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FY08 Technical Papers by GSMTPO Staff
AURA/NOAO ANNUAL REPORT FY 2008 Submitted to the National Science Foundation July 23, 2008 Revised as Complete and Submitted December 23, 2008 NGC 660, ~13 Mpc from the Earth, is a peculiar, polar ring galaxy that resulted from two galaxies colliding. It consists of a nearly edge-on disk and a strongly warped outer disk. Image Credit: T.A. Rector/University of Alaska, Anchorage NATIONAL OPTICAL ASTRONOMY OBSERVATORY NOAO ANNUAL REPORT FY 2008 Submitted to the National Science Foundation December 23, 2008 TABLE OF CONTENTS EXECUTIVE SUMMARY ............................................................................................................................. 1 1 SCIENTIFIC ACTIVITIES AND FINDINGS ..................................................................................... 2 1.1 Cerro Tololo Inter-American Observatory...................................................................................... 2 The Once and Future Supernova η Carinae...................................................................................................... 2 A Stellar Merger and a Missing White Dwarf.................................................................................................. 3 Imaging the COSMOS...................................................................................................................................... 3 The Hubble Constant from a Gravitational Lens.............................................................................................. 4 A New Dwarf Nova in the Period Gap............................................................................................................ -
Where Are the Distant Worlds? Star Maps
W here Are the Distant Worlds? Star Maps Abo ut the Activity Whe re are the distant worlds in the night sky? Use a star map to find constellations and to identify stars with extrasolar planets. (Northern Hemisphere only, naked eye) Topics Covered • How to find Constellations • Where we have found planets around other stars Participants Adults, teens, families with children 8 years 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 Sun? 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. -
A Temperate Rocky Super-Earth Transiting a Nearby Cool Star Jason A
LETTER doi:10.1038/nature22055 A temperate rocky super-Earth transiting a nearby cool star Jason A. Dittmann1, Jonathan M. Irwin1, David Charbonneau1, Xavier Bonfils2,3, Nicola Astudillo-Defru4, Raphaëlle D. Haywood1, Zachory K. Berta-Thompson5, Elisabeth R. Newton6, Joseph E. Rodriguez1, Jennifer G. Winters1, Thiam-Guan Tan7, Jose-Manuel Almenara2,3,4, François Bouchy8, Xavier Delfosse2,3, Thierry Forveille2,3, Christophe Lovis4, Felipe Murgas2,3,9, Francesco Pepe4, Nuno C. Santos10,11, Stephane Udry4, Anaël Wünsche2,3, Gilbert A. Esquerdo1, David W. Latham1 & Courtney D. Dressing12 15 16,17 M dwarf stars, which have masses less than 60 per cent that of Ks magnitude and empirically determined stellar relationships , the Sun, make up 75 per cent of the population of the stars in the we estimate the stellar mass to be 14.6% that of the Sun and the stellar Galaxy1. The atmospheres of orbiting Earth-sized planets are radius to be 18.6% that of the Sun. We estimate the metal content of the observationally accessible via transmission spectroscopy when star to be approximately half that of the Sun ([Fe/H] = −0.24 ± 0.10; the planets pass in front of these stars2,3. Statistical results suggest 1σ error), and we measure the rotational period of the star to be that the nearest transiting Earth-sized planet in the liquid-water, 131 days from our long-term photometric monitoring (see Methods). habitable zone of an M dwarf star is probably around 10.5 parsecs On 15 September 2014 ut, MEarth-South identified a potential away4. A temperate planet has been discovered orbiting Proxima transit in progress around LHS 1140, and automatically commenced Centauri, the closest M dwarf5, but it probably does not transit and high-cadence follow-up observations (see Extended Data Fig. -
