DOCSLIB.ORG

The Observer's Handbook 1962

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text

Load more

THE OBSERVER’S HANDBOOK 1962 Fifty-fourth Year of Publication THE ROYAL ASTRONOMICAL SOCIETY OF CANADA Price One Dollar THE ROYAL ASTRONOMICAL SOCIETY OF CANADA Incorporated 1890 — Royal Charter 1903 The National Headquarters of the Royal Astronomical Society of Canada is located at 252 College Street, Toronto 2B, Ontario. The business office of the Society, reading rooms and astronomical library, are housed here, as well as a large room for the accommodation of telescope making groups. Membership in the Society is open to anyone interested in astronomy. Applicants may affiliate with one of the Society’s sixteen centres across Canada, or may join the National Society. Centres of the Society are established in Halifax, Quebec, Montreal, Ottawa, Kingston, Hamilton, Niagara Falls, London, Windsor, Winnipeg, Edmonton, Calgary, Vancouver, Victoria, and Toronto. Addresses of the Centres’ secretaries may be obtained from the National Office. Publications of the Society are free to members, and include the Jo u r n a l (6 issues per year) and the O b s e r v e r ’s H a n d b o o k (published annually in November). Annual fees of $5.00 are payable October 1 and include the publications for the following year. Requests for additional information regarding the Society or its publications may be sent to the address above. Communications to the Editor should be sent to Miss Ruth J. Northcott, David Dunlap Observatory, Richmond Hill, Ontario. BOOKS FOR YOUNG ASTRONOMERS OBSERVING THE HEAVENS THE ATMOSPHERE HOW TIME IS MEASURED HOW THE EARTH IS MADE clearly written, well illustrated books by Peter Hood for children from 12 to 16, each $2.25, from all bookstores OXFORD UNIVERSITY PRESS THE OBSERVER’S HANDBOOK 1962 E d it o r R u t h J . N o r t h c o t t Fifty-fourth Year of Publication THE ROYAL ASTRONOMICAL SOCIETY OF CANADA 252 C o l l e g e S t r e e t , T o r o n t o 2B, O n t a r io CONTENTS PAGE Acknowledgements .................................................................. 3 Anniversaries and Festivals.......................................................................3 Julian Day C alendar ............................................................................... 3 Symbols and Abbreviations.......................................................................4 The C onstellations ............................................................................... 5 Miscellaneous Astronomical Data .............................................6 Ephemeris of the S u n ............................................................................... 7 Principal Elements of the Solar S y s te m .............................................8 Satellites of the Solar System . 9 Solar, Sidereal and Ephemeris T i m e ................................................... 10 Map of Standard Time Z o n e s ............................................................11 Radio Time S ig n a ls ......................................................................... 11 Times of Rising and Setting of the Sun and Moon . 12 Sunrise and Sunset............................................................................. 13 Beginning and Ending of T w ilig h t ...........................................19 Moonrise and M o o n se t ............................................................20 The Planets for 1962 26 The Sky and Astronomical Phenomena Month by Month . 32 Phenomena of Jupiter’s S a te llite s ...................................................56 The Observation of the M o o n ............................................................57 Longitude of Jupiter’s Central M eridian .......................................... 58 Ephemeris for the Physical Observation of the Sun . 59 Eclipses, 1962 60 Planetary Occultations............................................................................. 60 Lunar Occultations, 1962 61 The Brightest A stero id s .....................................................................64 Meteors, Fireballs and M eteo rites ................................................... 65 Table of Precession for 50 Y e a r s ................................................... 66 Finding List of Named S t a r s ............................................................67 The Brightest Stars, their magnitudes, types, proper motions, distances and radial velocities and navigation stars. 68 Double and Multiple S tars .....................................................................79 The Nearest Stars . 80 Variable Stars 82 Clusters and Nebulae: Star Clusters......................................................................................84 Galactic N ebulae ............................................................................. 