DOCSLIB.ORG

Page, Thornton Education

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Page, Thornton Education pocusim mitspex7 'ED 161 719 Si'025 183 AUTHOR Pat Lqu Williams; Page, Thornton TITLE Ap lo. -Soyuz Pamphlet No. 3: Sun, Stars,Ih"Between: kpollo-Soyuz Experiments in Space. INSTITUTION. National Aetonautics and Space Administration! Washington, D4C. :.:4,1REVOR NASA-EP-135 NOT Oct 77 NOTE 63f.; For related, documents,seeSi 025181-09 ; Marginally legible in parts due to smallprint;. Photographs will not reproduce clearly AVAILABLE FROM Superintendent of Documents, O.S. Governsent Printin Office, Washington, D:C. ,2U402. (Stock No. 033-800-0068878; Available, in sets only $10.60) EDRS PRICE mF-$043 BC-$3.50 Plus 'Postage. DESCRIPTORS Astronomy; College Science; Airth $cienc Education; *Instruational Mterials;°*Learuing Activities; Physical Scienceit#Scienca Bducatton;': Secondary Education; Secondaiy1Sciaool Science;ISpade Sciences; *Supplementary TextboOks ti IDENTIFIERS Nationhl aeronautics. and Space ldiinistra ABSTRACT This booklet is the third ip aseries of nine that. / discuss the,Apollo-Soyuz 'mission and experiments. This set is designed as a curriculum supplemen for secondary and college teachers, supervisors, curriculum specialists, textbook, writers,and ir the general Public. These booklets provide sources of ideas,examples'. of the scientific method, references' to standard textbooks, and descriptions of space experiments. There-are numerous illustrations,. as Well as-questions for discussion (with answers and a gltlisary of . terms. The series has been .reviewed' by selected high, school' and , college teachers nationw,ide. This booklet is concerned With the layers in the sun, stars and gas clouds in the Hilly Way,' and the amount of helium in space. (MA) 1 - *********************************************************************** * 'i Reproductions supplied by. EDRS are tle'best that can be made ,* * from the'original document. ,.1 . * _,--. *********************************************************************** 1 . : . S. DEPARTMENT OF HEALTH, EDUCATION IS WELFARE NATIONAL INSTITUTE OF : EDUCATION THIS DOCUMENT, HAS BEEN REPRO, Apollo -Soyuz .OUCED EXACTLM.AS'RECEIVED FROM THE PER SON OR ORGANIZATIONORIGIN* ATING IT. POINTS OF VIEW OR OPINIONS ',STATED DO NOT NEeESSARILY REPRE Pamphlet No.3: SENT OFFICIAL NATIONAL INSTITUTEOF. ' EDUCATION POSITION OR POCICY. Lin,Stark,In Betwe Apollo- This is one of a series of nine Soyuz curriculum-related pamphlets Experiments for-Teachers and Students In of Space Science Space Titles in this series of pamphlets include: On The Covw Prepared by Lou Williams Page and Thornton Page From Investigators' Reports of Experimental ResultS and With the Help of Advising Teachers Rational 'AeronautiCs and Space Administration Washington, D.C. 20546 October 1977 For sale by the SuperintendentAf p ments, U.S. Government Printing Office, Wash gton, D.C.20402 (9-Part Set; Sold in Sets Only) Stock Number 033-800-00688-8 The Apollo-Soyui Test Project (ASTP), which flew in July1975,aroused considerable public interest; fist, because the space rivals of the late1950's, and1960's,Were Working together in ajoint encleayor, tand second, because' 'their mutual efforts irfcluded developing, a space-trscue system. TheASTP.. riliO included significant scientific experimentS, the results of which can be used in teaChing bidlogy, physici, and mathematics in schools and colleges. Thli series ofpamPhlets discussing the Apollo-Soyuz mission and experi: meats it a set of curriculunrstipplements designed.for teachers, superygors, ,curriculum specialists, and textboOk.writers'as well as for the general pUblic.. : Neither