Photo of the Year by PAS Member Barry Simon Next PAS General

Total Page:16

File Type:pdf, Size:1020Kb

Photo of the Year by PAS Member Barry Simon Next PAS General PAS-Times The newsletter of the Pontchartrain Astronomy Society January 2019 visit us online www.astronola.org Volume 60, Issue 1 Photo of the Year Next PAS General Meeting by PAS member Barry Simon Summer Milky Way with Friday, Jan. 19th,2019 at 7:30pm Dark Horse Nebula, UNO Science Bldg. Room 1001 Rho Ophiuchus Nebulosity, M4 and Antares PAS Times Volume 60, Issue 1 Page 2 President’s Message outreach for the public. We will try to PAS Officers for 2019 By: Bill Johnson address several basic skills for the beginners, and a few advanced topics for the our Greetings to all and welcome to 2019! seasoned members. If you have a topic you President: Happy New year to all the PAS members would like to see covered at one of our Bill Johnson and friends. meetings, or if you would like to present a [email protected] subject, please contact an officer and we will Yes, we are now in a New Year, with lots of do our best to address it for you. 1st Vice-President: promise for good things to come. New Year’s Mike Danielson resolutions may include losing weight, giving As a final request to start of the new year, Program Chairman up smoking, and a host of other bad habits I’m asking all members to commit to attending [email protected] that we all seem to have for one reason or one more event than you did last year. One another. My resolution is to get out just a more meeting, one more outreach, one more little more than last year and do some event. And bring a guest- someone you know 2nd Vice-President: observing. Yes, we all attend the outreaches, who may have an interest, but is a bit unsure Kent Birkle and we assist others where we can, but how as to how they will fit in. Perhaps a neighbor PAS-Times Editor about we take more time just for ourselves, or family member that got a telescope for [email protected] and each other, and do some casual Christmas. We will do our best to welcome observing for those objects we have on the them into the PAS. Having the membership Treasurer: To–See list, but just have not spent the time promote astronomy is one of our core mission John Scholl to really LOOK at them. Whether it’s in your objectives. We can never have too many [email protected] own backyard, or you head out to the people show up, and it makes it much easier SPMOS site, we all need to get out and on everyone when there are more people to Secretary: enjoy the wonderful offerings of the heavens assist. If you’re a new member, come out and Nanette Johnson above us. see what is going on. You don’t need to be an expert, you just need to be there. You Archivist Now, you may ask, with all the cloudy nights never know what you will learn. [email protected] in December, how could I see anything! The answer is to plan and be ready. As I write Reminder to all that the annual dues are now SPMOS: this on Sunday January 6th, we had three delinquent, and the combination to SPMOS Ron Marella days of gorgeous skies, and no moon. Did will be changed in February. If you have not [email protected] anyone else take advantage of what were yet paid, please get your dues in as soon as some of the best conditions in quite some possible. You can mail to our Treasurer, John Community Outreach: time? I hope so, and hope you will tell us Scholl, pay at the January meeting, or pay Jerry LaBauve about what you were able to see at the next by credit card on the AstroNola.org website. [email protected] meeting. Winter skies are considered to be And while on the site, how about voting for the best time to observe, as the seeing is the Picture of the Month. Anyone can submit, better due to the lower temperature and and it will be available for voting for three ALCOR (Astronomy League): humidity. Lots of favorites are up, and a few months. Show us what your favorite picture is. Jerry LaBauve hard to see targets tend to be a bit easier to [email protected] find in the cooler winter nights. Our next meeting will be held on Friday, January 18th, at 7:30PM at UNO Science We held our annual Christmas party in Building, and the presentation will be December, and all who attended seems to “Globular Clusters - What are they, Where really enjoy themselves. A big thanks to the are they and how to best observe them” by Anonymous Person(s) who picked up the bar our own PAS member Barry Simon. I hope to tab for the evening. I’m sure