85 External Galaxies............................................................................. 86 Four Circular Star M a p s .....................................................................87 PRINTED IN CANADA BY THE UNIVERSITY OF TORONTO PRESS THE OBSERVER’S HANDBOOK for 1962 is the 54th issue. The section on lunar occultations has been expanded to include all the predictions made for the Canadian Stations by the British Nautical Almanac Office; occultations of stars of magnitude 7.5 or brighter are listed. Comments are requested concerning the increased value of this enlarged section. The longitude of the central meridian of the planet Jupiter has been added for planetary observers; this has been prepared by Geoffrey Gaherty, Jr. Cordial thanks are offered to those who assisted in the preparation of this volume, to those who are named and to Barbara Gaizauskas, William Greig, Kulli Milles, Isabel Williamson, and Dorothy Yane. Special thanks are due to Gordon E. Taylor and the British Astronomical Association for the data on the planetary occupation and to Margaret W. Mayall, Director of the A.A.V.S.O., for the predictions of the times of maxima of the long-period variables and for the preparation of new maps for this section. Our deep indebtedness to the British Nautical Almanac Office and to the American Ephemeris is thankfully acknowledged. R u t h J. N o r t h c o t t ANNIVERSARIES AND FESTIVALS, 1962 New Year’s D ay..........Mon. Jan. 1 Pentecost (Whit Sunday)........ June 10 Epiphany...................... Sat. Jan. 6 Trinity Sunday..........................June 17 Accession of Queen Corpus Christi...............Thu. June 21 Elizabeth (1952) Tue. Feb. 6 St. John Baptist (Mid­ Septuagesima Sunday Feb. 18 summer Day).............Sun. June 24 St. D avid...................... Thu. Mar. 1 Dominion Day...............Sun. July 1 Quinquagesima (Shrove Birthday of Queen Mother Sunday)...................................Mar. 4 Elizabeth (1900)... .Sat. Aug. 4 Ash Wednesday......................... Mar. 7 Labour D ay...................Mon. Sept. 3 St. Patrick.................... Sat. Mar. 17 Hebrew New Year Palm Sunday Apr. 15 (Rosh Hashanah) Sat. Sept. 29 Good Friday Apr. 20 St. Michael (Michael­ Birthday of Queen mas D ay)....................Sat. Sept. 29 Elizabeth (1926). .Sat. Apr. 21 Thanksgiving................ Mon. Oct. 8 Easter Sunday Apr. 22 All Saints’ D ay............. Thu. Nov. 1 St. George..................... Mon. Apr. 23 Remembrance Day... .Sun. Nov. 11 Victoria Day.................Mon. May 21 St. Andrew......................Fri. Nov. 30 Rogation Sunday.......................May 27 First Sunday in Advent........... Dec. 2 Ascension D ay............. Thu. May 31 Christmas Day..............Tue. Dec. 25 JULIAN DAY CALENDAR, 1962 J.D. 2,430,000 plus the following: Jan. 1 ................7,666 May 1 ..................7,786 Sept. 1 ..................7,909 Feb.......1................7,697 June 1..................7,817 Oct. 1..................7,939 Mar......1 ................7,725 July 1 ..................7,847 Nov. 1 ..................7,970 Apr. 1 ................7,756 Aug. 1 ..................7,878 Dec. 1 ..................8,000 The Julian Day commences at noon. Thus J.D. 2,437,666.0 = Jan. 1.5 U.T. SYMBOLS AND ABBREVIATIONS SUN, MOON AND PLANETS ASPECTS AND ABBREVIATIONS SIGNS OF THE ZODIAC THE GREEK ALPHABET THE CONFIGURATIONS OF JUPITER’S SATELLITES In the Configurations of Jupiter’s Satellites (pages 33, 35, etc.), O represents the disk of the planet, d signifies that the satellite is on the disk, * signifies that the satellite is behind the disk or in the shadow. Configurations are for an inverting telescope. CALCULATIONS FOR ALGOL The calculations for the minima of Algol are based on the epoch J.D. 2437208.7224 and period 2.8674 days as published in Sky and Telescope, 1961. CELESTIAL DISTANCES Celestial distances given herein are based on the standard value of 8.80" for the sun’s parallax. THE CONSTELLATIONS Latin Names with Pronunciations and Abbreviations MISCELLANEOUS ASTRONOMICAL DATA U n it s of L e n g t h 1 Angstrom unit = 10-8 cm. 1 micron, μ = 10-4 cm. = 104 A. 1 meter = 102 cm. = 3.28084 feet 1 kilometer = 105 cm. = 0.62137 miles 1 mile = 1.60935X105 cm. = 1.60935 km. 1 astronomical unit = 1.49504 X1013 cm. = 92,897,416 miles 1 light year = 9.463X1017 cm. = 5.880X1012 miles = 0.3069 parsecs 1 parsec = 30.84X1017 cm. = 19.16X1012 miles = 3.259 l.y. 1 megaparsec = 30.84X 1023 cm. = 19.16X1018 miles = 3.259 X106 l.y. U n it s of T im e Sidereal day = 23h 56m 04.09s of mean solar time Mean solar day = 24h 03m 56.56s of mean sidereal time Synodical month = 29d 12h 44m; sidereal m onth = 27d 07h 43m Tropical year (ordinary) =365d 05h 48m 46s Sidereal year =365d 06h 09m 10s Eclipse year = 346d 14h 53m T h e E a r t h Equatorial radius, a = 3963.35 miles;
Recommended publications
  • BRAS Newsletter August 2013