Naming the Extrasolar Planets
Naming the extrasolar planets W. Lyra Max Planck Institute for Astronomy, K¨onigstuhl 17, 69177, Heidelberg, Germany [email protected] Abstract and OGLE-TR-182 b, which does not help educators convey the message that these planets are quite similar to Jupiter. Extrasolar planets are not named and are referred to only In stark contrast, the sentence“planet Apollo is a gas giant by their assigned scientific designation. The reason given like Jupiter” is heavily - yet invisibly - coated with Coper- by the IAU to not name the planets is that it is consid- nicanism. ered impractical as planets are expected to be common. I One reason given by the IAU for not considering naming advance some reasons as to why this logic is flawed, and sug- the extrasolar planets is that it is a task deemed impractical. gest names for the 403 extrasolar planet candidates known One source is quoted as having said “if planets are found to as of Oct 2009. The names follow a scheme of association occur very frequently in the Universe, a system of individual with the constellation that the host star pertains to, and names for planets might well rapidly be found equally im- therefore are mostly drawn from Roman-Greek mythology. practicable as it is for stars, as planet discoveries progress.” Other mythologies may also be used given that a suitable 1. This leads to a second argument. It is indeed impractical association is established. to name all stars. But some stars are named nonetheless. In fact, all other classes of astronomical bodies are named. -
Binocular Double Star Logbook
Astronomical League Binocular Double Star Club Logbook 1 Table of Contents Alpha Cassiopeiae 3 14 Canis Minoris Sh 251 (Oph) Psi 1 Piscium* F Hydrae Psi 1 & 2 Draconis* 37 Ceti Iota Cancri* 10 Σ2273 (Dra) Phi Cassiopeiae 27 Hydrae 40 & 41 Draconis* 93 (Rho) & 94 Piscium Tau 1 Hydrae 67 Ophiuchi 17 Chi Ceti 35 & 36 (Zeta) Leonis 39 Draconis 56 Andromedae 4 42 Leonis Minoris Epsilon 1 & 2 Lyrae* (U) 14 Arietis Σ1474 (Hya) Zeta 1 & 2 Lyrae* 59 Andromedae Alpha Ursae Majoris 11 Beta Lyrae* 15 Trianguli Delta Leonis Delta 1 & 2 Lyrae 33 Arietis 83 Leonis Theta Serpentis* 18 19 Tauri Tau Leonis 15 Aquilae 21 & 22 Tauri 5 93 Leonis OΣΣ178 (Aql) Eta Tauri 65 Ursae Majoris 28 Aquilae Phi Tauri 67 Ursae Majoris 12 6 (Alpha) & 8 Vul 62 Tauri 12 Comae Berenices Beta Cygni* Kappa 1 & 2 Tauri 17 Comae Berenices Epsilon Sagittae 19 Theta 1 & 2 Tauri 5 (Kappa) & 6 Draconis 54 Sagittarii 57 Persei 6 32 Camelopardalis* 16 Cygni 88 Tauri Σ1740 (Vir) 57 Aquilae Sigma 1 & 2 Tauri 79 (Zeta) & 80 Ursae Maj* 13 15 Sagittae Tau Tauri 70 Virginis Theta Sagittae 62 Eridani Iota Bootis* O1 (30 & 31) Cyg* 20 Beta Camelopardalis Σ1850 (Boo) 29 Cygni 11 & 12 Camelopardalis 7 Alpha Librae* Alpha 1 & 2 Capricorni* Delta Orionis* Delta Bootis* Beta 1 & 2 Capricorni* 42 & 45 Orionis Mu 1 & 2 Bootis* 14 75 Draconis Theta 2 Orionis* Omega 1 & 2 Scorpii Rho Capricorni Gamma Leporis* Kappa Herculis Omicron Capricorni 21 35 Camelopardalis ?? Nu Scorpii S 752 (Delphinus) 5 Lyncis 8 Nu 1 & 2 Coronae Borealis 48 Cygni Nu Geminorum Rho Ophiuchi 61 Cygni* 20 Geminorum 16 & 17 Draconis* 15 5 (Gamma) & 6 Equulei Zeta Geminorum 36 & 37 Herculis 79 Cygni h 3945 (CMa) Mu 1 & 2 Scorpii Mu Cygni 22 19 Lyncis* Zeta 1 & 2 Scorpii Epsilon Pegasi* Eta Canis Majoris 9 Σ133 (Her) Pi 1 & 2 Pegasi Δ 47 (CMa) 36 Ophiuchi* 33 Pegasi 64 & 65 Geminorum Nu 1 & 2 Draconis* 16 35 Pegasi Knt 4 (Pup) 53 Ophiuchi Delta Cephei* (U) The 28 stars with asterisks are also required for the regular AL Double Star Club. -