all the members see all of you at the next meeting. Don’t are very grateful for your generosity. forget to bring a guest! As we move into 2019, we have quite a few Bill Johnson events planned for the members, as well as PAS President 2019 Howard Marrs sent in this photo of the group that came out to SPMOS on Saturday January 5th. Good time were had by all and viewing was the best many of us has seen in a good while. It was a great group and hopefully mother nature will permit more these impromtu star parties going forward. PAS-Times Volume 60, Issue 1 Page 3 Secretary’s Report December 2018 General Meeting By: Nanette Johnson The December general membership meeting of the Pontchartrain Astronomy Society was held on December 14 at Porter & Luke's restaurant. Bill opened the meeting by thanking all who came for participating in the annual PAS Christmas party. Bill recapped his first year as PAS President by saying he has learned a lot and thanked those who helped him this past year. Bill mentioned the re-dedication of the SPMOS bunkhouse and thanked Ron Marcella and Norm Stevens for their hard work and dedication to the project and all other PAS members who have helped out with the renovations at SPMOS. Bill went on to mention the club field trip to LIGO and the upgrading of the PAS website. Bill thanked webmaster Chad Powell for the upgrades and his continuing work on the PAS website. Also mentioned were the monthly photo contest and the PAS Twitter account, both new this year and thanked Nanette Johnson for her work in bringing these new features to PAS members. Bill then went on to announce some of his plans and hopes for the new year 2019. Observing basics for those who are still learning, a club day at the Infinity Space Center, a joint event with the Baton Rouge Astronomy club and more and new features added to the PAS website are all in the planning stages for 2019. Awards were presented to the following club members: Moon Over Madisonville - awarded to Bill Davis for his work on the International Observe the Moon Night event. Not Lost in the Dark Award - awarded to Barbara Reed for finding her way to SPMOS for the first time in the dark and by herself with no help from anyone. Chalk Talk Award - Ralph Junius for using more chalk in a presentation than anyone else ever. Raffle Ticket King Award - Byron and Linda Landry for the most raffle tickets ever purchased at the PAS Picnic. Step Up to the Plate award - Mike Danielson for volunteering to accept the nomination to 1st VP for 2019. Thanks Mike! President's Award - Ron Marcella and Nanette Johnson. Ron for his untiring work as SPMOS manager improving the site 1000% in the last two years. Nanette for going way above and beyond her duties as secretary by initiating and running the Photo of the Month contest, the PAS Twitter account, promoting PAS at the outreaches with an information table, creating the photo backdrop used at PAS outreaches and handling the initial contact of prospective members, and the general public through the website. A free new member only raffle was held with the winner receiving a copy of the Universe award workbook from ALCOR. The raffle was held with many prizes including a telescope, a set of lenses, and several storage cases. Bill closed the meeting by again thanking everyone who helped him in his first year and mentioned each officer by name and their contributions to the club in 2018. Next meeting Fri. Jan 18, 2019. Meeting adjourned. PAS-Times Volume 60, Issue 1 Page 4 PAS Holiday Party 2018 PAS-Times Volume 60, Issue 1 Page 5 PAS-Times Volume 60, Issue 1 Page 6 January's Evening Eclipse and Morning Conjunctions By David Prosper Observers in the Americas are treated to an evening total lunar eclipse this month. Early risers can spot some striking morning conjunctions between Venus, Jupiter, and the Moon late in January. A total lunar eclipse will occur on January 20th and be visible from start to finish for observers located in North and South America. This eclipse might be a treat for folks with early bedtimes; western observers can even watch the whole event before midnight. Lunar eclipses takes several hours to complete and are at their most impressive during total eclipse, or totality, when the Moon is completely enveloped by the umbra, the darkest part of Earth's shadow. During totality the color of the Moon can change to a bright orange or red thanks to the sunlight bending through the Earth's atmosphere - the same reason we see pink sunsets.
