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W here Are the Distant Worlds?

Star Maps

Abo ut the Activity Whe re are the distant worlds in the ? Use a map to find and to identify with extrasolar . (Northern Hemisphere only, )

Topics Covered • How to find Constellations • Where we have found planets around other stars

Participants Adults, teens, families with children 8 and up If a school/youth group, 10 years and older 1 to 4 participants per map

Materials Needed Location and Timing • Current month's Star Map for the Use this activity at a star party on a public (included) dark, clear night. Timing depends only • At least one set Planetary on how long you want to observe. Postcards with Key (included) • A small (red) flashlight • (Optional) Print list of Visible Stars with Planets (included)

Included in This Packet Page Detailed Activity Description 2 Helpful Hints 4 Background Information 5 Planetary Postcards 7 Key Planetary Postcards 9 Star Maps 20 Visible Stars With Planets 33

© 2008 Astronomical Society of the Pacific www.astrosociety.org Copies for educational purposes are permitted. Additional astronomy activities can be found here: http://nightsky.jpl.nasa.gov

Detailed Activity Description Leader’s Role Participants’ Roles (Anticipated) Introduction: To Ask: Who has heard that scientists have found planets around stars other than our own ? How many of these stars might you think have been found?

Anyone ever see a star that has planets around it? (our own Sun, some may know of other stars) We can’t see the planets around other stars, but we can see the star. We can also show you a picture of what the system might look like. Participants begin to think about and To Say: respond to questions We’re going to look at a map that will show us where to find these about extrasolar stars in the sky. planets beyond our . NASA missions are being designed right now to find more stars with planets and to find out which planets might have life! We’ll use the star map to find the constellations the stars are in and then find the stars with planets. To Ask: Participants share, What’s a ? learn, or are reminded (make sure the participants understand) of what constitutes a constellation. To Do: Facing , using the star map. Demonstrate how to use Participants practice the star map to find a using a star map to constellation and one of the find constellations and stars. Assist participants in stars with planets. finding other constellations and stars with planets. To demonstrate how to use a star map: If facing North, hold the map up against the sky and orient the star map so that North on the map is down - toward the northern horizon (see photo to the right). If facing East, orient the map so that East on the star map is down toward the eastern horizon.

2

Leader’s Role Participants’ Roles (Anticipated) To Do: Show participants the Planetary PostCard for the star they found in the sky. You will need a small flashlight. To Ask: Using the Planetary PostCard you can ask questions to stimulate Think about and discussion: discuss another • That star is hotter/colder than our Sun. How do you think that might affect its planets? • Here is where one of the planets that star. What would it be like to live on this (or one of its )? • If was orbiting that star, what might be different? • How big do you suppose this planet is compared to the planets in our Solar System? • Do you think we have found all the planets in this system? Additional Discussion on – the nearest star we know of with planets (besides the Sun!) To Say: The fastest speed recorded for a spacecraft was 150,000 miles per , reached by the that is in around the Sun. That’s 42 miles per second. To Ask: How long do you would it take to for someone living on Epsilon Eridani’s planet about 10 light years away, to get into our Solar System if they were traveling at the speed of our fastest spacecraft (light travels at 186,000 miles per second and our fastest spacecraft travels at about 42 miles per second)? Or for us to reach them?

The spacecraft would travel at 2/10,000th the speed of light (42 divided by 186,000 = 0.00022). So 1 light would take 5,000 years. Epsilon Eridani is about 10 light years from us. So . . . 10 years X 5,000 = 50,000 YEARS to get there.

To Discuss: • What would we have to do to take such a trip? • How would we stay in communication with the spacecraft? • Would a manned or unmanned spacecraft be a better idea? Why? • How long would it take for us to know the spacecraft had arrived? • How different do you think Earth will be in 50,000 years?

© 2008 Astronomical Society of the Pacific www.astrosociety.org Copies for educational purposes are permitted. 3 Additional astronomy activities can be found here: http://nightsky.jpl.nasa.gov

Helpful Hints • TO PROMOTE YOUR CLUB: You may want to copy your club’s information and schedule on the back side of the star map which you hand out.

• Emphasize that the stars marked on the star maps have planetary systems of their own, just like our star, the Sun, does.

• When you discuss other stars that have planets, some people may think you mean that some of OUR planets (like or ) are near other stars. A common misconception is that the stars are sprinkled among the planets of our Solar System. A discussion of stellar distances is instructive. The visible part of our is about 100,000 light years across and where we are it is about 1000 light years thick. You can use an example where the distance across our Solar System is a bit bigger than a quarter (with the Sun as a grain of sand in the center of the quarter) and the NEAREST star (4 light years away) is 2 football-field lengths away. The Milky Way Galaxy would span the United States (about 2500 miles) and be about 25 miles thick – about the same relative dimensions as a CD (100 to 1). To imagine the 200 billion stars in our Galaxy, think of building a four-foot high wall all around a football field and then filling it with birdseed. That’s roughly 200 billion bird seeds. Now imagine distributing those seeds (stars) over the entire USA, 25 miles deep. The stars are VERY far apart!

• If the participant has heard of the Voyager missions from the 1970’s, these spacecraft have passed well beyond the orbit of . Many people think these spacecraft are now “among the stars”. On the slightly-larger-than-quarter-sized model of our Solar System, The Voyager spacecraft are only about 2-3 inches beyond the edge of the quarter – still VERY far from even the nearest star.

© 2008 Astronomical Society of the Pacific www.astrosociety.org Copies for educational purposes are permitted. 4 Additional astronomy activities can be found here: http://nightsky.jpl.nasa.gov

Background Information

• Planet Naming Conventions:

You may have noticed that the planets around a star are named b, c, d, as in b, or Upsilon Andromeda b, Upsilon Andromeda c, and so on.

You may have wondered why there is no “a” planet. As premier extra-solar planet hunter Debra Fisher explains it: “The "A" component is reserved for the star. The default naming convention (since the IAU hasn't jumped in) is that the first detected planet is "b" continuing alphabetically. Usually, the first detected planet is the inner one (Keplerian biases) but in one case, GJ 876, the outer planet was discovered first. So GJ 876 b is the outer planet, and GJ 876 c is the inner planet.” (The IAU is the Internal Astronomical Union and is the organization that performs such tasks as setting naming conventions of astronomical objects.)