textboOks :nor courses of study,,jhese 'pamphlets are intended to proyide a rich source of ideas, examples of the scientific method, pertinent - references to standard fextbookS, and cleat' descriptions df space experiments.. In a sense, they may be regarded as .a pioneering form of teaching aid. Seldom has there been such a forthright effort to prolhde, directly to teaChers, curriculum-relevant reports of current scientific'research..High school teachers who' reviewed.414e texts suggested that advanced students Who 'are- interested might be assigned to study one pamphlet and report on it to: the rest Of the class.. After class disCussion, students might be assigned .4vithOut access to the pamphlet) one or more .of the "Questions for Discussion" for formai or -informal answers, thus the application of what was previously covered in the pamphlets. The authors of these pamphlets are Dr. Lou Williams Page, a geologist, atilt Dr. Thornton Page, an astronomer. Both have taught science at several universities and have published 14 books orr science for schools, colleges, and the general reader, including a recent one on space science. .. ,Technical assistance to the Pages was proYided by the Apollo-Soyuz "'Program Scientist, 'DA. R, Thomas -Giuli, and by .Riclitird R. Baldwin, W. Wilson Lauderdale, and Susan N. Moetgomery, members of the group at the NASA Lyndon B. Johnson Space Center in Houston which Organized the scientists' participation in the ASTP and published their reports of experimen-.. tal results. Selected teachers from high schools and universities throughout the United States reviewed the pamphletS'in-Araft form. They suggested changes in wording, die :addition of sa glossa& of tents unfamiliar to :students, and irnProyementi in diagrams, A list of the teachers and of the seientific-inyes tigators who reviewed the texts -for: accuracy folloWs this Preface. This set ofApollo-Soyuz pamphlets was initiated and coordinated by. Dr. Frederiak B. Tuttle, Director of Edneational Programs, and was supported by the NASA Apollo-SoyuzPrograni'Office, by Leland J. Casey, Aerospace Engineer for AST?, mid by William D. Nixon, Educational Programs Officer, all of NASA Headquarters in Washington, D.C. 7 .. 6 Appreciatioq is expressed to the scientific inVestigators-and-teachers who reviewed the draft copies; tcahc;NASA specialists who provided diagrams and photographs; andto.J. K. Holcomb, Hea4quarters Director of AST! operations, and, Chester 114. Lee, AST!,Program Directoi at:Headquarters, whose interest in this educationatendeavor made this publication possible. 1. L Tea Chet. And. Sclentifi yeStigatOrt Who Reyhtewid thil'ext t d-L.dair, Oak Ridge National Laboratory, 0* Ridge, :Tenn. Lynette Aey, Norwich Free Acaderny, Norwich; Conn. J. Vernon Bailey, NASA Lyndon B: Johnson SpaCeVenter, Houston, Tex. --7")Stuart Bowyer, University of California at Berkeley, Berkeley, Calif. 1 ,.t.,),Bill Wesley. Brown, California State University at Chico, Chico, Calif.' '"'-=...itonald J. Bruno, Creightiin Preparatory School, Omaha, Nebr. 4 T. F. Budinger, University of California at Berkeley; Ber ele:, Calif. Robert F. Collins, Western States Chiropractic College, P rtland, Oreg. --.13. Sue Criswell, Baylor.C011ege of Medicine, Houston, 1 . T. M.. University of Michigan, Ann Arbor, Mich. David W. Eckert, Greater Latrobe Senior High School, Latrobe,l'a. Lyle N. Edge, Blanco High School; Blanco, Tex. Victor B. Eichler, Wichita State University, Wichita, Kans. FarOuk-E1-13az, Smithsonian Institutkr, Washington, D.C. , - D. Jerome Fisher, Emeritus, University. of Chicago, Phoenix, Ariz. R. T. Giuli, NASA Lyndon B. Johnson Space Center, Houston, Tex. :M. D. Grossi, Smithsonian Astrophysical ObServatory, Cambridge, Mass.