Recommended publications
  • SEPTEMBER 2014 OT H E D Ebn V E R S E R V ESEPTEMBERR 2014
    THE DENVER OBSERVER SEPTEMBER 2014 OT h e D eBn v e r S E R V ESEPTEMBERR 2014 FROM THE INSIDE LOOKING OUT Calendar Taken on July 25th in San Luis State Park near the Great Sand Dunes in Colorado, Jeff made this image of the Milky Way during an overnight camping stop on the way to Santa Fe, NM. It was taken with a Canon 2............................. First quarter moon 60D camera, an EFS 15-85 lens, using an iOptron SkyTracker. It is a single frame, with no stacking or dark/ 8.......................................... Full moon bias frames, at ISO 1600 for two minutes. Visible in this south-facing photograph is Sagittarius, and the 14............ Aldebaran 1.4˚ south of moon Dark Horse Nebula inside of the Milky Way. He processed the image in Adobe Lightroom. Image © Jeff Tropeano 15............................ Last quarter moon 22........................... Autumnal Equinox 24........................................ New moon Inside the Observer SEPTEMBER SKIES by Dennis Cochran ygnus the Swan dives onto center stage this other famous deep-sky object is the Veil Nebula, President’s Message....................... 2 C month, almost overhead. Leading the descent also known as the Cygnus Loop, a supernova rem- is the nose of the swan, the star known as nant so large that its separate arcs were known Society Directory.......................... 2 Albireo, a beautiful multi-colored double. One and named before it was found to be one wide Schedule of Events......................... 2 wonders if Albireo has any planets from which to wisp that came out of a single star. The Veil is see the pair up-close.
    [Show full text]
  • E. E. Barnard and His Dark Nebula!
    Visible throughout our galaxy are clouds of interstellar matter, thin but widespread wisps of gas and dust. Some of the stars near nebulae are often very massive and their high-energy radiation can excite the gas of the nebula to shine; such nebula is called emission nebula. If the stars are dimmer or further away, their light is reflected by the dust in the nebula and can be seen as reflection nebula. Some nebulae are only visible by the absorption of the light from objects behind them. These are called dark nebula Edward Emerson Barnard was a professor of astronomy at the University of Chicago Yerkes Observatory. As a pioneer in astrophotography, he cataloged a series of dark nebula of the Milky Way. Through this work of studying the structure of the Milky Way, Barnard discovered that certain dark regions of our galaxy are actually clouds of gas and dust that obscured the more distant stars in the background. Today, we’re going to look-back on his life and accomplishments. We’ll also review several of my observations of his dark nebula. Barnard’s Early Years: A: Childhood, Work, and Stargazing Edward Emerson Barnard was born on December 16th, 1857 in Nashville Tennessee, at the cusp of the Civil War. His mother, Elizabeth, (at the age of 42), had moved the family from Cincinnati to Nashville a few months prior to Edward’s birth, when his father, Reuben Barnard had passed away. The family lived in near poverty, with Elizabeth as the sole provider working several small jobs, the most profitable being that of her making wax flowers, which she had a skill at creating.
    [Show full text]
  • Watch This Space for July 2014
    Watch this Space for July 2014 Planet Watch Moon Phases The Planets on view this month are: New Moon First Quarter Not visible this month 26 / 07 / 14 05 / 07 / 14 Mercury: Venus: At mag - 3.8 rises at 3am and is low in the Full Moon Last Quarter dawn twilight Mars: In Virgo at mag +0.4, sets around midnight 12 / 07 / 14 19 / 07 / 14 Jupiter: Not visible this month Saturn: In Libra at mag +0.6, sets around 1am The Sun Uranus: In Pisces at mag +5.8, rises around midnight Rises: 05:08, 15th July, Sets: 21:12 Neptune: In Aquarius at mag +7.8, rises around 11pm Constellation of the Month Ophiuchus — The Serpent Bearer 11th in size of the 88 constellations, Ophiuchus is a large but generally faint con- stellation. It is associated with the figure of Asclepius, the famous healer in Greek mythology, whose snake-entwined staff remains a symbol of medicine today. Notable stars: Oph - (Rasalhague) Brightest star in the constellation at mag 2.1. A very fast rotating star (89% of breakup speed) its equatorial radius is 20% larger than its polar radius, resulting in a polar temperature 2000K higher than at the equator. Barnard’s Star Mag 9.5 is the fourth closest star to our sun at 6 ly distance. It has the largest proper motion known at 10.3” per year and will be closest to the Sun at about 3.75l y by the year 9,800. Constellation map credit: Torsten Bronger Some Interesting Objects: Ophiuchus contains 39 NGC objects, including 22 globular clus- ters (7 of which are Messier objects) and 3 planetary nebulae.