    BRAS Newsletter August 2013

    www.brastro.org August 2013 Next meeting Aug 12th 7:00PM at the HRPO Dark Site Observing Dates: Primary on Aug. 3rd, Secondary on Aug. 10th Photo credit: Saturn taken on 20” OGS + Orion Starshoot - Ben Toman 1 What's in this issue: PRESIDENT'S MESSAGE....................................................................................................................3 NOTES FROM THE VICE PRESIDENT ............................................................................................4 MESSAGE FROM THE HRPO …....................................................................................................5 MONTHLY OBSERVING NOTES ....................................................................................................6 OUTREACH CHAIRPERSON’S NOTES .........................................................................................13 MEMBERSHIP APPLICATION .......................................................................................................14 2 PRESIDENT'S MESSAGE Hi Everyone, I hope you’ve been having a great Summer so far and had luck beating the heat as much as possible. The weather sure hasn’t been cooperative for observing, though! First I have a pretty cool announcement. Thanks to the efforts of club member Walt Cooney, there are 5 newly named asteroids in the sky. (53256) Sinitiere - Named for former BRAS Treasurer Bob Sinitiere (74439) Brenden - Named for founding member Craig Brenden (85878) Guzik - Named for LSU professor T. Greg Guzik (101722) Pursell - Named for founding member Wally Pursell
  • A Spectroscopic Atlas of Deneb (A2 Iae) $\Lambda\Lambda$3826–5212

    A Spectroscopic Atlas of Deneb (A2 Iae) $\Lambda\Lambda$3826–5212

    A&A 400, 1043–1049 (2003) Astronomy DOI: 10.1051/0004-6361:20030014 & c ESO 2003 Astrophysics A spectroscopic atlas of Deneb (A2 Iae) λλ3826–5212? B. Albayrak1,A.F.Gulliver2,??,S.J.Adelman3,??, C. Aydın1,andD.Ko¸cer4 1 Ankara University, Science Faculty, Department of Astronomy and Space Sciences, 06100, Tando˘gan, Ankara, Turkey e-mail: [email protected]; [email protected] 2 Department of Physics and Astronomy, Brandon University, Brandon, MB, R7A 6A9, Canada e-mail: [email protected] 3 Department of Physics, The Citadel, 171 Moultrie Street, Charleston, SC 29409, USA e-mail: [email protected] 4 Istanbul˙ K¨ult¨ur University, Science & Art Faculty, Department of Mathematics, E5 Karayolu Uzeri,¨ 34510, S¸irinevler, Istanbul,˙ Turkey e-mail: [email protected] Received 2 December 2002 / Accepted 6 January 2003 Abstract. We present a spectroscopic atlas of Deneb (A2 Iae) obtained with the long camera of the 1.22-m telescope of the 1 Dominion Astrophysical Observatory using Reticon and CCD detectors. For λλ3826–5212 the inverse dispersion is 2.4 Å mm− with a resolution of 0.072 Å. At the continuum the mean signal-to-noise ratio is 1030. The wavelengths in the laboratory frame, the equivalent widths, and the identifications of the various spectral features are given. This atlas should provide useful guidance for studies of other stars with similar spectral types. The stellar and synthetic spectra with their corresponding line identifications can be examined at http://www.brandonu.ca/physics/gulliver/atlases.html Key words. atlases – stars: early type – stars: individual: Deneb – stars: supergiants 1.
  • SEPTEMBER 2014 OT H E D Ebn V E R S E R V ESEPTEMBERR 2014