- Wendy flindin, North Shore Ilebrew Academy,.GreatNeck, N.Y. Tim C. Ingoldsby, Westside High School,. Omaha, Nebr. Robert H. Johns, Academy of the New Church, Bryn. Athyn, Pa. D. J. Larson, Jr.; Grumman Aerospace, Bethpag9{N.Y. M. D. Lind,,Rockwell International Science Cen(er, Thousand Oaks, Calif. It .N. Little, University of Texas, Austin, Tex. SarahMiinly, Wade Hampton High SchoOly Greenville, S.C. Katherine Mays, Bay. City Independent School District, Bay City, Tex. Jane M. Oppenheimer, Bryn Mawr College, Bryn Mawr, Pa. T. J. Pepin; University of Wyoming', Laramie,Wyo. H. W. Scheid, NASA Lyndon 13. Johnson. Space Center, Houston, Tex, Seth Shulman, Naval Research Laboratory, Washington, D.C. James W. Skthan, Boston College; Weston; Mass. II. T. Slater, Jr:, Texas Education. Agency, At tin, Tex. Robert S. Snyder, NASA George`C. Marshall Space Flight Center,:Fluntsville, Ala. ' Jacqueline D. Spears, Port Jefferson High School, Port Jefferson Station, NIY. Robert L. Stewart, .Monticello High School, Monticello-, NN, Aletha Stone, Fulmore Junior High School, Austin, Tex. G. R. Taylor, NASA Lyndon B. Johnson Space Center, Houston, Tex: *Nob I. Troinbka, NASA Robert H. Geclobard SpaCe Flight,Center; Greenbelt, Md. F. 0.. Vonbun, NASA Robert H. Goddard Space Flight Center,.Greenbelt, Md. Douglas Winkler, Wade Hampt6d High SChool, Greenville, S.C. 7 Gorden Section 1 Introduction' Section 2 Layers in the Sun -*I., A. sore of the &in: Nuclear Reactions- ---BTThe'Photosphere: Surface TerpRp#1,1Y:1-andBfrOttne'ss C. Layers-Above the Rhotosplie4: 04pher _ r and'Coroha . ; D. The 4rtificial-SolarEclipsei Joint: E. Results of the Artificial Solar Ecli F. Questions for Discussion (Brightn Surface Temperature,Spectri, 16 Section-3 Stars and Gas Clouds in the Milky Way 19. A.Stellar Spectra 19, B. The Milky Way Galaxy 21 C.Stellar Evolution 23 D, The Extreme Ultraviolet Survey, Experiment MA-083 ...... 23 E. Results of the EUV Survey Experiment -27 F. Questions for Discussion (Spectra, Ionization, Temperature) ...32. Section 4 How Much Helium in Space? .... .. .... .. ..... ....... ..... ..33 A. The Discovery of Helium; Its Spectrum ...... ... .. .. .... .33 B.Formation of the Elements `4 C.Interstellar Gas
Load more

Recommended publications
  • Unknown Amorphous Carbon II. LRS SPECTRA the Sample Consists Of
    Table I A summary of the spectral -features observed in the LRS spectra of the three groups o-f carbon stars. The de-finition o-f the groups is given in the text. wavelength Xmax identification Group I B - 12 urn E1 9.7 M™ Silicate 12 - 23 jim E IB ^m Silicate Group II < 8.5 M"i A C2H2 CS? 12 - 16 f-i/n A 13.7 - 14 Mm C2H2 HCN? 8 - 10 Mm E 8.6 M"i Unknown 10 - 13 Mm E 11.3 - 11 .7 M«> SiC Group III 10 - 13 MJn E 11.3 - 11 .7 tun SiC B - 23 Htn C Amorphous carbon 1 The letter in this column indicates the nature o-f the -feature: A = absorption; E = emission; C indicates the presence of continuum opacity. II. LRS SPECTRA The sample consists of 304 carbon stars with entries in the LRS catalog (Papers I-III). The LRS spectra have been divided into three groups. Group I consists of nine stars with 9.7 and 18 tun silicate features in their LRS spectra pointing to oxygen-rich dust in the circumstellar shell. These sources are discussed in Paper I. The remaining stars all have spectra with carbon-rich dust features. Using NIR photometry we have shown that in the group II spectra the stellar photosphere is the dominant continuum. The NIR color temperature is of the order of 25OO K. Paper II contains a discussion of sources with this class of spectra. The continuum in the group III spectra is probably due to amorphous carbon dust.