    [Show full text]
  • Α. I. First Astronomer to Suggest That the Earth Is Not the Center of The
    Α. i. first astronomer to suggest that the Earth is not the center of the Universe? [1] - 2 1.Galileo 2.Aristarchus 3.Copernicus 4.Cassini 5.Zhang Heng 6.al-Biruni 7.Kepler 8.Brahe 9.Aryabhatta ii. The obliquity of the ecliptic in degrees. (one decimal) [3] - 234 iii. The first known and brightest quasar is 3C__. [3] - 273 iv. A relativistic jet moves at 0.83c. If no Doppler shift is observed, how many degrees is the angle between the jet and the line of sight, assuming that the source has negligible velocity? (integer) [3] - 122 v. This nebula is NGC__. [4] – 7000 vi. Choose the names of the layers A, B and C of the Jovian atmosphere, beginning from Layer A. [3] - 195 1.Troposphere 2.Magnetosphere 3.Ionosphere 4.Ozone layer 5.Thermosphere 6.Lithosphere 7.Chromosphere 8.Photosphere 9. Stratosphere B. i. How many AU is one parsec? (integer) [6] - 206265 ii. Jupiter-Sun-Trojan Asteroids angle (degrees). (integer) [2] - 60 iii. This nebula is M__. [2] - 57 th o iv. On the 25 of August, at a latitude of φ>0 and longitude λL =37 W (time zone = GMT – 2hrs), we observe a star with Declination (δ) such that φ+δ=90, and Right Ascension α=67.5ο. What is the local civil time at the hh:mm during the lower culmination of the star? It is given that at 00:00hrs on the 24th of August, hour angle of vernal equinox is 21h 58m. [4] - 1857 v. During a Meteor Shower, in a radius of 100km, an observer counted 600 meteors/min.
    [Show full text]
  • Music Inspired by Astronomy, Organized by Topic an Annotated Listing by Andrew Fraknoi
    Music Inspired by Astronomy, Organized by Topic An Annotated Listing by Andrew Fraknoi © copyright 2019 by Andrew Fraknoi. All rights reserved. Used with permission. Borresen: At Uranienborg Cage: Atlas Eclipticalis Glass: Orion Connections between astronomy and music have been proposed since the time of the ancient Greeks. This annotated listing of both classical and popular music inspired by astronomy restricts itself to music that has connections to real science -- not just an astronomical term or two in the title or lyrics. For example, we do not list Gustav Holst’s popular symphonic suite The Planets, because it draws its inspiration from the astrological, and not astronomical, characteristics of the worlds in the solar system. Similarly, songs like Soundgarden’s “Black Hole Sun” or the Beatles’ “Across the Universe” just don’t contain enough serious astronomy to make it into our guide. When possible, we give links to a CD and a YouTube recording or explanation for each piece. The music is arranged in categories by astronomical topic, from asteroids to Venus. Additions to this list are most welcome (as long as they follow the above guidelines); please send them to the author at: fraknoi {at} fhda {dot} edu Table of Contents Asteroids Meteors and Meteorites Astronomers Moon Astronomy in General Nebulae Black Holes Physics Related to Astronomy Calendar, Time, Seasons Planets (in General) Comets Pluto Constellations Saturn Cosmology SETI (Search for Intelligent Life Out There) Earth Sky Phenomena Eclipses Space Travel Einstein Star Clusters Exoplanets Stars and Stellar Evolution Galaxies and Quasars Sun History of Astronomy Telescopes and Observatories Jupiter Venus Mars 1 Asteroids Coates, Gloria Among the Asteroids on At Midnight (on Tzadik).