Note also that when there is a , the two stars are called, for example, A and Sirius B. The upper case A or B refers to stars. Lower case b, c, etc. refers to the planets.

• Finding the brightest stars with planets

The two brightest Northern Hemisphere stars with planets are gamma Cephei and . Fortunately they are visible almost all year and are fairly easy to find, even though they are only about 3rd . Note in the figure that you can use the pointer stars from the to point to the North Star () and then just continue on another 20 degrees or so to gamma Cephei. Iota Draconis is found by starting at the North Star, drawing a line through the star at the “bottom” of the Little Dipper and continuing on to iota Draconis.

For more information on locations of distant worlds and for a 3-D interactive of where the distant worlds are: http://planetquest1.jpl.nasa.gov/atlas/atlas_index.cfm

© 2008 Astronomical Society of the Pacific www.astrosociety.org Copies for educational purposes are permitted. 5 Additional astronomy activities can be found here: http://nightsky.jpl.nasa.gov

Copyright Notice: The artist’s conception images of the planetary systems on the front of the Planetary PostCards are copyrighted by Lynette Cook. You have permission to make photocopies of these cards or print out and copy the images from this Manual. You may not reproduce the images in any other manner. You may only use the images in your education and public outreach events. Permission of the artist, Lynette Cook, must be obtained for any additional use of the artwork.

The reverse side of the Planetary PostCards can be copied and used for any education and public outreach use. You may want to change the reverse side of the cards to include your club’s information if you want to use them as handouts at star parties.

© 2008 Astronomical Society of the Pacific www.astrosociety.org Copies for educational purposes are permitted. Additional astronomy activities can be found here: http://nightsky.jpl.nasa.gov

Suggested Discussion Questions for Planetary PostCards

That star is hotter/colder than our Sun. How do you Planetary PostCards think that might affect its planets?

Here is where one of the planets orbits that star. What would it be like to live on this planet (or one of its moons)?

If Earth was orbiting that star, what might be different? Artist: Lynette Cook System How big do you suppose this planet is compared to Abbreviations and terms used on PostCards the planets in our Solar System? RA = Do you think we have found all the planets in this Dec = system? mag = apparent visual magnitude AU = , the distance between the Earth and Our fastest spacecraft travels 42 miles per second. It the Sun: 93 million miles or 150 million km would take 5,000 years for that spacecraft to go one Light year = The distance light travels in a year. Light travels at light year. How long would it take to reach this star 186,000 miles per second or 300,000 km per second. Light which is ____ light years away? from the Sun takes 8 minutes to reach Earth. Jupiter = 1.9 x1027 kg. Jupiter is about 300 times more How different do you think Earth will be in that massive than Earth (approximate difference between a large period of time? bowling ball and a small marble) of the stars is in degrees Celsius Ursa gamma Cephei 39' º mag: 3.2 mag: Dec: 77 Dec: RA: 23h 39m RA: Ursa MajorUrsa

Star: Gamma Cephei Planet: Gamma Cephei b Star’s System Compared to Our Solar System

How far in How Hot? light years? °C 150 7000 Uranus

< Sun 100 Saturn Star > 5000

Gamma Cephei b > 50 3000 Jupiter < 39 < Companion Star

Sun 1000 Planet (year discovered): b (2002)

The brightest star with a planet is Avg Distance From Star: 2 AU (Earth from Sun = 1 AU) a Binary star AND it’s a ! Orbit: Its small “companion star” gets as 2.5 years close as 12 AU in a 40-year orbit. Mass: 1.8

© Astronomical Society of the Pacific 2004. Copies for educational purposes permitted. Cepheus Draco Ursa Ursa Minor iota Draconis 57' º RA: 15h 24m RA: 58 Dec: mag: 3.3 mag: Ursa MajorUrsa

Star: Iota Draconis Planet: Star’s System Compared to Our Solar System How far in How Hot? light years? °C 150 7000 Earth < Sun Mercury iota Draconis b > 100 < 100 Star > 5000

Venus 50 3000

Sun 1000 Planet (year discovered): b (2002) Avg Distance From Star: 1.3 AU (Earth from Sun = 1 AU) Same mass as the Sun but 13x the diameter! Orbit: 1.5 years Mass: 8.7 Jupiters(!) © Astronomical Society of the Pacific 2004. Copies for educational purposes educational permitted. for Copies 2004. Society© Astronomical of the Pacific Telrad Telrad View © 2001 Lynette Cook, all rights reserved. Copies permitted from this format only. this format from permitted Copies all rights reserved. Cook, © 2001 Lynette Epsilon Eridani Epsilon 26.8' º RA: 3h 33m RA: -9 Dec: mag: 3.7 mag: closer to the planet. Also shows a possible dust ring around the star. a possible dust ring around shows Also the planet. closer to View from a frozen of the “b” planet, with a smaller volcanic moon with a smaller volcanic planet, moon of the “b” View a frozen from

Star: Epsilon Eridani Planet: and c Star’s System Compared to Our Solar System

How far in How Hot? light years? °C Epsilon Eridani c > 7000 150 < Sun Neptune Star > 5000 Uranus Jupiter 100 Pluto Earth Mars< Epsilon Eridani b 3000 Saturn 50

< 10 1000 Sun Planets (year discovered): b (2000) c (2002) Avg Distance From Star: 3.3 AU 40 AU This is the closest star to us with (Earth from Sun = 1 AU) known planets. Our fastest spacecraft would take 50,000 Orbit: 6.8 years 260 years years to reach this . Mass: 90% of Jupiter 10% of Jupiter

© Astronomical Society of the Pacific 2004. Copies for educational purposes permitted. 24' º Telrad View Telrad RA: 1h 26m RA: 41 Dec: mag: 4.1 mag: © 1999 Lynette Cook, all rights reserved. Copies permitted from this format only. this format from permitted Copies all rights reserved. Cook, © 1999 Lynette Cassiopeia shown with a ring likeshown Saturn’s. Cepheus Upsilon Shows all three known planets – the outer and most massive planet is known and most massive all three planets – the outer Shows Andromeda

