DOCSLIB.ORG

Star Dust National Capital Astronomers, Inc

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Star Dust National Capital Astronomers, Inc Star Dust National Capital Astronomers, Inc. January 2011 Volume 69, Issue 5 http://capitalastronomers.org Next Meeting January 2011: Ruben Kier When: Sat. Jan. 8, 2011 Best Targets for Winter Astrophotography Time: 7:30 pm Abstract: You may have thought that spending all night photographing an Where: UM Observatory obscure celestial object takes you away from the fun of visual astronomy. Well, be prepared for a surprise. Processing and studying your images can Speaker: Ruben Kier enrich your visual experiences. Learn how emission nebula are more extensive that we thought, and why reflection nebula have complex colors. Table of Contents Find out how to see colors in the stars of bright open clusters. Discover why the individual stars that sparkle in a globular cluster are mostly red giants. Preview of Jan. 2011 Talk 1 Understand what makes a supernova glow at the eyepiece….it’s not what you Science News 2 may first suspect. Ruben Kier takes you on an exploration of the cosmos through dozens of his own photographs, obtained through popular amateur Moon High in Winter 3 telescopes that you may already own! Occultations 5 APS Talk Jan. 19 6 Calendar 7 Directions to Dinner/Meeting Members and guests are invited to join us for dinner at the Garden Restaurant located in the UMUC Inn & Conference Center, 3501 University Blvd E. The meeting is held at the UM Astronomy Observatory on Metzerott Rd about halfway between Adelphi Rd and University Blvd. Need a Ride? Please contact Jay Miller, 240-401- 8693, if you need a ride from the metro to dinner or to the meeting at the observatory. Please try to let him know in advance by e-mail at [email protected]. Observing after the Meeting Following the meeting, members and guests are welcome to tour through the Observatory. Weather-permitting, several of the telescopes will also be set up for viewing. Star Dust © 2011. Star Dust may be reproduced with credit to National Capital Astronomers, Inc. January 2011 Vol 69, Iss 5 2 Biography: Ruben Kier's photos, articles, and letters have appeared in Star Dust is published ten Astronomy, Sky & Telescope, and AstroPhoto Insight magazines. He serves on the Astronomical Advisory Council of the University of Florida. Last times yearly September through year, Ruben summarized a decade of experience with CCD imaging in his June, by the National Capital book, The 100 Best Astrophotography Targets: A Monthly Guide for CCD Astronomers, Inc. (NCA). Imaging with Amateur Telescopes. His goal has been to show how amateur astronomers, using moderately priced equipment, can obtain excellent images rivaling those obtained with the most costly telescopes. More of ISSN: 0898-7548 Ruben’s images are available on his website, http://www.stardoctor.org. Editor: Michael Chesnes Editorial Advisors: Elizabeth Warner Jeffrey Norman Wayne Warren Harold Williams John D. Gaffey, Jr. PDF Distributor: Jay Miller Please Get Star Dust Electronically NCA members able to receive Star Dust, the newsletter of the NCA, via e-mail as a PDF file attachment, instead of hardcopy via U.S. Mail, can save NCA a considerable amount of money on the printing and postage in the production of Star December 22, 2010 Lunar Eclipse Dust (the NCA’s single largest Canon 5D Mark II, 189mm, f5, 4sec, ISO400, White Balance set to Sunlight. expense) and also save some trees. Photo Credit: Brian Doty/George Mason University. If you can switch from paper to digital, please contact Michael L. Science News Brabanski, the NCA Sec-Treasurer, Thank you Nancy Grace Roman for finding these articles. at [email protected] or 301-649-4328 (h). City Light Pollution Affects Air Pollution Thank you! International Dark Sky Association Wed, 15 Dec 2010 Reminder Excess light at night can contribute to air pollution, according to a study by After the meeting, everyone is invited scientists at the National Oceanic and Atmospheric Administration (NOAA) to join us at Plato's Diner in College and the Cooperative Institute for Research in Environmental Sciences Park. Plato's is located at 7150 (CIRES) at the University of Colorado that uplight from outdoor lighting that Baltimore Ave. (US Rt. 1 at Calvert contributes to sky glow over cities also interferes with chemical reactions that Rd.), just south of the university's naturally clean the air during nighttime hours. campus. What if it's clear and you want to stick around and observe? Every night, chemicals from vehicle exhaust and other human created No problem -- just come over when sources are broken down and prevented from becoming smog, ozone, or you're through. This is very informal, other irritants