    [Show full text]
  • Cosmography of OB Stars in the Solar Neighbourhood⋆
    A&A 584, A26 (2015) Astronomy DOI: 10.1051/0004-6361/201527058 & c ESO 2015 Astrophysics Cosmography of OB stars in the solar neighbourhood? H. Bouy1 and J. Alves2 1 Centro de Astrobiología, INTA-CSIC, Depto Astrofísica, ESAC Campus, PO Box 78, 28691 Villanueva de la Cañada, Madrid, Spain e-mail: [email protected] 2 Department of Astrophysics, University of Vienna, Türkenschanzstrasse 17, 1180 Vienna, Austria Received 25 July 2015 / Accepted 6 October 2015 ABSTRACT We construct a 3D map of the spatial density of OB stars within 500 pc from the Sun using the Hipparcos catalogue and find three large-scale stream-like structures that allow a new view on the solar neighbourhood. The spatial coherence of these blue streams and the monotonic age sequence over hundreds of parsecs suggest that they are made of young stars, similar to the young streams that are conspicuous in nearby spiral galaxies. The three streams are 1) the Scorpius to Canis Majoris stream, covering 350 pc and 65 Myr of star formation history; 2) the Vela stream, encompassing at least 150 pc and 25 Myr of star formation history; and 3) the Orion stream, including not only the well-known Orion OB1abcd associations, but also a large previously unreported foreground stellar group lying only 200 pc from the Sun. The map also reveals a remarkable and previously unknown nearby OB association, between the Orion stream and the Taurus molecular clouds, which might be responsible for the observed structure and star formation activity in this cloud complex. This new association also appears to be the birthplace of Betelgeuse, as indicated by the proximity and velocity of the red giant.
    [Show full text]
  • 250+ Deep-Sky Objects Visible with 7X35 Binoculars and the Naked-Eye
    6726 1 Scott N. Harrington 2nd edition September, 2018 2 To my family, Who were always understanding of my excursions under the stars. To the late Jack Horkheimer, a.k.a. Star Gazer, Whose television show kept this young astronomer inspired during those crucial first years. I’ll never stop “looking up”. And in memory of my dog Nell, who kept me company many long evenings – especially the one just before she passed away peacefully at the age of fifteen. I owe her a thanks for helping me with my observations by making this young astronomer feel safe at night. You will always be my favorite of our dogs. 3 Acknowledgements Below is a list of books that I read (most for the first time) in the last few years. They were all deeply influential in helping me discover many of the toughest objects that fill out my list. I would like to note that one I have not read, but greatly look forward to doing so, is Richard P. Wilds Bright & Dark Nebulae: An Observers Guide to Understanding the Clouds of the Milky Way Galaxy. Atlas of the Messier Objects by Ronald Stoyan The Backyard Astronomer’s Guide* by Terence Dickinson and Alan Dyer Cosmic Challenge – The Ultimate Observing List for Amateurs by Philip S. Harrington Deep-Sky Companions: The Caldwell Objects by Stephen James O’Meara Deep-Sky Companions: Hidden Treasures by Stephen James O'Meara Deep-Sky Companions: The Messier Objects by Stephen James O’Meara Deep-Sky Companions: The Secret Deep by Stephen James O’Meara Deep-Sky Wonders by Sue French Observing Handbook and Catalogue of Deep-Sky Objects by Christian B.
    [Show full text]
  • The COLOUR of CREATION Observing and Astrophotography Targets “At a Glance” Guide
    The COLOUR of CREATION observing and astrophotography targets “at a glance” guide. (Naked eye, binoculars, small and “monster” scopes) Dear fellow amateur astronomer. Please note - this is a work in progress – compiled from several sources - and undoubtedly WILL contain inaccuracies. It would therefor be HIGHLY appreciated if readers would be so kind as to forward ANY corrections and/ or additions (as the document is still obviously incomplete) to: [email protected]. The document will be updated/ revised/ expanded* on a regular basis, replacing the existing document on the ASSA Pretoria website, as well as on the website: coloursofcreation.co.za . This is by no means intended to be a complete nor an exhaustive listing, but rather an “at a glance guide” (2nd column), that will hopefully assist in choosing or eliminating certain objects in a specific constellation for further research, to determine suitability for observation or astrophotography. There is NO copy right - download at will. Warm regards. JohanM. *Edition 1: June 2016 (“Pre-Karoo Star Party version”). “To me, one of the wonders and lures of astronomy is observing a galaxy… realizing you are detecting ancient photons, emitted by billions of stars, reduced to a magnitude below naked eye detection…lying at a distance beyond comprehension...” ASSA 100. (Auke Slotegraaf). Messier objects. Apparent size: degrees, arc minutes, arc seconds. Interesting info. AKA’s. Emphasis, correction. Coordinates, location. Stars, star groups, etc. Variable stars. Double stars. (Only a small number included. “Colourful Ds. descriptions” taken from the book by Sissy Haas). Carbon star. C Asterisma. (Including many “Streicher” objects, taken from Asterism.