    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.
  • The Midnight Sky: Familiar Notes on the Stars and Planets, Edward Durkin, July 15, 1869 a Good Way to Start – Find North

    The Midnight Sky: Familiar Notes on the Stars and Planets, Edward Durkin, July 15, 1869 a Good Way to Start – Find North

    The expression "dog days" refers to the period from July 3 through Aug. 11 when our brightest night star, SIRIUS (aka the dog star), rises in conjunction* with the sun. Conjunction, in astronomy, is defined as the apparent meeting or passing of two celestial bodies. TAAS Fabulous Fifty A program for those new to astronomy Friday Evening, July 20, 2018, 8:00 pm All TAAS and other new and not so new astronomers are welcome. What is the TAAS Fabulous 50 Program? It is a set of 4 meetings spread across a calendar year in which a beginner to astronomy learns to locate 50 of the most prominent night sky objects visible to the naked eye. These include stars, constellations, asterisms, and Messier objects. Methodology 1. Meeting dates for each season in year 2018 Winter Jan 19 Spring Apr 20 Summer Jul 20 Fall Oct 19 2. Locate the brightest and easiest to observe stars and associated constellations 3. Add new prominent constellations for each season Tonight’s Schedule 8:00 pm – We meet inside for a slide presentation overview of the Summer sky. 8:40 pm – View night sky outside The Midnight Sky: Familiar Notes on the Stars and Planets, Edward Durkin, July 15, 1869 A Good Way to Start – Find North Polaris North Star Polaris is about the 50th brightest star. It appears isolated making it easy to identify. Circumpolar Stars Polaris Horizon Line Albuquerque -- 35° N Circumpolar Stars Capella the Goat Star AS THE WORLD TURNS The Circle of Perpetual Apparition for Albuquerque Deneb 1 URSA MINOR 2 3 2 URSA MAJOR & Vega BIG DIPPER 1 3 Draco 4 Camelopardalis 6 4 Deneb 5 CASSIOPEIA 5 6 Cepheus Capella the Goat Star 2 3 1 Draco Ursa Minor Ursa Major 6 Camelopardalis 4 Cassiopeia 5 Cepheus Clock and Calendar A single map of the stars can show the places of the stars at different hours and months of the year in consequence of the earth’s two primary movements: Daily Clock The rotation of the earth on it's own axis amounts to 360 degrees in 24 hours, or 15 degrees per hour (360/24).
  • Detection and Characterization of Hot Subdwarf Companions of Massive Stars Luqian Wang

    Detection and Characterization of Hot Subdwarf Companions of Massive Stars Luqian Wang