Star: Upsilon Andromedae Planet: , c, and d Star’s System Compared to Our Solar System

How far in How Hot? light years? °C Mars 150 7000 Jupiter Earth Star > < Sun < Ups And b 100 5000 Venus < upsilon Andromedae c

> 50 3000 < 44

1000 Planets (year discovered): b (1996) c (1999) d (1999) Sun Avg Distance From Star: 0.06 AU 0.83 AU 2.5 AU (Earth from Sun = 1 AU) This is the first star discovered Orbit: 4.6 Days 8 Months 3.5 Years with a confirmed multi-planet Mass: 71% Jupiter 2.1 Jupiters 4.6 Jupiters system. Planet b was discovered in 1996 and c & d in 1999.

© Astronomical Society of the Pacific 2004. Copies for educational purposes permitted. Telrad View Telrad © 1996 Lynette Cook, all rights reserved. Copies permitted from this format only. this format from permitted Copies all rights reserved. Cook, © 1996 Lynette 27' º Tau Bootis Tau mag: 4.5 mag: RA: 13h 47m RA: 17 Dec: Boötes View of the Jupiter-like planet with its star in the background.

Star: Tau Bootis Planet: Tau Bootis b Star’s System Compared to Our Solar System

How far in How Hot? light years? °C 150 7000 Earth Star > Mars Venus < Sun 100 5000 < Tau Bootis b

Mercury 50 < 49 3000

1000 Sun Planet (year discovered): b (1996) This huge planet is orbiting so Avg Distance From Star: 0.05 AU close to its star and its star is so (Earth from Sun = 1 AU) hot, this may be the hottest Orbit: 3.3 days planet yet discovered! Mass: 3.9 Jupiters

© Astronomical Society of the Pacific 2004. Copies for educational purposes permitted. 47' º RA: 13h 28m RA: 13 Dec: mag: 5 mag: Telrad View Telrad © 1996 Lynette Cook, all rights reserved. Copies permitted from this format only. this format from permitted Copies all rights reserved. Cook, © 1996 Lynette Coma and the other moon resembling Earth.and the other moon resembling Boötes The planet is shown with a ring and two moons. A small, gold moon A small, moons. with a ring and two planet is shown The

Star: 70 Virginis Planet: Star’s System Compared to Our Solar System How far in How Hot? light years? °C 7000 150 Earth Venus < Sun Mars Star > 100 5000 < 70 Virginis b

< 72 50 3000 Mercury

1000 Sun

This massive planet is orbiting a Planet (year discovered): b (1996) star cooler than the Sun. It may Avg Distance From Star: 0.4 AU have moons with liquid . (Earth from Sun = 1 AU) The planet is shown on the front with a ring and two moons. One Orbit: 117 days moon is shown resembling Earth, Mass: 6.6 Jupiters having oceans and land. © Astronomical Society of the Pacific 2004. Copies for educational purposes permitted. Ursa MajorUrsa 25' º RA: 10h 59m RA: 40 Dec: mag: 5.1 mag: © 2001 Lynette Cook, all rights reserved. Copies permitted from this format only. this format from permitted Copies all rights reserved. Cook, © 2001 Lynette 47 Ursae View from a possible moon of the outermost planet. Also shown: the shown: Also View a possibleplanet. moon of the outermost from confirmed inner planet and a possible “water world” close to the star. close to world” inner planet and a possible “water confirmed Telrad View Telrad

Star: 47 Ursae Majoris Planets: 47 Ursae Majoris b and c Same Size as Our Sun Star’s System Compared to Our Solar System

How far in How Hot? light years? °C 150 7000 Saturn Ursae Maj c > < Sun Star > Jupiter 100 5000 Mars < Ursae Maj b 50 3000 < 43

1000 Sun Planets (year discovered): b (1996) c (2001) Two giant planets are orbiting in Avg Distance From Star: 2.1 AU 3.7 AU nearly circular orbits far from their (Earth from Sun = 1 AU) star. This system is somewhat like our Orbit: 3 years 7.1 years Solar System. Might rocky planets Mass: 2.4 Jupiters 76% of Jupiter like Earth exist closer to the star?

© Astronomical Society of the Pacific 2004. Copies for educational purposes permitted. Telrad View Telrad © 1998 Lynette Cook, all rights reserved. Copies permitted from this format only. this format from permitted Copies all rights reserved. Cook, © 1998 Lynette Boötes 19' º Rho Coronae mag: 5.4 mag: RA: 16h 01m RA: 33 Dec: Corona Jupiter-like planet orbits its star at about the same distance as Mercury orbits the Sun. the orbits Mercury as distance same the about at star its orbits planet Jupiter-like

Star: Rho Coronae Borealis Planet: Rho Coronae Borealis b Star’s System Compared to Our Solar System

How far in How Hot? light years? °C 150 7000 Earth Venus Mars Star > < Sun 100 5000 < Rho Cor Bor b

< 55 50 3000 Mercury

1000 Sun Planet (year discovered): b (1997) A belt of rocky/icy objects appears to Avg Distance From Star: 0.23 AU orbit this star at about the same (Earth from Sun = 1 AU) distance as the from our Orbit: 39.6 days Sun. The occasional comet may appear in skies of this star’s planet(s). Mass: 1.1 Jupiters

© Astronomical Society of the Pacific 2004. Copies for educational purposes permitted. The “” orbiting very close to its star. 46' º Telrad View Telrad RA: 22h 57m RA: 20 Dec: mag: 5.5 mag:

Pegasus © 1995 Lynette Cook, all rights reserved. Copies permitted from this format only.