    [Show full text]
  • COM 2013 August
    Ophiuchus holds a huge snake, Serpens, in both hands as shown in the Atlas Coelestis of John Flamsteed (1729). Serpens is unique in being divided into two halves. Ophiuchus holding the serpent, Serpens, as depicted in Urania's Mirror, a set of constellation cards published in London c.1825 Mythology of Serpentarius OPHIUCHUS, The Serpent Holder, is associated with Aescupalius, the noted healer of Greek legend. His mother Coronis was courted by the god Apollo and she eventually became pregnant. However, this did not stop her falling for a mere mortal, Ischys by name. The god had left a white crow to keep watch on Coronis and, when it reported her infidelity, Apollo was so furious that it had not immediately pecked out Ischys's eyes that he cursed the bird and turned it black. When Artemis, Apollo's huntress sister, heard of the behavior of Coronis, she shot a quiverful of arrows into her. Apollo saved his unborn son, named him Aesculapius, and took him to Chiron, the kind and extremely wise centaur, who taught him the art of medicine. The youth mastered the art completely, so much so that Hades, King of the Underworld, feeling threatened should Aesculapius be able to raise the dead, complained to Zeus. The great god regrettably decided that Aesculapius must die, and struck him with a thunderbolt, thereafter placing him among the stars. To this day, Aesculapius and the serpent are associated with healing, and all physicians take the Hippocratic oath (Hippocrates supposedly being a descendant of Aesculapius). SERPENS, The Serpent, and Ophiuchus, The Serpent Holder, originally formed one constellation.
    [Show full text]
  • Astropanda2004's Fast Facts Test Key 2017
    Astropanda2004’s Fast Facts Test Key 2017 Each team is given 6 min/round. This test consists of 2 games, each with 3 rounds. **note: not all answers listed here are the only options, accept all answers that are correct** Game 1-ROUND 1 Team #:___________ School Name:___________________________________________ Student Names:_____________________________________________________________ Letter Fields of Science Minerals Diseases Scientists Deep Sky Objects i Immunology, Iron, Indium, Ichthyosis, Hiroshi Ishiguro, Izar, Indus, Iconology, Iridium, Indite, Impetigo, Ernesto Illy, Intercrus, etc. Ichthyology, etc. etc. Interstitial Cystitis, Keisuke Ito, etc. etc. k Kinetics, Kyanite, Kaolinite, Kowarski Johannes Kepler, Kepler’s SNR, Kalology, Kainite, Karlite, Syndrome, Emil Kraepelin, Kaus Australis, Karyology, Kernite, etc. Kimura disease, Frances Kelsey, Keid, Kitalpha, Kinematics, etc. Keratoconus, etc. Thomas Kuhn, Kochab, Stephanie Kornephoros, etc. Kwolek, etc. f Forestry, Floristry, Feldspar, Fluorite, Facial cleft, Fahr’s Benjamin Fornax, Furud, Fluviology, etc. Fornacite, etc. Disease, Familial Franklin, Enrico Footprint Nebula, ASL, Fibrosis, Fermi, Dian Fetus Nebula, Fucosidosis, etc. Fossey, Fleming 1, etc. Alexander Fleming, etc. b Biology, Botany, Bornite, Barite, Bubonic Plague, Niels Bohr, Bootes, Bellatrix, Bibliography, Biotite, Bauxite, Basal Cell Michael Brown, Betelgeuse, Beid, Bacteriology, Beryl, Bronzite, Carcinoma, Alfred Binet, Hans Blinking Planetary Biometrics, etc. etc. Berger Disease, Beth, Ibn Battuta, Nebula,
    [Show full text]
  • Astronomy Magazine 2018 Index