    [Show full text]
  • Arthur C. Clarke Fred Körper, SFGH-Treffen 21.02.2009
    SF-Klassiker: Arthur C. Clarke Fred Körper, SFGH-Treffen 21.02.2009 Sir Arthur Charles Clarke (* 16. Dezember 1917 in Minehead, Somerset, England; † 19. März 2008 in Colombo, Sri Lanka) war ein britischer Science-Fiction-Schriftsteller. Durch den Film 2001: Odyssee im Weltraum von Stanley Kubrick, der auf einer Kurzgeschichte Clarkes beruht und dessen Drehbuch Clarke gemeinsam mit Kubrick schrieb, wurde er auch außerhalb der Science-Fiction-Szene bekannt. Clarke gilt als Visionär neuer Technologien, die er außer in Science-Fiction-Romanen und Kurzgeschichten auch in wissenschaftlichen Artikeln beschrieb. 1 Leben 2 Werk 2.1 Romane 2.2 Erzählungen 2.3 Kurzgeschichtensammlungen 2.4 Gemeinschaftswerke 2.5 Autobiografisches 3 Verfilmungen (Auswahl) 4 Clarke'sche Gesetze Leben Arthur Charles Clarke wurde am 16.Dezember 1917 in der Grafschaft Somerset im Südwesten Englands geboren. Von 1927 bis 1936 besuchte er die Huish's Grammar School in Taunton/Somerset und las bereits als Jugendlicher die Werke von H. G. Wells und Olaf Stapledon. Da Clarke aus finanziellen Gründen ein Studium zunächst verwehr blieb, ging er 1936 nach London und arbeitete dort zunächst im Staatsdienst. 1941 trat er als Radaroffizier in die Royal Air Force ein. Diese Erfahrungen liegen dem Roman Glide Path zugrunde. Seine Idee, geostationäre Satelliten zur technischen Kommunikation zu nutzen, die er 1945 unter dem Titel Extra-terrestrial Relays – Can Rocket Stations Give World- wide Radio Coverage? in der wissenschaftlichen Zeitschrift Wireless World veröffentlichte, erlebte 1964 mit dem Saetelliten Syncom 3 ihre Verwirklichung. Ihm zu Ehren wird daher der geostationäre Orbit auch „Clarke Belt“ beziehungsweise „Clarke Orbit“ genannt. Von 1946 bis 1948 studierte er Mathematik und Physik am Londoner King's College.
    [Show full text]
  • 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]
  • Winter Observing Notes
    Wynyard Planetarium & Observatory Winter Observing Notes Wynyard Planetarium & Observatory PUBLIC OBSERVING – Winter Tour of the Sky with the Naked Eye NGC 457 CASSIOPEIA eta Cas Look for Notice how the constellations 5 the ‘W’ swing around Polaris during shape the night Is Dubhe yellowish compared 2 Polaris to Merak? Dubhe 3 Merak URSA MINOR Kochab 1 Is Kochab orange Pherkad compared to Polaris? THE PLOUGH 4 Mizar Alcor Figure 1: Sketch of the northern sky in winter. North 1. On leaving the planetarium, turn around and look northwards over the roof of the building. To your right is a group of stars like the outline of a saucepan standing up on it’s handle. This is the Plough (also called the Big Dipper) and is part of the constellation Ursa Major, the Great Bear. The top two stars are called the Pointers. Check with binoculars. Not all stars are white. The colour shows that Dubhe is cooler than Merak in the same way that red-hot is cooler than white-hot. 2. Use the Pointers to guide you to the left, to the next bright star. This is Polaris, the Pole (or North) Star. Note that it is not the brightest star in the sky, a common misconception. Below and to the right are two prominent but fainter stars. These are Kochab and Pherkad, the Guardians of the Pole. Look carefully and you will notice that Kochab is slightly orange when compared to Polaris. Check with binoculars. © Rob Peeling, CaDAS, 2007 version 2.0 Wynyard Planetarium & Observatory PUBLIC OBSERVING – Winter Polaris, Kochab and Pherkad mark the constellation Ursa Minor, the Little Bear.