    Georgia State University ScholarWorks @ Georgia State University Physics and Astronomy Dissertations Department of Physics and Astronomy 8-13-2019 Detection And Characterization Of Hot Subdwarf Companions Of Massive Stars Luqian Wang Follow this and additional works at: https://scholarworks.gsu.edu/phy_astr_diss Recommended Citation Wang, Luqian, "Detection And Characterization Of Hot Subdwarf Companions Of Massive Stars." Dissertation, Georgia State University, 2019. https://scholarworks.gsu.edu/phy_astr_diss/119 This Dissertation is brought to you for free and open access by the Department of Physics and Astronomy at ScholarWorks @ Georgia State University. It has been accepted for inclusion in Physics and Astronomy Dissertations by an authorized administrator of ScholarWorks @ Georgia State University. For more information, please contact [email protected]. DETECTION AND CHARACTERIZATION OF HOT SUBDWARF COMPANIONS OF MASSIVE STARS by LUQIAN WANG Under the Direction of Douglas R. Gies, PhD ABSTRACT Massive stars are born in close binaries, and in the course of their evolution, the initially more massive star will grow and begin to transfer mass and angular momentum to the gainer star. The mass donor star will be stripped of its outer envelope, and it will end up as a faint, hot subdwarf star. Here I present a search for the subdwarf stars in Be binary systems using the International Ultraviolet Explorer. Through spectroscopic analysis, I detected the subdwarf star in HR 2142 and 60 Cyg. Further analysis led to the discovery of an additional 12 Be and subdwarf candidate systems. I also investigated the EL CVn binary system, which is the prototype of class of eclipsing binaries that consist of an A- or F-type main sequence star and a low mass subdwarf.
  • Links to Education Standards • Introduction to Exoplanets • Glossary of Terms • Classroom Activities Table of Contents Photo © Michael Malyszko Photo © Michael

    Links to Education Standards • Introduction to Exoplanets • Glossary of Terms • Classroom Activities Table of Contents Photo © Michael Malyszko Photo © Michael

    an Educator’s Guid E INSIDE • Links to Education Standards • Introduction to Exoplanets • Glossary of Terms • Classroom Activities Table of Contents Photo © Michael Malyszko Photo © Michael For The TeaCher About This Guide .............................................................................................................................................. 4 Connections to Education Standards ................................................................................................... 5 Show Synopsis .................................................................................................................................................. 6 Meet the “Stars” of the Show .................................................................................................................... 8 Introduction to Exoplanets: The Basics .................................................................................................. 9 Delving Deeper: Teaching with the Show ................................................................................................13 Glossary of Terms ..........................................................................................................................................24 Online Learning Tools ..................................................................................................................................26 Exoplanets in the News ..............................................................................................................................27 During
  • The Relative Sizes of the Sun and Stars 25

    The Relative Sizes of the Sun and Stars 25

    The relative sizes of the sun and stars 25 Stars come in many sizes, but their true appearances are impossible to see without special telescopes. The image to the left was taken by the Hubble Space telescope and resolves the red supergiant star Betelgeuse so that its surface can be just barely seen. Follow the number clues below to compare the sizes of some other familiar stars! Problem 1 - The sun's diameter if 10 times the diameter of Jupiter. If Jupiter is 11 times larger than Earth, how much larger than Earth is the Sun? Problem 2 - Capella is three times larger than Regulus, and Regulus is twice as large as Sirius. How much larger is Capella than Sirius? Problem 3 - Vega is 3/2 the size of Sirius, and Sirius is 1/12 the size of Polaris. How much larger is Polaris than Vega? Problem 4 - Nunki is 1/10 the size of Rigel, and Rigel is 1/5 the size of Deneb. How large is Nunki compared to Deneb? Problem 5 - Deneb is 1/8 the size of VY Canis Majoris, and VY Canis Majoris is 504 times the size of Regulus. How large is Deneb compared to Regulus? Problem 6 - Aldebaran is 3 times the size of Capella, and Capella is twice the size of Polaris. How large is Aldebaran compared to Polaris? Problem 7 - Antares is half the size of Mu Cephi. If Mu Cephi is 28 times as large as Rigel, and Rigel is 50 times as large as Alpha Centauri, how large is Antares compared to Alpha Centauri? Problem 8 - The Sun is 1/4 the diameter of Regulus.
  • Equatorial Night Sky for August 2011