by a form of nitrogen oxide called the nitrate radical. Sunlight and we fully expect people to wander destroys the naturally occurring nitrate radical, so this process occurs only in in and out. hours of darkness. Continued on Page 6 Star Dust © 2011. Star Dust may be reproduced with credit to National Capital Astronomers, Inc. January 2011 Vol 69, Iss 5 3 2010-2011 Officers Why is the Moon so High in the Sky in Winter? President: And was it in fact directly overhead near the beginning of the Joseph C. Morris Dec. 21 lunar eclipse? [email protected] 703-620-0996 (h) Special thanks to Guy Brandenburg for allowing me to adapt the Dec. 703-983-5672 (w) 22, 2010 entry from his blog: gfbrandenburg.wordpress.com All editorial changes are mine. – Michael Chesnes Vice-President: John Hornstein I have from time to time noticed, and marveled at, the fact that during the [email protected] winter, the Moon at times appears like it’s almost directly overhead. Let me 301-593-1095 (h) emphasize that: to my unaided, subjective vision, without taking the trouble to measure it, during the winter, the Moon sometimes appears to me to be Secretary-Treasurer: directly overhead (at zenith). Michael L. Brabanski [email protected] However, everything I know about astronomy of the Solar System tells me 301-649-4328 (h) that this is probably impossible, simply because we do not live in the Tropics (with a capital T: the zone between the Tropic of Cancer and the Tropic of Capricorn). That’s the only part of our planet where the sun is ever directly Asst. Secretary-Treasurer: overhead. (Don’t believe me? Use your internet resource skills and look it up.) Jeffrey B. Norman [email protected] If you live in Washington, the Sun will never appear directly over your house, no matter where you live in Washington, DC, and no matter how hot it may Trustees: feel in the middle of summer. • Wayne Warren (2011) • Walter Faust (2012) And I figured that if the Sun and the Earth and the Moon were all aligned with • Benson Simon (2013) each other, as in last night’s lunar eclipse, then the Moon would appear in our • Andrew Seacord (2014) sky here in Washington as if it had simply traded places with the Sun for a while, and was at the same elevation. And that elevation isn’t all that high. Appointed Officers and Or so I thought. Committee Heads: Exploring the Sky Was I suffering from a version of the famous ‘Moon effect’? (Which is a Joseph C. Morris poorly-understood but almost-universal optical illusion about the apparent size [email protected] of the Moon, a visual hallucination of sorts, caused by some internal human visual processing “bug” inside the various centers responsible for actually Telescope Making interpreting the photons and light waves that enter one’s eyes.) Guy Brandenburg [email protected] Or is everybody else normal and it’s just me? Or was the Moon, in fact, at the 202-635-1860 zenith? Or just very close to it, but within the theoretical and experimental range of error for this sort of thing? NCA Webmaster Harold Williams I am going to try to settle this in two ways. First of all, theoretically. [email protected] 240-567-1463 (w) I used a rather widely-used piece of instructional geometry software called 301-565-3709 (h) “Geometer’s Sketchpad” (version 5 in this case) and a couple of drawing and painting programs. I also used Google Earth to find out where on Earth are Meeting Facilities the places that are directly south of Washington and are on the Tropic of Jay H. Miller Cancer or on the Equator, as well as the spot on our planet that is [email protected] diametrically opposite in position to Washington, DC. 240-401-8693 I was rather surprised to find out where those places were. They weren’t Star Dust Editor really where I expected, and I of all people should have known better. Michael Chesnes For example, I thought I remembered that Havana, Cuba, was just inside the [email protected] Tropics, but Miami, Florida, was just north of the Topic of Cancer. 301-313-0588 Continued on Page 4 Star Dust © 2011. Star Dust may be reproduced with credit to National Capital Astronomers, Inc. January 2011 Vol 69, Iss 5 4 Continued from Page 3 And I also remembered having been to some places in Florida that were south of DC. So I figured that the Tropic of Cancer would intersect our DC line of longitude (about 77 degrees west) somewhere in the water between Havana and Miami. Surprise: not very close. Just for fun, try guessing or figuring out the answer yourself. The answer is next to the diagram below, at (1). And directly south of DC, on the equator? I always figured it would be somewhere in Brazil. No surprise this time, I was wrong again.
Load more

Recommended publications
  • 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.