    Astronomy Magazine 2018 Index SUBJECT A AAS (American Astronomical Society), 10:56–57 AAVSO (American Association of Variable Star Observers), 10:57 Abell 1656 (Coma Cluster of Galaxies), 6:57 Abell 1758 (galaxy cluster), 12:74 Abell S0636 (Antlia Cluster), 12:71 abiogenesis, 8:16 ACEAP (Astronomy in Chile Educator Ambassadors Program), 4:28–31 active galactic nuclei (AGN) See also black holes clouds of obscuring dust, 10:13 dusty torus around, 6:21 need to revise model used to classify, 2:19 Adler Planetarium, 6:45 AE Aurigae (variable star), 1:53 AL (Astronomical League), 10:58 ALMA. See Atacama Large Millimeter/submillimeter Array (ALMA) ALPHA experiment, 1:24–25 Alpha Scorpii (Antares) (star), 1:72 ALPO (Association of Lunar and Planetary Observers), 10:56 amateur astronomy changing lives of students, 5:16 exoplanets discovered through, 9:11 organizations for, 10:56–60 #Popscope, 10:64 American Association of Variable Star Observers (AAVSO), 10:57 American Astronomical Society (AAS), 10:56–57 American Meteor Society (AMS), 10:57 Andromeda (constellation), observations within, 10:68 Andromeda Galaxy (M31) consumption of M32, 11:18 mass of, 6:19 Ant Nebula, 9:11 Antares (Alpha Scorpii) (star), 1:72 antimatter high number of positrons in near-Earth space, 3:12 lightning strikes and, 3:11 trapping antihydrogen for study, 1:24–25 Antique Telescope Society (ATS), 10:58 Antlia Cluster (Abell S0636), 12:71 Apollo missions Apollo 7 mission, 50th anniversary, 10:10–11 Apollo 8 mission, interview with Jim Lovell, 12:28–35 Apollo 8 mission, orbits of Moon, 12:14 Apollo 11 mission, digitizing recordings from, 4:19 Apollo 12 mission, struck by lightning, 11:16 Mission Moon 3-D book, 12:18–27 Arecibo Observatory, 6:15 ARIEL space telescope, 7:11 Arp 78 (NGC 772) (spiral galaxy), 4:73 ARTS supercomputer, 5:15 ASP (Astronomical Society of the Pacific), 10:58 Association of Lunar and Planetary Observers (ALPO), 10:56 1 Astronomy Magazine Subject Index asterisms, created by John Davis, 8:66.
    [Show full text]
  • Astronomy for Young Folks
    3R YOUNG FOL ELM ASTRONOMY FOR YOUNG FOLKS NORTHERN PORTION OF THE MOON AT LAST QUARTER Taken with loo-inch Hooker Telescope of the Mt. Wilson Observatory (See Chapter XXI) ASTRONOMY for YOUNG FOLKS BY ISABEL MARTIN LEWIS, A. M. (Connected with the Nautical Almanac Office of the U. S. Naval Observatory) NEW YORK DUFFIELD AND COMPANY 1922 Copyright, 1921, by THE CENTURY COMPANY Copyright, 1922, by DUFFIELD AND COMPANY Printed in U. S. A. CONTENTS CHAPTER PAGE . xiii Preface ...... , . I. The Constellations ...... 3 . 15 II. January . .... 21 III. February . ... IV. March . 28 ' * * 35 V. April . ... v .-""^ . 41 VI. May . f . 49 VII. June ;/. ...... VIII. .-..-. 56 July ; IX. August , . , . 64 X. September . -, ... 71 XL October . , . 78 XII. November . , .... 84 XIII. December . 90 XIV. Stars of the Southern Hemisphere . 96 XV. The Milky Way or Galaxy . .107 XVI. The Surface of the Sun . .113 XVII. The Solar System ... .' . .119 XVIII. The Origin of the Earth . , . 127 XIX. Jupiter and His Nine Moons . .139 XX. The Rings and Moons of Saturn . 148 XXI. Is the Moon a Dead World 156 XXII. Comets . V . 165 XXIII. Meteorites ........ 173 V 493929 vi CONTENTS CHAPTER PAGE XXIV. The Earth As a Magnet 183 XXV. Some Effects of the Earth's Atmosphere Upon Sunlight . 193 XXVI. Keeping Track of the Moon .... 207 XXVII. The Motions of the Heavenly Bodies . 216 XXVIII. The Evolution of the Stars From Red Giants to Red Dwarfs 225 XXIX. Double and Multiple Stars .... 230 XXX. Astronomical Distances 241 XXXI. Some Astronomical Facts Worth Remem- bering 250 ILLUSTRATIONS PAGE Northern Portion of the Moon at Last Quarter Frontispiece The Great Hercules Cluster A Universe of Suns ......
    [Show full text]