Star: 51 Pegasi Planet: Star’s System Compared to Our Solar System

How far in How Hot? light years? °C Earth 150 7000 Venus Mars Star > < Sun 100 5000 < 51 Pegasi b

Mercury 50 < 48 3000

1000 Sun Planets (year discovered): b (1995) This star was the FIRST sun-like Avg Distance From Star: 0.05 AU star discovered to have a planet (Earth from Sun = 1 AU) – in 1995, the first evidence that other stars like our Sun have Orbit: 4.2 days planetary systems. Mass: 50% of Jupiter

© Astronomical Society of the Pacific 2004. Copies for educational purposes permitted. 10' º Telrad Telrad View mag: 5.9 mag: RA: 5h 46m RA: 1 Dec: © 2000 Lynette Cook, all rights reserved. Copies permitted from this format only. this format from permitted Copies all rights reserved. Cook, © 2000 Lynette Orion HD 38529 (Orion) which is shown with rings and two other moons. with rings and two which is shown View from the surface of a hypothetical icy moon of the outermost planet, View the surface from icy of a hypothetical planet, moon of the outermost

Star: HD 38529 (Orion) Planets: HD 38529 b and c Star’s System Compared to Our Solar System How far in How Hot? light years? °C 7000 150 HD 38529 c > < 138 < Sun Star > 100 5000 < HD 38529 b

50 3000 Mars

1000 Jupiter Sun

This star is very dim – it is about how Planets (year discovered): b (2000) c (2002) bright our Sun would look from the Avg Distance From Star: 0.12 AU 3.5 AU distance of this star. Compare this “small” star to Orion’s Betelgeuse – a (Earth from Sun = 1 AU) red giant over 400 light years away Orbit: 14.4 days 6 years or Rigel – a blue hot supergiant at over 750 light years. Mass: 77% of Jupiter 11.3 Jupiters © Astronomical Society of the Pacific 2004. Copies for educational purposes permitted. Planetary PostCards Key

FRONT

Name of Star

Location of star in constellation View through a Telrad

Right Ascension, finder (unmagnified 4°

Declination, and field of view)

Apparent Visual

Magnitude of star

Description of Artist’s Conception

Artist’s Conception of Planetary System (if displayed)

BACK

INFORMATION INFORMATION ABOUT THE ABOUT THE STAR STAR’S PLANETS

Name of the Star Orbits of the star’s planets compared to the orbits of the Sun’s planets Star’s temperature compared to the Sun’s temperature in Celsius Planet’s name (b, c, etc.) and the year it was discovered Star’s Distance from the Sun in Average distance of the Light Years planet from its star in Astronomical Units (AU = distance from Earth to Sun) Fun fact about the star and/or its Period of the planet’s orbit planets in Earth years or days

Mass of the planet compared to Jupiter’s mass (Jupiter is 300 Icon(s) representing the times the mass of Earth) planet’s mass in Jupiters Where are the Distant Worlds? The all-sky map represents the night sky January To locate stars in the sky, hold the map

as seen from approximately 35° north above your head and orient it so that one at the following times: North of the four direction labels matches the direction you’re facing. The map will then 9 p.m. standard time on January 1 4 represent what you see in the sky. 8 p.m. standard time on January 15

7 p.m. standard time on January 31 DRACO

MAJOR

MINOR

URSA CYGNUS

14 URSA

CEPHEUS

Polaris

17 3

LEO

CASSIOPEIA

CANCER

Regulus 20 PERSEUS

Casto

Capella

Pollux

r Enif

1 7

ANDROMEDA 16 Algol East

T

AURUS PEGASUS West

Pleiades S

U CANIS S MINOR Betelgeuse 5 RI AldebaranHyades ORION ARIE

AQUA 19 13 8

Mira Sirius 6 Rigel 9

CANIS MAJOR

ERIDANUS

COLUMBA

South Stars visible to the unaided eye known to have planets — listed brightest to dimmest (stars visible this month are circled and numbered on the map) 1 – (Gemini) 7 – Upsilon Andromedae 14 – 47 Ursae Majoris 2 –  8 – 91 Aquarii 15 – Rho Coronae Borealis () 9 – HD 60532 () 16 – 51 Pegasi 3 – Gamma Cephei 10 – Tau Bootis 17 – HD 89744 () 4 – Iota Draconis 11 – Ksi Aquilae 18 – Gliese 777a (Cygnus) 5 – Epsilon Tauri 12 – 70 Virginis 19 – HD 38529 (Orion) 6 – Epsilon Eridani 13 – HD 19994 (Cetus) 20 – 55 Cancri

Copyright 2009 Astronomical Society of the Pacific. Copies for educational purposes are permitted. Map by Richard Talcott, senior editor, Astronomy magazine. Where are the Distant Worlds? The all-sky map represents the night sky February To locate stars in the sky, hold the map

as seen from approximately 35° north above your head and orient it so that one latitude at the following times: North of the four direction labels matches the direction you’re facing. The map will then 9 p.m. standard time on February 1 represent what you see in the sky. 8 p.m. standard time on February 15

7 p.m. standard time on February 28 4

DRACO

CEPHEUS

MINOR

URSA

MAJOR

URSA

Polaris 3

16 CASSIOPEIA

14

17 ANDROMEDA

7

PEGASUS PERSEUS

a

AURIGA Capell

Algol

LEO

Castor Pollux

CANCER 20 TRIANGULUM East

S

E

1

Pleiades West

URUS PISC GEMINI TA Ecliptic 5 Procyon

Aldebaran CANIS Bete MINOR lgeuse Mira 13 19 Alphard ORION 6 CETUS

Rigel Sirius

9

CANIS LEPUS MAJOR ERIDANUS PUPPIS

COLUMBA

Canopus

South Stars visible to the unaided eye known to have planets — listed brightest to dimmest (stars visible this month are circled and numbered on the map) 1 – Pollux (Gemini) 7 – Upsilon Andromedae 14 – 47 Ursae Majoris 2 – Fomalhaut 8 – 91 Aquarii 15 – Rho Coronae Borealis (Piscis Austrinus) 9 – HD 60532 (Puppis) 16 – 51 Pegasi 3 – Gamma Cephei 10 – Tau Bootis 17 – HD 89744 (Ursa Major) 4 – Iota Draconis 11 – Ksi Aquilae 18 – Gliese 777a (Cygnus) 5 – Epsilon Tauri 12 – 70 Virginis 19 – HD 38529 (Orion) 6 – Epsilon Eridani 13 – HD 19994 (Cetus) 20 – 55 Cancri