    [Show full text]
  • Information Bulletin on Variable Stars
    COMMISSIONS AND OF THE I A U INFORMATION BULLETIN ON VARIABLE STARS Nos November July EDITORS L SZABADOS K OLAH TECHNICAL EDITOR A HOLL TYPESETTING K ORI ADMINISTRATION Zs KOVARI EDITORIAL BOARD L A BALONA M BREGER E BUDDING M deGROOT E GUINAN D S HALL P HARMANEC M JERZYKIEWICZ K C LEUNG M RODONO N N SAMUS J SMAK C STERKEN Chair H BUDAPEST XI I Box HUNGARY URL httpwwwkonkolyhuIBVSIBVShtml HU ISSN COPYRIGHT NOTICE IBVS is published on b ehalf of the th and nd Commissions of the IAU by the Konkoly Observatory Budap est Hungary Individual issues could b e downloaded for scientic and educational purp oses free of charge Bibliographic information of the recent issues could b e entered to indexing sys tems No IBVS issues may b e stored in a public retrieval system in any form or by any means electronic or otherwise without the prior written p ermission of the publishers Prior written p ermission of the publishers is required for entering IBVS issues to an electronic indexing or bibliographic system to o CONTENTS C STERKEN A JONES B VOS I ZEGELAAR AM van GENDEREN M de GROOT On the Cyclicity of the S Dor Phases in AG Carinae ::::::::::::::::::::::::::::::::::::::::::::::::::: : J BOROVICKA L SAROUNOVA The Period and Lightcurve of NSV ::::::::::::::::::::::::::::::::::::::::::::::::::: :::::::::::::: W LILLER AF JONES A New Very Long Period Variable Star in Norma ::::::::::::::::::::::::::::::::::::::::::::::::::: :::::::::::::::: EA KARITSKAYA VP GORANSKIJ Unusual Fading of V Cygni Cyg X in Early November :::::::::::::::::::::::::::::::::::::::
    [Show full text]
  • The Planets for 1955 24 Eclipses, 1955 ------29 the Sky and Astronomical Phenomena Month by Month - - 30 Phenomena of Jupiter’S S a Te Llite S
    THE OBSERVER’S HANDBOOK FOR 1955 PUBLISHED BY The Royal Astronomical Society of Canada C. A. C H A N T, E d ito r RUTH J. NORTHCOTT, A s s is t a n t E d ito r DAVID DUNLAP OBSERVATORY FORTY-SEVENTH YEAR OF PUBLICATION P r i c e 50 C e n t s TORONTO 13 Ross S t r e e t Printed for th e Society By the University of Toronto Press THE ROYAL ASTRONOMICAL SOCIETY OF CANADA The Society was incorporated in 1890 as The Astronomical and Physical Society of Toronto, assuming its present name in 1903. For many years the Toronto organization existed alone, but now the Society is national in extent, having active Centres in Montreal and Quebec, P.Q.; Ottawa, Toronto, Hamilton, London, and Windsor, Ontario; Winnipeg, Man.; Saskatoon, Sask.; Edmonton, Alta.; Vancouver and Victoria, B.C. As well as nearly 1000 members of these Canadian Centres, there are nearly 400 members not attached to any Centre, mostly resident in other nations, while some 200 additional institutions or persons are on the regular mailing list of our publications. The Society publishes a bi-monthly J o u r n a l and a yearly O b s e r v e r ’s H a n d b o o k . Single copies of the J o u r n a l are 50 cents, and of the H a n d b o o k , 50 cents. Membership is open to anyone interested in astronomy. Annual dues, $3.00; life membership, $40.00.