    Equatorial Night Sky for August 2011

    I N E D R I A C A S T N E O D I T A C L E O R N I G D S T S H A E P H M O O R C I . Z N O i s e d H e . p s i c e O l N t e u c d r Z e i n I H C t y h R I b e R n O s i k a C y l H s L w s E i E a t h w H ( h ) T F i n O s o D R l NORTH g e N a M f r t E A D X f O o e A H o C h M T t T . I ( o P N n S L o E c E i Z a P t r s “ E EQUATORIAL EDITION D A N h , H e O y T M a R g d T o N Y . l H E o ” K E h ) t W S . y . T T m E U W B n R I N The Evening Sky Map W D E T T AUGUST 2011 WH A MINOR E C FREE* EACH MONTH FOR YOU TO EXPLORE, LEARN & ENJOY THE NIGHT SKY O S L K CEPHEUS URSA Y E β R M T . A h A n SKY MAP SHOWS HOW e Get Sky Calendar on Twitter S P o i T N t C A Thuban a o E R l l r Sky Calendar – August 2011 J http://twitter.com/skymaps O t THE NIGHT SKY LOOKS e B h t U δ e s O N r n n L D o A c NE C & Alcor & I MAJOR I EARLY AUG 9 PM r T T e o URSA S Mizar v 1 Moon near Regulus (21° from Sun, evening sky) at 7h UT.
  • Beta Hydri Tau Ceti 61 Cygni Alpha Centauri Aragoth Deneb Vega

    Beta Hydri Tau Ceti 61 Cygni Alpha Centauri Aragoth Deneb Vega

    Tokai Saikutsu Systems Sectors Planet Dahin Porvenir Mons Starbases Gate paths Dahin Class restricted paths Wormhole paths Planet Endriago Gallina Kitara's Veil Jupiter Mazzaroth Capella Maelstrom Jove's Detention Center Fury Onorom Arx Spartol Paren Station Ashanti Maru Lagarto Moon Io Asteroid Belt (Explorers) Gamma Risco Kailaasa Endriago Europa Nishino Resarch Facility (Defenders) Prasad Mars Beta Mondara Station (Sentinels) Maelstrom Asteroid Belt Yokan Yasuragi and Sol Arx Prima Lagarto Vishao's Cove Cha'han's Dojo Beta Xipe Totec Arx Magister Mars Primus Arx Forgus Arx Tiberius Sirius ECS Dauntless Earth Station Mars Alpha Planet (Warriors) Antares 1 Swooping Vega Eagle Tarsis Earth Luna Station Asteroid Belt Loki Station Antares Antares Alpha Frontier Luna Praetorium Mons Roc High Earth (Enforcers) Swooping Eagle Net-7 Sol (Tradesmen) Orsini Mining Akeron's Gate Deneb Platform Planet Primus Saturn EarthCorps High Command Carpenter Somerled Zweihander Friendship 7 Station Freya New Edinburgh Trader's Glenn Fort Alpha Centauri Arx Ymir Jagerstadt Slayton Witberg Ragnarok Jotunheim Beta Hydri Nifleheim Cloud Shepard Planet Zweihander Aragoth Arduinne Mercury Station Fenris Observatory Tau Ceti Aragoth Station Fenris Glory's Orbit Cooper 61 Cygni Valkyrie Twins Odin Rex Kinshasa-Mbali Varen's Inverness Girdle Chernevog Station Inverness Down Aganju Planet Grissom Planet Arduinne Aragoth Prime Grissom (C) Copyright 2002, Electronic Arts Inc. All Rights Reserved. Planet Inverness Muspelheim Odin's Belt.
  • The Evening Sky Map

    The Evening Sky Map

    I N E D R I A C A S T N E O D I T A C L E O R N I G D S T S H A E P H M O O R C I . Z N O p l f e i n h d o P t O o N ) l h a r g Z i u s , o I l C t P h R I r e o R N ( O o r C r H e t L p h p E E i s t D H a ( r g T F i . O B NORTH D R e N M h t E A X O e s A H U M C T . I P N S L E E P Z “ E A N H O NORTHERN HEMISPHERE M T R T Y N H E ” K E η ) W S . T T E W U B R N W D E T T W T H h A The Evening Sky Map e MAY 2021 E . C ) Cluster O N FREE* EACH MONTH FOR YOU TO EXPLORE, LEARN & ENJOY THE NIGHT SKY r S L a o K e Double r Y E t B h R M t e PERSEUS A a A r CASSIOPEIA n e S SKY MAP SHOWS HOW Get Sky Calendar on Twitter P δ r T C G C A CEPHEUS r E o R e J s O h Sky Calendar – May 2021 http://twitter.com/skymaps M39 s B THE NIGHT SKY LOOKS T U ( O i N s r L D o a j A NE I I a μ p T EARLY MAY PM T 10 r 61 M S o S 3 Last Quarter Moon at 19:51 UT.
  • Using JMI Digital Setting Circles with Astro-Physics Mounts