    [Show full text]
  • Lecture 26 Pre-Main Sequence Evolution
    Lecture 26 Low-Mass Young Stellar Objects 1. Nearby Star Formation 2. General Properties of Young Stars 3. T Tauri Stars 4. Herbig Ae/Be Stars References Adams, Lizano & Shu ARAA 25 231987 Lada OSPS 1999 Stahler & Palla Chs. 17 & 18 Local Star Forming Regions Much of our knowledge of star formation comes from a few nearby regions Taurus-Auriga & Perseus – 150 pc low mass (sun-like) stars Orion – 450 pc high & low mass stars [Grey – Milky Way Black – Molecular clouds] Representative for the Galaxy as a whole? Stahler & Palla Fig 1.1 PERSEUS with famous objects AURIGA NGC 1579 B5 IC 348 NGC 1333 TMC-1 T Tau L1551 TAURUS Taurus, Auriga & Perseus • A cloud complex rich in cores & YSOs • NGC1333/IC 348 • Pleiades •TMC-1,2 • T Tauri & other TTSs • L 1551 Ophiuchus Wilking et al. 1987 AJ 94 106 CO Andre PP IV Orion L1630 L1630 star clusters L1630 in Orion NIR star clusters on CS(2-1) map E Lada, ApJ 393 25 1992 4 M(L1630) ~ 8x10 Msun 5 massive cores (~ 200 Msun) associated with NIR star clusters 2. General Properties Young stars are associated with molecular clouds. Observations are affected by extinction, which decreases with increasing wavelength. Loosely speaking, we can distinguish two types: Embedded stars - seen only at NIR or longer wavelengths, usually presumed to be very young Revealed stars - seen at optical wavelengths or shorter, usually presumed to be older What makes young stars particularly interesting is Circumstellar gas and dust – both flowing in as well as out, e.g., jets, winds, & disks.
    [Show full text]
  • 1949 Handbook of the British Astronomical Association
    THE HANDBOOK OF THE BRITISH ASTRONOMICAL ASSOCIATION 1 9 4 9 1948 NOVEMBER Price to Members 3s. N on Members 5s. CONTENTS Preface ... ... ... ... ... ... ... 1 Planetary Diagram ... ... ... ' ... 2 V i s i b i l i t y o f P l a n e t s ....................................................................... ........................................................................ 3 Tim e Reckoning .........................! ............................ ........................................................................ 4 S u n , 1 9 4 9 ............................................................................................................................................................... 5 Eclipses, 1949 .................................................................... .. ............................_ .................................. 8 M o o n , 1 9 4 9 . ....................................................................... ............................ 9 L i b r a t i o n ............................................................................................. .................................................. 1 0 O b s e r v a t i o n o f O c c u l t a t i o n s . .................................................................................................................... 1 0 L unar O ccultations, 1949 ........................... .................................................. 1 2 A p p e a r a n c e o f P l a n e t s ................................................................... ....................................................................
    [Show full text]
  • Download This Article in PDF Format
    A&A 397, 693–710 (2003) Astronomy DOI: 10.1051/0004-6361:20021545 & c ESO 2003 Astrophysics Near-IR echelle spectroscopy of Class I protostars: Mapping Forbidden Emission-Line (FEL) regions in [FeII] C. J. Davis1,E.Whelan2,T.P.Ray2, and A. Chrysostomou3 1 Joint Astronomy Centre, 660 North A’oh¯ok¯u Place, University Park, Hilo, Hawaii 96720, USA 2 Dublin Institute for Advanced Studies, School of Cosmic Physics, 5 Merrion Square, Dublin 2, Ireland 3 Department of Physical Sciences, University of Hertfordshire, Hatfield, Herts AL10 9AB, UK Received 27 August 2002 / Accepted 22 October 2002 Abstract. Near-IR echelle spectra in [FeII] 1.644 µm emission trace Forbidden Emission Line (FEL) regions towards seven Class I HH energy sources (SVS 13, B5-IRS1, IRAS 04239+2436, L1551-IRS5, HH 34-IRS, HH 72-IRS and HH 379-IRS) and three classical T Tauri stars (AS 353A, DG Tau and RW Aur). The parameters of these FEL regions are compared to the characteristics of the Molecular Hydrogen Emission Line (MHEL) regions recently discovered towards the same outflow sources (Davis et al. 2001 – Paper I). The [FeII] and H2 lines both trace emission from the base of a large-scale collimated outflow, although they clearly trace different flow components. We find that the [FeII] is associated with higher-velocity gas than the H2, and that the [FeII] emission peaks further away from the embedded source in each system. This is probably because the [FeII] is more closely associated with HH-type shocks in the inner, on-axis jet regions, while the H2 may be excited along the boundary between the jet and the near-stationary, dense ambient medium that envelopes the protostar.