Copyright 2009 Astronomical Society of the Pacific. Copies for educational purposes are permitted. Map by Richard Talcott, senior editor, Astronomy magazine. Where are the Distant Worlds? The all-sky map represents the night sky March To locate stars in the sky, hold the map

as seen from approximately 35° north above your head and orient it so that one latitude at the following times: North of the four direction labels matches the direction you’re facing. The map will then 10 p.m. standard time on March 1 represent what you see in the sky. 9 p.m. standard time on March 15

8 p.m. standard time on March 31

DRACO

CASSIOPEIA

MINOR

URSA 3 15 CEPHEUS

4 7

Polaris

BOOTES

ANDROMEDA

Algol

PERSEUS

TRIANGULUM

ARIES

MAJOR MAJOR

Capella

URSA

10 Pleiades COMA AURIGA BERENICES 14

17 TAURUS

12

CETUS East

Denebola 5

VIRGO 20 1 West CANCER LEO

Pollux Hyades 13

Aldebaran

Regulus GEMINI 6 Ecliptic 19 Spic ERIDANUS Procyon ORION CANIS Betelgeuse a MINOR HYDRA Alphard Rigel

Sirius LEPUS 9

CANIS MAJOR

COLUMBA PUPPIS

South Stars visible to the unaided eye known to have planets — listed brightest to dimmest (stars visible this month are circled and numbered on the map) 1 – Pollux (Gemini) 7 – Upsilon Andromedae 14 – 47 Ursae Majoris 2 – Fomalhaut 8 – 91 Aquarii 15 – Rho Coronae Borealis (Piscis Austrinus) 9 – HD 60532 (Puppis) 16 – 51 Pegasi 3 – Gamma Cephei 10 – Tau Bootis 17 – HD 89744 (Ursa Major) 4 – Iota Draconis 11 – Ksi Aquilae 18 – Gliese 777a (Cygnus) 5 – Epsilon Tauri 12 – 70 Virginis 19 – HD 38529 (Orion) 6 – Epsilon Eridani 13 – HD 19994 (Cetus) 20 – 55 Cancri

Copyright 2009 Astronomical Society of the Pacific. Copies for educational purposes are permitted. Map by Richard Talcott, senior editor, Astronomy magazine. Where are the Distant Worlds? The all-sky map represents the night sky April To locate stars in the sky, hold the map

as seen from approximately 35° north above your head and orient it so that one latitude at the following times: North of the four direction labels matches the direction you’re facing. The map will then 10 p.m. standard time on April 1 represent what you see in the sky. 10 p.m. daylight time on April 15

9 p.m. daylight time on April 30 CEPHEUS

CASSIOPEIA

V

ega

3 PERSEUS

DRACO

Algol

Polaris HERCULES

URSA MINOR URSA

4 Pleiades

Capella

AURUS

15 T

5 Hyades

AURIGA

B C

OREALIS MAJOR URSA

ORONA

CAPUT

SERPENS

BOOTE

GEMINI Aldebaran 14 17 Castor S 1

East ORION

COMA Pollux Arcturus BERENICES 20

10 West 12 19 Denebola VIRGO LEO CANCER Regulus Betelgeuse

CANIS MINOR Rigel Ecliptic Procyon

Alphard HYDRA Sirius CRA TER CORVU 9 S

CANIS MAJOR

PUPPIS

CENT AURUS VELA

South Stars visible to the unaided eye known to have planets — listed brightest to dimmest (stars visible this month are circled and numbered on the map) 1 – Pollux (Gemini) 7 – Upsilon Andromedae 14 – 47 Ursae Majoris 2 – Fomalhaut 8 – 91 Aquarii 15 – Rho Coronae Borealis (Piscis Austrinus) 9 – HD 60532 (Puppis) 16 – 51 Pegasi 3 – Gamma Cephei 10 – Tau Bootis 17 – HD 89744 (Ursa Major) 4 – Iota Draconis 11 – Ksi Aquilae 18 – Gliese 777a (Cygnus) 5 – Epsilon Tauri 12 – 70 Virginis 19 – HD 38529 (Orion) 6 – Epsilon Eridani 13 – HD 19994 (Cetus) 20 – 55 Cancri

Copyright 2009 Astronomical Society of the Pacific. Copies for educational purposes are permitted. Map by Richard Talcott, senior editor, Astronomy magazine. Where are the Distant Worlds? The all-sky map represents the night sky May To locate stars in the sky, hold the map

as seen from approximately 35° north above your head and orient it so that one latitude at the following times: North of the four direction labels matches the

direction you’re facing. The map will then midnight daylight time on May 1 CASSIOPEIA represent what you see in the sky. 11 p.m. daylight time on May 15

10 p.m. daylight time on May 31

Capella

CEPHEUS

AURIGA

Deneb 3

Polaris

CYGNUS

MINOR URSA

18

Castor

V

eg SAGITT DRACO

GEMINI

a 1

HERCULES

L

YRA A Pollux

4

URSA MAJOR URSA 20 17

15 14 CANCER East

SERPENS CAUDA n CANIS

CORONA West

BOREALIS Procyo

SERPENS Regulus CAPUT Arcturus LEO COMA 10 BERENICES 12 BOOTES Denebola Ecliptic Alphard VIRGO HYDRA TER LIBRA CRA Spica CORVUS

SCORPIUS

LUPUS

CENTAURUS

South Stars visible to the unaided eye known to have planets — listed brightest to dimmest (stars visible this month are circled and numbered on the map) 1 – Pollux (Gemini) 7 – Upsilon Andromedae 14 – 47 Ursae Majoris 2 – Fomalhaut 8 – 91 Aquarii 15 – Rho Coronae Borealis (Piscis Austrinus) 9 – HD 60532 (Puppis) 16 – 51 Pegasi 3 – Gamma Cephei 10 – Tau Bootis 17 – HD 89744 (Ursa Major) 4 – Iota Draconis 11 – Ksi Aquilae 18 – Gliese 777a (Cygnus) 5 – Epsilon Tauri 12 – 70 Virginis 19 – HD 38529 (Orion) 6 – Epsilon Eridani 13 – HD 19994 (Cetus) 20 – 55 Cancri