To Trappist-1 RAIR Golaith Ship
Mission Profile Navigator 10:07 AM - 12/2/2018 page 1 of 10 Interstellar Mission Profile for SGC Navigator - Report - Printable ver 4.3 Start: omicron 2 40 Eri (Star Trek Vulcan home star) (HD Dest: Trappist-1 2Mass J23062928-0502285 in Aquarii [X -9.150] [Y - 26965) (Keid) (HIP 19849) in Eridani [X 14.437] [Y - 38.296] [Z -3.452] 7.102] [Z -2.167] Rendezvous Earth date arrival: Tuesday, December 8, 2420 Ship Type: RAIR Golaith Ship date arrival: Tuesday, January 8, 2419 Type 2: Rendezvous with a coasting leg ( Top speed is reached before mid-point ) Start Position: Start Date: 2-December-2018 Star System omicron 2 40 Eri (Star Trek Vulcan home star) (HD 26965) (Keid) Earth Polar Primary Star: (HIP 19849) RA hours: inactive Type: K0 V Planets: 1e RA min: inactive Binary: B, C, b RA sec: inactive Type: M4.5V, DA2.9 dec. degrees inactive Rank from Earth: 69 Abs Mag.: 5.915956445 dec. minutes inactive dec. seconds inactive Galactic SGC Stats Distance l/y Sector X Y Z Earth to Start Position: 16.2346953 Kappa 14.43696547 -7.10221947 -2.16744969 Destination Arrival Date (Earth time): 8-December-2420 Star System Earth Polar Trappist-1 2Mass J23062928-0502285 Primary Star: RA hours: inactive Type: M8V Planets 4, 3e RA min: inactive Binary: B C RA sec: inactive Type: 0 dec. degrees inactive Rank from Earth 679 Abs Mag.: 18.4 dec. minutes inactive Course Headings SGC decimal dec. seconds inactive RA: (0 <360) 232.905748 dec: (0-180) 91.8817176 Galactic SGC Sector X Y Z Destination: Apparent position | Start of Mission Omega -9.09279603 -38.2336637 -3.46695345 Destination: Real position | Start of Mission Omega -9.09548281 -38.2366036 -3.46626331 Destination: Real position | End of Mission Omega -9.14988933 -38.2961361 -3.45228825 Shifts in distances of Destination Distance l/y X Y Z Change in Apparent vs. -
ESO Annual Report 2004 ESO Annual Report 2004 Presented to the Council by the Director General Dr
ESO Annual Report 2004 ESO Annual Report 2004 presented to the Council by the Director General Dr. Catherine Cesarsky View of La Silla from the 3.6-m telescope. ESO is the foremost intergovernmental European Science and Technology organi- sation in the field of ground-based as- trophysics. It is supported by eleven coun- tries: Belgium, Denmark, France, Finland, Germany, Italy, the Netherlands, Portugal, Sweden, Switzerland and the United Kingdom. Created in 1962, ESO provides state-of- the-art research facilities to European astronomers and astrophysicists. In pur- suit of this task, ESO’s activities cover a wide spectrum including the design and construction of world-class ground-based observational facilities for the member- state scientists, large telescope projects, design of innovative scientific instruments, developing new and advanced techno- logies, furthering European co-operation and carrying out European educational programmes. ESO operates at three sites in the Ataca- ma desert region of Chile. The first site The VLT is a most unusual telescope, is at La Silla, a mountain 600 km north of based on the latest technology. It is not Santiago de Chile, at 2 400 m altitude. just one, but an array of 4 telescopes, It is equipped with several optical tele- each with a main mirror of 8.2-m diame- scopes with mirror diameters of up to ter. With one such telescope, images 3.6-metres. The 3.5-m New Technology of celestial objects as faint as magnitude Telescope (NTT) was the first in the 30 have been obtained in a one-hour ex- world to have a computer-controlled main posure. -