    [Show full text]
  • Solar Writer Report for Abraham Lincoln
    FIXED STARS A Solar Writer Report for Abraham Lincoln Written by Diana K Rosenberg Compliments of:- Stephanie Johnson Seeing With Stars Astrology PO Box 159 Stepney SA 5069 Australia Tel/Fax: +61 (08) 8331 3057 Email: [email protected] Web: www.esotech.com.au Page 2 Abraham Lincoln Natal Chart 12 Feb 1809 12:40:56 PM UT +0:00 near Hodgenville 37°N35' 085°W45' Tropical Placidus 22' 13° 08°ˆ ‡ 17' ¾ 06' À ¿É ‰ 03° ¼ 09° 00° 06° 09°06° ˆ ˆ ‡ † ‡ 25° 16' 41'08' 40' † 01' 09' Œ 29' ‰ 9 10 23° ¶ 8 27°‰ 11 Ï 27° 01' ‘ ‰02' á 7 12 ‘ áá 23° á 23° ¸ 23°Š27' á Š à „ 28' 28' 6 18' 1 10°‹ º ‹37' 13° 05' ‹ 5 Á 22° ½ 27' 2 4 01' Ü 3 07° Œ ƒ » 09' 23° 09° Ý Ü 06° 16' 06' Ê 00°ƒ 13° 22' Ý 17' 08°‚ Page 23 Astrological Summary Chart Point Positions: Abraham Lincoln Planet Sign Position House Comment The Moon Capricorn 27°Cp01' 12th The Sun Aquarius 23°Aq27' 12th read into 1st House Mercury Pisces 10°Pi18' 1st Venus Aries 7°Ar27' 1st read into 2nd House Mars Libra 25°Li29' 8th Jupiter Pisces 22°Pi05' 1st Saturn Sagittarius 3°Sg08' 9th read into 10th House Uranus Scorpio 9°Sc40' 8th Neptune Sagittarius 6°Sg41' 9th read into 10th House Pluto Pisces 13°Pi37' 1st The North Node Scorpio 6°Sc09' 8th The South Node Taurus 6°Ta09' 2nd The Ascendant Aquarius 23°Aq28' 1st The Midheaven Sagittarius 8°Sg22' 10th The Part of Fortune Capricorn 27°Cp02' 12th Chart Point Aspects Planet Aspect Planet Orb App/Sep The Moon Square Mars 1°32' Separating The Moon Conjunction The Part of Fortune 0°00' Applying The Sun Trine Mars 2°02' Applying The Sun Conjunction The Ascendant
    [Show full text]
  • A Review of the Disc Instability Model for Dwarf Novae, Soft X-Ray Transients and Related Objects a J.M
    A review of the disc instability model for dwarf novae, soft X-ray transients and related objects a J.M. Hameury aObservatoire Astronomique de Strasbourg ARTICLEINFO ABSTRACT Keywords: I review the basics of the disc instability model (DIM) for dwarf novae and soft-X-ray transients Cataclysmic variable and its most recent developments, as well as the current limitations of the model, focusing on the Accretion discs dwarf nova case. Although the DIM uses the Shakura-Sunyaev prescription for angular momentum X-ray binaries transport, which we know now to be at best inaccurate, it is surprisingly efficient in reproducing the outbursts of dwarf novae and soft X-ray transients, provided that some ingredients, such as irradiation of the accretion disc and of the donor star, mass transfer variations, truncation of the inner disc, etc., are added to the basic model. As recently realized, taking into account the existence of winds and outflows and of the torque they exert on the accretion disc may significantly impact the model. I also discuss the origin of the superoutbursts that are probably due to a combination of variations of the mass transfer rate and of a tidal instability. I finally mention a number of unsolved problems and caveats, among which the most embarrassing one is the modelling of the low state. Despite significant progresses in the past few years both on our understanding of angular momentum transport, the DIM is still needed for understanding transient systems. 1. Introduction tems using Doppler tomography techniques (Steeghs et al. 1997; Marsh and Horne 1988; see also Marsh and Schwope Dwarf novae (DNe) are cataclysmic variables (CV) that 2016 for a recent review).