Copyright 2009 Astronomical Society of the Pacific. Copies for educational purposes are permitted. Map by Richard Talcott, senior editor, Astronomy magazine. Where are the Distant Worlds? The all-sky map represents the night sky June To locate stars in the sky, hold the map

as seen from approximately 35° north above your head and orient it so that one latitude at the following times: North of the four direction labels matches the direction you’re facing. The map will then midnight daylight time on June 1 represent what you see in the sky. 11 p.m. daylight time on June 15

10 p.m. daylight time on June 30 CASSIOPEIA

3

aris l CEPHEUS Po

MINOR URSA

20 Deneb URSA MAJOR URSA

DRACO 17 CYGNUS

14

V ega 4

18

DELPHINUS

SAGITT

Regulus

L

YRA

LEO A

East 15 S

HERCULES

BOOTES 11 West Altair

10 COMA CORONA BERENICE BOREALIS Ecliptic 12 Denebola

AQUILA SERPENS SERPENS CAUDA CAPUT Arcturus

OPHIUCHUS

SCUTU VIRGO R TE M

CRA Spica LIBRA

CORVUS Ant SAGITT ares

ARIUS

TAURUS CEN SCORPIU S

South Stars visible to the unaided eye known to have planets — listed brightest to dimmest (stars visible this month are circled and numbered on the map) 1 – Pollux (Gemini) 7 – Upsilon Andromedae 14 – 47 Ursae Majoris 2 – Fomalhaut 8 – 91 Aquarii 15 – Rho Coronae Borealis (Piscis Austrinus) 9 – HD 60532 (Puppis) 16 – 51 Pegasi 3 – Gamma Cephei 10 – Tau Bootis 17 – HD 89744 (Ursa Major) 4 – Iota Draconis 11 – Ksi Aquilae 18 – Gliese 777a (Cygnus) 5 – Epsilon Tauri 12 – 70 Virginis 19 – HD 38529 (Orion) 6 – Epsilon Eridani 13 – HD 19994 (Cetus) 20 – 55 Cancri

Copyright 2009 Astronomical Society of the Pacific. Copies for educational purposes are permitted. Map by Richard Talcott, senior editor, Astronomy magazine. Where are the Distant Worlds? The all-sky map represents the night sky July To locate stars in the sky, hold the map

as seen from approximately 35° north above your head and orient it so that one latitude at the following times: North of the four direction labels matches the direction you’re facing. The map will then midnight daylight time on July 1 represent what you see in the sky. 11 p.m. daylight time on July 15

10 p.m. daylight time on July 31

7 ANDROMEDA

CASSIOPEIA

Polaris 17 CEPHEUS

3 MAJOR URSA MINOR

URSA 14

P

EGASUS DRACO

Deneb 4

CYGNUS

16 V HERCULES

ega

s

BERENICES

BOOTES

COMA u

15 r East

LY u t

SAGITT c

RA r 10

18 A

Enif 12 West

A

Altair CORONA BOREALIS

AQUARIUS

11

SERPENS VIRGO CAPUT

AQUILA OPHIUCHUS

Spica SCUTUM

CAPRICORNUS SERPENS LIBRA CAUDA

Antares

SAG ITTARIUS S LUPU

SCORPIUS

South Stars visible to the unaided eye known to have planets — listed brightest to dimmest (stars visible this month are circled and numbered on the map) 1 – Pollux (Gemini) 7 – Upsilon Andromedae 14 – 47 Ursae Majoris 2 – Fomalhaut 8 – 91 Aquarii 15 – Rho Coronae Borealis (Piscis Austrinus) 9 – HD 60532 (Puppis) 16 – 51 Pegasi 3 – Gamma Cephei 10 – Tau Bootis 17 – HD 89744 (Ursa Major) 4 – Iota Draconis 11 – Ksi Aquilae 18 – Gliese 777a (Cygnus) 5 – Epsilon Tauri 12 – 70 Virginis 19 – HD 38529 (Orion) 6 – Epsilon Eridani 13 – HD 19994 (Cetus) 20 – 55 Cancri

Copyright 2009 Astronomical Society of the Pacific. Copies for educational purposes are permitted. Map by Richard Talcott, senior editor, Astronomy magazine. Where are the Distant Worlds? The all-sky map represents the night sky August To locate stars in the sky, hold the map

as seen from approximately 35° north above your head and orient it so that one latitude at the following times: North of the four direction labels matches the direction you’re facing. The map will then 11 p.m. daylight time on August 1 represent what you see in the sky. 10 p.m. daylight time on August 15

9 p.m. daylight time on August 31 PERSEUS

17

TRIANGULUM

URSA MAJOR URSA 14

CASSIOPEIA

ANDROMEDA

7 Polaris

MINOR CEPHEUS 3 URSA

DRACO 4

Deneb

PEGASUS

BERENICES

COMA

HERCULES

CYGNU

V ega 15 10

Arcturus 12 East

16 S PISCES 18 West

CORONA BOREALIS SAGITT BOOTES Enif DELPHINUS A Altair VIRGO ERPENS

S CAPUT 11 SERPENS 8 CAUDA a AQUILA Spic

OPHIUCHUS Ecliptic SCUTUM

CAPRICORNUS LIBRA

Antares

SAGITT SCORPIUS ARIUS

South Stars visible to the unaided eye known to have planets — listed brightest to dimmest (stars visible this month are circled and numbered on the map) 1 – Pollux (Gemini) 7 – Upsilon Andromedae 14 – 47 Ursae Majoris 2 – Fomalhaut 8 – 91 Aquarii 15 – Rho Coronae Borealis (Piscis Austrinus) 9 – HD 60532 (Puppis) 16 – 51 Pegasi 3 – Gamma Cephei 10 – Tau Bootis 17 – HD 89744 (Ursa Major) 4 – Iota Draconis 11 – Ksi Aquilae 18 – Gliese 777a (Cygnus) 5 – Epsilon Tauri 12 – 70 Virginis 19 – HD 38529 (Orion) 6 – Epsilon Eridani 13 – HD 19994 (Cetus) 20 – 55 Cancri