Double and Multiple Star Measurements in the Northern Sky with a 10” Newtonian and a Fast CCD Camera in 2006 Through 2009
Vol. 6 No. 3 July 1, 2010 Journal of Double Star Observations Page 180 Double and Multiple Star Measurements in the Northern Sky with a 10” Newtonian and a Fast CCD Camera in 2006 through 2009 Rainer Anton Altenholz/Kiel, Germany e-mail: rainer.anton”at”ki.comcity.de Abstract: Using a 10” Newtonian and a fast CCD camera, recordings of double and multiple stars were made at high frame rates with a notebook computer. From superpositions of “lucky images”, measurements of 139 systems were obtained and compared with literature data. B/w and color images of some noteworthy systems are also presented. mented double stars, as will be described in the next Introduction section. Generally, I used a red filter to cope with By using the technique of “lucky imaging”, seeing chromatic aberration of the Barlow lens, as well as to effects can strongly be reduced, and not only the reso- reduce the atmospheric spectrum. For systems with lution of a given telescope can be pushed to its limits, pronounced color contrast, I also made recordings but also the accuracy of position measurements can be with near-IR, green and blue filters in order to pro- better than this by about one order of magnitude. This duce composite images. This setup was the same as I has already been demonstrated in earlier papers in used with telescopes under the southern sky, and as I this journal [1-3]. Standard deviations of separation have described previously [1-3]. Exposure times varied measurements of less than +/- 0.05 msec were rou- between 0.5 msec and 100 msec, depending on the tinely obtained with telescopes of 40 or 50 cm aper- star brightness, and on the seeing. -
August 2014 BRAS Newsletter
August, 2014 Next Meeting Augustth, 7:00 PM at HRPO M27, The Dumbbell Nebula-Taken at HRPO by Ben Toman What's In This Issue? President's Message Final Outreach Message from Dr. Trevor McGuire Astro Short-Milky Way: Cosmic Cannibal Message from the HRPO Globe At Night Recent BRAS Forum Entries Observing Notes from John Nagle President's Message Summertime in Louisiana isn’t always the best time to observe the sky. Even on nights with no cloud cover, there always seems to be a haze of water vapor or dust that washes out the dimmer things we want to see. However, we often get those still nights that are great for viewing the planets. At least we have that. And we always have the Sun. Speaking of that, we are getting close to selling enough tickets to raffle the Lunt 35mm solar telescope. Once we have sold enough tickets we will make an announcement to draw for the winner at the next BRAS meeting. In the meantime, we have lots of new (actually inherited) books to raffle, a couple of Messier and Caldwell cards, and a few other odd items. So, until we raffle the solar scope, there will be plenty to choose from between now and then. On a happy/sad note, we are losing one of our more active BRAS members to his new career. Vice President Muralidar Chakravarthi will be moving to Florida in mid-August for a promotion with his company. The August meeting may be the last one we may see him for quite a while. -
The Observer's Handbook for 1918