    Using JMI Digital Setting Circles with Astro-Physics Mounts

    Using JMI Digital Setting Circles with Astro-Physics Mounts INSTALLATION OF ENCODERS AND ENCODER HOUSINGS Please refer to separate chapter describing procedures for your mount. SETUP MOUNT TYPE AND ENCODER RATIO IN DIGITAL SETTING CIRCLE COMPUTER The JMI Digital Setting Circles were developed to be used with a wide variety of mounts and encoder arrangements. In order for the unit to work properly, information regarding the type of mount and the encoder ratio must be entered into the computer software. If you purchased your JMI Digital Setting Circles from Astro-Physics, the mount setting ("GQ" for NGC-microMAX, "GP" for NGC-miniMAX and NGC-MAX) and the correct encoder ratios have already been installed for your convenience. These settings will remain in nonvolatile memory and you probably will not have to enter them again. Nevertheless, we do suggest that you verify the settings and make a few additional choices regarding some of the other functions. Select the instructions for the JMI unit that you are using. Note that instructions are included for several version numbers. When you turn your unit on, the version number will display. Proceed with the appropriate instructions. If you purchased your JMI Digital Setting Circles from another vendor, you must follow the procedures below for your Astro-Physics mount. If you use the JMI Digital Setting Circles for another mount you own, consult the JMI instruction booklet for further information. NGC-microMAX (version lower than 1.00) The only German Equatorial mount setting available is "GQ" (German Equatorial). The mount will not need to be polar aligned when you are observing.
  • Q4 FY 2011 FINAL.Indd

    Q4 FY 2011 FINAL.Indd

    Josh Carter of the Harvard-Smithsonian Center for Astrophysics was an author of a study in Science announcing the discovery of Kepler-16b, the fi rst confi rmed example of a circumbinary planet—a planet orbiting not one, but two stars. Report to the Regents Fourth Quarter, Fiscal Year 2011 Prepared by Offi ce of Policy and Analysis Broadening Access: Visitation Summary In fi scal year 2011, the Smithsonian counted 29.2 million visits to its museums in Washington, D.C. and New York, plus the National Zoological Park and Steven F. Udvar-Hazy Center—very similar to the fi scal year 2010 fi gure of 29.9 million. Th e Smithsonian Redesign project has identifi ed “unique visitors” as the key Smithsonian-wide web visitation metric to be tracked going forward. In fi scal year 2011, the Smithsonian counted approximately 79 million unique visitors to its numerous websites. Because this metric diff ers from the web “visits” metric reported previously, this fi gure cannot be directly compared with the fi gures A visitor in the Butterfl y Pavilion of the National Museum of Natural History given in previous Reports to the Regents. Visits to Smithsonian Venues and Traveling Exhibitions Fiscal Years 2009, 2010, and 2011 9 8 7 6 Millions 5 4 FY 2009 3 FY 2010 FY 2011 2 1 0 Freer/Sackler Renwick Air and Space Hirshhorn Heye Center-NY Natural History African Art Ripley Center Udvar-Hazy Reynolds Center Anacostia Postal Cooper-Hewitt-NY National Zoo SI Castle American History American Indian-Mall Report to the Regents, January 2012 1 Grand Challenges Highlights Understanding the American Experience Research This quarter saw the publication of The Jefferson Bible: Smithsonian Edition, a full-color facsimile of Th omas Jeff erson’s unique work The Life and Morals of Jesus of Nazareth, a rearranged and edited version of the New Testament gospels selected from printed texts in English, French, Latin, and Greek.