Copyright 2009 Astronomical Society of the Pacific. Copies for educational purposes are permitted. Map by Richard Talcott, senior editor, Astronomy magazine. Where are the Distant Worlds? The all-sky map represents the night sky September To locate stars in the sky, hold the map

as seen from approximately 35° north above your head and orient it so that one latitude at the following times: North of the four direction labels matches the direction you’re facing. The map will then 10 p.m. daylight time on September 1 represent what you see in the sky. 9 p.m. daylight time on September 15

8 p.m. daylight time on September 30

R

URSA MAJO URSA

PERSEU

S

Algo

l

s Polari

R

INO CASSIO

M

A

RS

U

T

P

EI RIAN ANDROM

A 3

S

G

ULUM 7

E

DA

BERENICE ARIES

4 COMA

S

E

RACO

D

C

EPHEU

BOOT S

urus 10

Dene

Arct 12

b 15 P

a

PEGASUS ISCES

g Ve

East

BOREALIS CORONA

CYGNUS RA

S 16 LY West

18 T

SAGITTA HERCULES

Ecli En SERPEN DELPHINUS CAPU 5 p if ti M c Altair S 11 ERPENA S S CAUD 8 AQUILA A AQUARIUS OPHIUCHU

LIBR SCUTUM

Fo PISCIS AUST malhau CAPRICORNU s t RINUS S 2 S Antare

SCORPIU SAGITTARIUS

G RUS

South Stars visible to the unaided eye known to have planets — listed brightest to dimmest (stars visible this month are circled and numbered on the map) 1 – Pollux (Gemini) 7 – Upsilon Andromedae 14 – 47 Ursae Majoris 2 – Fomalhaut 8 – 91 Aquarii 15 – Rho Coronae Borealis (Piscis Austrinus) 9 – HD 60532 (Puppis) 16 – 51 Pegasi 3 – Gamma Cephei 10 – Tau Bootis 17 – HD 89744 (Ursa Major) 4 – Iota Draconis 11 – Ksi Aquilae 18 – Gliese 777a (Cygnus) 5 – Epsilon Tauri 12 – 70 Virginis 19 – HD 38529 (Orion) 6 – Epsilon Eridani 13 – HD 19994 (Cetus) 20 – 55 Cancri

Copyright 2009 Astronomical Society of the Pacific. Copies for educational purposes are permitted. Map by Richard Talcott, senior editor, Astronomy magazine. Where are the Distant Worlds? The all-sky map represents the night sky October To locate stars in the sky, hold the map

as seen from approximately 35° north above your head and orient it so that one latitude at the following times: North of the four direction labels matches the direction you’re facing. The map will then 10 p.m. daylight time on October 1 represent what you see in the sky. 9 p.m. daylight time on October 15

7 p.m. standard time on October 31 URSA MAJOR URSA

Capella

AURIGA

URSA MINOR URSA Polaris

4

3 BOOTES

PERSEUS

CASSIOPEIA

Algol DRACO Pleiades

15

BOREALIS TRIANGULUM

CORONA CEPHEUS

7

ANDROMEDA

ga

b

Ve

S

Dene

ARIES

RA

LY

CAPUT SERPENS

CYGNUS HERCULE

PEGASUS East

13 PISCES 18 West

Mira 16 r Enif DELPHINUS 11 Altai

Ecliptic OPHIUCHUS

CETUS AQUILA 8 SCUTUM

AQUARIUS SERPENS CAUDA

Fomalhaut

2 CAPRICORNUS PISCIS AUSTRINUS

GRUS ARIUS SAGITT

South Stars visible to the unaided eye known to have planets — listed brightest to dimmest (stars visible this month are circled and numbered on the map) 1 – Pollux (Gemini) 7 – Upsilon Andromedae 14 – 47 Ursae Majoris 2 – Fomalhaut 8 – 91 Aquarii 15 – Rho Coronae Borealis (Piscis Austrinus) 9 – HD 60532 (Puppis) 16 – 51 Pegasi 3 – Gamma Cephei 10 – Tau Bootis 17 – HD 89744 (Ursa Major) 4 – Iota Draconis 11 – Ksi Aquilae 18 – Gliese 777a (Cygnus) 5 – Epsilon Tauri 12 – 70 Virginis 19 – HD 38529 (Orion) 6 – Epsilon Eridani 13 – HD 19994 (Cetus) 20 – 55 Cancri

Copyright 2009 Astronomical Society of the Pacific. Copies for educational purposes are permitted. Map by Richard Talcott, senior editor, Astronomy magazine. Where are the Distant Worlds? The all-sky map represents the night sky November To locate stars in the sky, hold the map

as seen from approximately 35° north above your head and orient it so that one latitude at the following times: North of the four direction labels matches the direction you’re facing. The map will then 9 p.m. standard time on November 1 represent what you see in the sky. 8 p.m. standard time on November 15

7 p.m. standard time on November 30 MAJOR URSA

4

MINOR

URSA

Polaris

HERCULES HERCULES DRACO Capella

3

AURIGA

CEPHEUS

ga

Ve

YRA PERSEUS

L TA

Algol CASSIOPEIA

Deneb

URUS

CYGNUS ORION

Pleiades 7 5 TRIANGULUM ANDROMEDA

Hyades

Aldebaran

East 18 A

ARIES West

SAGITT

AQUILA

11 Altair PISCES PEGASUS 16

13 Enif DELPHINUS

6 Mira

SCUTUM ERIDANUS 8 CETU S Ecliptic AQUARIUS

Fomalhaut 2 CAPRICORNUS

PISCIS AUSTRINUS

South Stars visible to the unaided eye known to have planets — listed brightest to dimmest (stars visible this month are circled and numbered on the map) 1 – Pollux (Gemini) 7 – Upsilon Andromedae 14 – 47 Ursae Majoris 2 – Fomalhaut 8 – 91 Aquarii 15 – Rho Coronae Borealis (Piscis Austrinus) 9 – HD 60532 (Puppis) 16 – 51 Pegasi 3 – Gamma Cephei 10 – Tau Bootis 17 – HD 89744 (Ursa Major) 4 – Iota Draconis 11 – Ksi Aquilae 18 – Gliese 777a (Cygnus) 5 – Epsilon Tauri 12 – 70 Virginis 19 – HD 38529 (Orion) 6 – Epsilon Eridani 13 – HD 19994 (Cetus) 20 – 55 Cancri