    [Show full text]
  • A Guide to Smartphone Astrophotography National Aeronautics and Space Administration
    National Aeronautics and Space Administration A Guide to Smartphone Astrophotography National Aeronautics and Space Administration A Guide to Smartphone Astrophotography A Guide to Smartphone Astrophotography Dr. Sten Odenwald NASA Space Science Education Consortium Goddard Space Flight Center Greenbelt, Maryland Cover designs and editing by Abbey Interrante Cover illustrations Front: Aurora (Elizabeth Macdonald), moon (Spencer Collins), star trails (Donald Noor), Orion nebula (Christian Harris), solar eclipse (Christopher Jones), Milky Way (Shun-Chia Yang), satellite streaks (Stanislav Kaniansky),sunspot (Michael Seeboerger-Weichselbaum),sun dogs (Billy Heather). Back: Milky Way (Gabriel Clark) Two front cover designs are provided with this book. To conserve toner, begin document printing with the second cover. This product is supported by NASA under cooperative agreement number NNH15ZDA004C. [1] Table of Contents Introduction.................................................................................................................................................... 5 How to use this book ..................................................................................................................................... 9 1.0 Light Pollution ....................................................................................................................................... 12 2.0 Cameras ................................................................................................................................................
    [Show full text]
  • Present Status and Future Directions of the EVN
    http://www.evlbi.org/ Present status and future directions of the EVN Michael Lindqvist, Onsala Space Observatory Zsolt Paragi, JIVE Onsala Space Observatory http://www.evlbi.org/ Thanks Tasso! Onsala Space Observatory http://www.evlbi.org/ VLBI science • Radio jet & black hole physics • Radio source evolution • Astrometry • Galactic and extra-galactic masers • Gravitational lenses • Supernovae and gamma-ray-burst studies • Nearby and distant starburst galaxies • Nature of faint radio source population • HI absorption studies in AGN • Space science VLBI • Transients • SETI Onsala Space Observatory http://www.evlbi.org/ Description of the EVN • The European VLBI Network (EVN) was formed in 1980. Today it includes 15 major institutes, including the Joint Institute for VLBI ERIC, JIVE • JIVE operates EVN correlator. JIVE is also involved in supporting EVN users and operations of EVN as a facility. JIVE has officially been established as an European Research Infrastructure Consortium (ERIC). • The EVN operates an “open sky” policy • No standing centralised budget for the EVN - distributed European facility Onsala Space Observatory http://www.evlbi.org/ The network Onsala Space Observatory http://www.evlbi.org/ EVN and e-VLBI From tape reel to intercontinental light paths • Pieces falling into place around 2003: – Introduction of Mark5 recording system (game changer) by Haystack Observatory – Emergence of high bandwidth optical fibre networks e-VLBI JIVE Hot scienceJIVE • The development of e-VLBI has been spearheaded by the JIVE/EVN (EXPReS, Garrett) • In this way, the EVN/JIVE is a recognized SKA pathfinder Onsala Space Observatory http://www.evlbi.org/ e-VLBI - rapid turn-around • e-VLBI has made rapid turn-around possible – X-ray, γ-ray binaries in flaring states (including novae) – AGN γ-ray outbursts — locus of VHE emission – Other high-energy flaring (e.g., Crab) – Outbursts in Mira variables (spectral-line) – Just-exploded GRBs, SNe – Binaries (incl.