T he O bse r v e r s H andbook FOR 1918 P ublished By The Royal Astron o m ic a l Society of Canada E d i t e d b y C. A . CHANT TENTH YEAR OF PUBLICATION TORONTO 198 C o l l e g e S t r e e t Pr i n t e d f o r t h e S o c i e t y 1918 CALENDAR 1918 JANUARY FEBRUARY MARCH APRIL MAY JUNE JULY AUGUST SEPTEMBER OCTOBER NOVEMBER DECEMBER T he O bservers H andbook FOR 1918 P ublished By T he R oyal As tronomical Society of Canada E d i t e d b y C. A. CHANT TENTH YEAR OF PUBLICATION T O R O N T O 198 C o l l e g e S t r e e t Pr i n t e d f o r t h e S o c i e t y 1918 CONTENTS Preface - - - 2 Anniversaries and Festivals - - - 3 Occultation of Fixed Stars by the Moon - - 3 Ephemeris of the Sun . - - 4 The Sky and Astronomical Phenomena for each Month - 6 Eclipses, etc., of Jupiter’s Satellites - - - 30 Eclipses of Sun and Moon in 1918 - - 32 PREFACE In order to lower the expense of publication the H a n d b o o k for this year has been reduced to its present size. This reduction has been accomplished by omitting those portions which are not much altered from year to year. They include the following :— Symbols and abbreviations. -
Research Paper in Nature
LETTER doi:10.1038/nature22055 1 A temperate rocky super-Earth transiting a nearby cool star Jason A. Dittmann1, Jonathan M. Irwin1, David Charbonneau1, Xavier Bonfils2,3, Nicola Astudillo-Defru4, Raphaëlle D. Haywood1, Zachory K. Berta-Thompson5, Elisabeth R. Newton6, Joseph E. Rodriguez1, Jennifer G. Winters1, Thiam-Guan Tan7, Jose-Manuel Almenara2,3,4, François Bouchy8, Xavier Delfosse2,3, Thierry Forveille2,3, Christophe Lovis4, Felipe Murgas2,3,9, Francesco Pepe4, Nuno C. Santos10,11, Stephane Udry4, Anaël Wünsche2,3, Gilbert A. Esquerdo1, David W. Latham1 & Courtney D. Dressing12 15 16,17 M dwarf stars, which have masses less than 60 per cent that of Ks magnitude and empirically determined stellar relationships , the Sun, make up 75 per cent of the population of the stars in the we estimate the stellar mass to be 14.6% that of the Sun and the stellar Galaxy1. The atmospheres of orbiting Earth-sized planets are radius to be 18.6% that of the Sun. We estimate the metal content of the observationally accessible via transmission spectroscopy when star to be approximately half that of the Sun ([Fe/H] = −0.24 ± 0.10; all the planets pass in front of these stars2,3. Statistical results suggest errors given in the text are 1σ), and we measure the rotational period that the nearest transiting Earth-sized planet in the liquid-water, of the star to be 131 days from our long-term photometric monitoring habitable zone of an M dwarf star is probably around 10.5 parsecs (see Methods). away4. A temperate planet has been discovered orbiting Proxima On 15 September 2014 ut, MEarth-South identified a potential Centauri, the closest M dwarf5, but it probably does not transit and transit in progress around LHS 1140, and automatically commenced its true mass is unknown. -
CIRCULAR No. 164 (FEBRUARY 2008)
INTERNATIONAL ASTRONOMICAL UNION COMMISSION 26 (DOUBLE STARS) INFORMATION CIRCULAR No. 164 (FEBRUARY 2008) NEW ORBITS ADS Name P T e (2000) 2008 Author(s) ®2000± n a i ! Last ob. 2009 277 A 647 372y71 1876.01 0.292 39±4 101±8 00067 SCARDIA 00205+4531 0.9659 000947 122±0 136±8 2006.036 100.8 0.67 et al. (**) - HDS 102 46.76 2015.92 0.730 38.6 103.5 0.137 CVETKOVIC 00469+4339 7.6995 0.229 118.7 67.2 2001.7609 96.2 0.133 1763 EGG 2 Aa 109.86 2094.27 0.540 132.6 173.2 0.225 CVETKOVIC 02186+4017 3.2770 0.344 66.0 288.7 1999.8313 175.9 0.222 4396 A 2657 60.43 1964.86 0.466 20.1 224.2 0.172 DOCOBO 05482+0137 5.9573 0.137 18.9 350.4 1999.8833 227.5 0.167 & LING - FIN 382 28.28 1992.42 0.303 179.9 330.1 0.185 CVETKOVIC 05542-2909 12.7298 0.218 113.3 45.1 1993.0951 322.4 0.161 - RST 4816 28.46 2018.86 0.647 102.3 112.3 0.394 CVETKOVIC 06362-3608 12.6486 0.275 110.3 140.9 1996.1807 110.6 0.393 - FIN 322 59.59 1967.31 0.235 59.9 305.4 0.085 CVETKOVIC 06493-0216 6.0418 0.145 118.6 237.8 1997.1256 297.5 0.088 6526 A 1580 257. 2015.15 0.178 107.8 289.4 0.258 DOCOBO 08017-0836 1.4008 0.313 55.3 197.3 2003.9604 290.5 0.258 & LING - FIN 366 85.35 1965.84 0.609 149.4 36.1 0.135 CVETKOVIC 11495-4604 4.2178 0.269 73.3 83.6 1995.1027 40.0 0.132 - BLA 3 4.212 2009.443 0.569 15.3 29.9 0.147 DOCOBO 16171+5516 85.4701 0.129 107.7 119.4 2001.2711 10.7 0.099 et al.