Copyright 2009 Astronomical Society of the Pacific. Copies for educational purposes are permitted. Map by Richard Talcott, senior editor, Astronomy magazine. Where are the Distant Worlds? The all-sky map represents the night sky December To locate stars in the sky, hold the map

as seen from approximately 35° north above your head and orient it so that one latitude at the following times: North of the four direction labels matches the direction you’re facing. The map will then 9 p.m. standard time on December 1 represent what you see in the sky. 8 p.m. standard time on December 15

7 p.m. standard time on December 31 4

MAJOR

URSA

MINOR

URSA

DRACO

ga

Ve

Polaris

RA LY

3 S Pollux

CEPHEU Castor

b

CYGNUS

1 Dene

Capella

GEMINI

CASSIOPEIA

18 A

Procyon AURI

SAGITT

PERSEUS

MINOR

CANIS

r GA Algol

7 Altai

T

AURUS 11 East

TRIANGULUM Pleiades ANDROMEDA

Betelgeuse West 5 S DELPHINUS Hyades 16 Aldebaran ARIES

Enif PEGASU

19 ORION

13 PISCES Eclipti Rigel Mira c 6 8

LEPUS CETUS AQUARIUS

ERIDANUS 2 Fomalhaut

PISCIS AUSTRINUS PHOENIX

South Stars visible to the unaided eye known to have planets — listed brightest to dimmest (stars visible this month are circled and numbered on the map) 1 – Pollux (Gemini) 7 – Upsilon Andromedae 14 – 47 Ursae Majoris 2 – Fomalhaut 8 – 91 Aquarii 15 – Rho Coronae Borealis (Piscis Austrinus) 9 – HD 60532 (Puppis) 16 – 51 Pegasi 3 – Gamma Cephei 10 – Tau Bootis 17 – HD 89744 (Ursa Major) 4 – Iota Draconis 11 – Ksi Aquilae 18 – Gliese 777a (Cygnus) 5 – Epsilon Tauri 12 – 70 Virginis 19 – HD 38529 (Orion) 6 – Epsilon Eridani 13 – HD 19994 (Cetus) 20 – 55 Cancri

Copyright 2009 Astronomical Society of the Pacific. Copies for educational purposes are permitted. Map by Richard Talcott, senior editor, Astronomy magazine. Visible Stars with Planets (Brightest to Dimmest)

Constell- Star data / Star Solar Eccent Avg Dist Orbital Distance Appar- Planet ation Spec Type Surface / ricity from Period Host Star from Earth ent Planets Mass Temp (K) Solar Star (light-years) Mag. (Jupiter=1) est. Radii (AU) 1 Cepheus gamma 38.5 3.225 Binary 12 4900 1.6 / 4.7 b 1.76 0.2 2 2.5 yrs Cephei AU apart – 40 yr period / K1 IV RedGiant 2 Draco Iota 100 3.3 K2III 4420 1.05 / 13 b 8.7 0.71 1.3 550.651 Draconis RedGiant days 3 Eridanus Epsilon 10.4 3.73 K2V 5180 0.85 / ? b 0.86 0.6 3.3 2502.1 dys Eridani (6.85 yrs) 10.4 3.73 K2V 5180 0.85 / ? c 0.1 0.3 40 260 yrs 4 Andromeda Upsilon 43.9 4.09 F8V 6200 1.3 / 1.6 b 0.71 0.04 0.06 4.6 days Andromedae c 2.11 0.23 0.83 242 days d 4.61 0.36 2.5 1266.6 dys 5 Bootes tau Bootes 49 4.5 F7V 6300 1.2 / 1.2 b 3.87 0.018 0.046 3.3 days 6 Virgo 70 Virginis 72 5 G5V 5200 0.95 / 1.9 b 6.6 0.4 0.43 116.6 days 7 Cetus HD 19994 73 5.07 F8V 6160 1.35 / ? b 2 0.2 1.3 454 days 8 Ursa Major 47 Ursae 43 5.1 G0V 5600 1.03 / 1 b 2.41 0.096 2.1 1095 days Majoris c 0.76 0.1 3.73 2594 days Constell- Star data / Star Solar Eccent Avg Dist Orbital Distance Appar- Planet ation Spec Type Surface Masses / ricity from Period Host Star from Earth ent Planets Mass Temp (K) Solar Star (light-years) Mag. (Jupiter=1) est. Radii (AU) 9 Corona rho Coronae 55 5.4 G2V 5700 1 / ? b 1.1 0.028 0.23 39.65 dys Borealis Borealis 10 Pegasus 51 Pegasi 48 5.5 G2.5V 5770 1.05 / 1.4 b 0.47 0 0.05 4.23 dys 11 Ursa Major HD 89744 130 5.7 F7V 6166 1.4 / ? b 7.2 0.7 0.88 256 dys 12 Cygnus Gliese 777A 51.8 5.71 b 1.15 13 Orion HD 38529 138 5.94 G4 5800 1.39 ? b 0.77 0.312 0.12 14.3 dys c 11.3 0.34 3.51 2189 dys 14 Cancer 55 Cancri 44 5.95 G8V 5570 1.03 / ? b 0.84 0.03 0.115 14.65 dys c 0.21 0.34 0.24 44.26 dys d 4 0.16 5.9 2785 dys

References: http://planetquest.jpl.nasa.gov/ http://www.extrasolar.net/mainframes.html http://www.solstation.com/stars2/ups-and.htm