    [Show full text]
  • N93-13593 Lunar Optical Telescopes: an Historical Perspective
    N93-13593 LUNAR OPTICAL TELESCOPES: AN HISTORICAL PERSPECTIVE Stewart W. Johnson BDM International, Inc. 1801 Randolph Road, S.E. Albuquerque, NM 87106 Abstract There is a long history of thought and discussion on the possibilities of astronomical observatories on the Moon. Numerous ideas have been suggested and a variety of concepts have resulted for lunar optical telescopes. This paper reviews some of the ideas and efforts of individuals and working groups including Hershel, Clarke, Malina, Herbig, and Hess; working groups of the 1960s; and recent initiatives of Burke, Burns, and others. The enhanced technologies of the 1980s and 1990s can make past dreams of lunar observatories come to reality in the 21st century. That an astronomical observatory on the Moon offers the potential advantages of emplacement on a stable platform in an environment unencumbered by atmospheric obscurations has long been recognized. The National Academy of Sciences report, Astronomy and Astroohvsics for the 1980s, listed seven promising programs for the 1990s and beyond. All of these programs involved space-based observations and one of the programs was entitled Astronomical Observations on the Moon. The report states: The Moon offers certain decisive advantages as a base for astronomical observations. In particular the far side of the Moon provides protection from the radio interference from sources on or near Earth and therefore has great potential for radio astronomy. Shielded at all times from earthlight, sites on the far side of the Moon are also shielded from sunlight for substantial portions of each month and thus offer advantages for optical and infrared observations requiring the darkest possible sky.
    [Show full text]
  • GTO Keypad Manual, V5.001
    ASTRO-PHYSICS GTO KEYPAD Version v5.xxx Please read the manual even if you are familiar with previous keypad versions Flash RAM Updates Keypad Java updates can be accomplished through the Internet. Check our web site www.astro-physics.com/software-updates/ November 11, 2020 ASTRO-PHYSICS KEYPAD MANUAL FOR MACH2GTO Version 5.xxx November 11, 2020 ABOUT THIS MANUAL 4 REQUIREMENTS 5 What Mount Control Box Do I Need? 5 Can I Upgrade My Present Keypad? 5 GTO KEYPAD 6 Layout and Buttons of the Keypad 6 Vacuum Fluorescent Display 6 N-S-E-W Directional Buttons 6 STOP Button 6 <PREV and NEXT> Buttons 7 Number Buttons 7 GOTO Button 7 ± Button 7 MENU / ESC Button 7 RECAL and NEXT> Buttons Pressed Simultaneously 7 ENT Button 7 Retractable Hanger 7 Keypad Protector 8 Keypad Care and Warranty 8 Warranty 8 Keypad Battery for 512K Memory Boards 8 Cleaning Red Keypad Display 8 Temperature Ratings 8 Environmental Recommendation 8 GETTING STARTED – DO THIS AT HOME, IF POSSIBLE 9 Set Up your Mount and Cable Connections 9 Gather Basic Information 9 Enter Your Location, Time and Date 9 Set Up Your Mount in the Field 10 Polar Alignment 10 Mach2GTO Daytime Alignment Routine 10 KEYPAD START UP SEQUENCE FOR NEW SETUPS OR SETUP IN NEW LOCATION 11 Assemble Your Mount 11 Startup Sequence 11 Location 11 Select Existing Location 11 Set Up New Location 11 Date and Time 12 Additional Information 12 KEYPAD START UP SEQUENCE FOR MOUNTS USED AT THE SAME LOCATION WITHOUT A COMPUTER 13 KEYPAD START UP SEQUENCE FOR COMPUTER CONTROLLED MOUNTS 14 1 OBJECTS MENU – HAVE SOME FUN!
    [Show full text]