    [Show full text]
  • Arxiv:0709.4613V2 [Astro-Ph] 16 Apr 2008 .Quirrenbach A
    Astronomy and Astrophysics Review manuscript No. (will be inserted by the editor) M. S. Cunha · C. Aerts · J. Christensen-Dalsgaard · A. Baglin · L. Bigot · T. M. Brown · C. Catala · O. L. Creevey · A. Domiciano de Souza · P. Eggenberger · P. J. V. Garcia · F. Grundahl · P. Kervella · D. W. Kurtz · P. Mathias · A. Miglio · M. J. P. F. G. Monteiro · G. Perrin · F. P. Pijpers · D. Pourbaix · A. Quirrenbach · K. Rousselet-Perraut · T. C. Teixeira · F. Th´evenin · M. J. Thompson Asteroseismology and interferometry Received: date M. S. Cunha and T. C. Teixeira Centro de Astrof´ısica da Universidade do Porto, Rua das Estrelas, 4150-762, Porto, Portugal. E-mail: [email protected] C. Aerts Instituut voor Sterrenkunde, Katholieke Universiteit Leuven, Celestijnenlaan 200 D, 3001 Leuven, Belgium; Afdeling Sterrenkunde, Radboud University Nijmegen, PO Box 9010, 6500 GL Nijmegen, The Netherlands. J. Christensen-Dalsgaard and F. Grundahl Institut for Fysik og Astronomi, Aarhus Universitet, Aarhus, Denmark. A. Baglin and C. Catala and P. Kervella and G. Perrin LESIA, UMR CNRS 8109, Observatoire de Paris, France. L. Bigot and F. Th´evenin Observatoire de la Cˆote d’Azur, UMR 6202, BP 4229, F-06304, Nice Cedex 4, France. T. M. Brown Las Cumbres Observatory Inc., Goleta, CA 93117, USA. arXiv:0709.4613v2 [astro-ph] 16 Apr 2008 O. L. Creevey High Altitude Observatory, National Center for Atmospheric Research, Boulder, CO 80301, USA; Instituto de Astrofsica de Canarias, Tenerife, E-38200, Spain. A. Domiciano de Souza Max-Planck-Institut f¨ur Radioastronomie, Auf dem H¨ugel 69, 53121 Bonn, Ger- many. P. Eggenberger Observatoire de Gen`eve, 51 chemin des Maillettes, 1290 Sauverny, Switzerland; In- stitut d’Astrophysique et de G´eophysique de l’Universit´e de Li`ege All´ee du 6 Aoˆut, 17 B-4000 Li`ege, Belgium.
    [Show full text]
  • NCRAL Northern Lights Winter 2021
    who have earned pins and certificates galore. Nothing seems INSIDE THIS ISSUE OF Northern Lights to keep these intrepid observers down. Would that all other astronomy clubs had such active members when it comes to NCRAL Chair’s Message…..............................……………………1 observing! (Perhaps there are, but they aren’t telling!) NCRAL Financial Statement Autumn 2020………………….……2 Looking Ahead to 2021 NCRAL 2021 May 7-8……………………..………………………..………2 Call for 2021 NCRAL Nominations & Applications……….......3 NCRAL 2021 is scheduled for Friday/Saturday, May 7-8, NCRAL Seasonal Messier Marathon Awards…………….………5 and I’m looking forward to it. I hope you are too. The Noteworthy!……………………………………………………………………6 convention will be hosted by the Neville Public Museum Profiles in Amateur Astronomy: Alan Sheidler (PAC)…..……7 Astronomical Society in De Pere, Wisconsin, just south of Club Leadership for Our Time by Carl J. Wenning………...……8 Green Bay assuming the pandemic doesn’t interfere as it did Radio Astronomy by Tim Stone…………………………….……..…10 last spring. I’m already making plans to attend NCRAL 2021 2021 Rising and Setting Charts by Jeffrey L. Hunt……….….14 and hope you are doing the same. Later in this newsletter Astronomical League 75th Anniversary Coming……..…….…17 you’ll find information about speakers, activities, and Mars 2021: Until Conjunction by Jeffrey L. Hunt.………..….18 facilities. Get this event into your calendar now so you can Future NCRAL Conventions…………………………………..……….22 avoid a schedule conflict. Seasonal Messier Mini Marathon Observing Program……22 Don’t forget to think about nominations for Regional Add Your Email Address to NCRAL Member Database…...23 officers. This year we need to elect Chair and Vice Chair to NCRAL Website………………………………………………………….….23 two-year terms and vote for a Secretary-Treasurer to Regional Officer & Leader Contact Information………..……24 complete the second year of a two-year term that began in May 2020.
    [Show full text]
  • Star Dust National Capital Astronomers, Inc
    Star Dust National Capital Astronomers, Inc. February 2011 Volume 69, Issue 6 http://capitalastronomers.org Next Meeting February 2011: Brian Jackson NASA Goddard Space Flight Center When: Sat. Feb. 12, 2011 From Extrasolar Gas Giant to Hot, Rocky Planet Time: 7:30 pm Where: UM Observatory Abstract: In the last several years, astronomers have found more than 400 Speaker: Brian Jackson, planets orbiting stars other than our Sun. These extra-solar planets display a NASA GSFC remarkable diversity of orbital and physical properties, and many of these planets are unlike planets in our own Solar System. Table of Contents Even in this exotic menagerie, close-in extra-solar planets stand out as Preview of Feb. 2011 Talk 1 unusual and puzzling. These planets have masses ranging from several Earth masses to many Jupiter masses, but have orbits that are at least 10 times NCA Milling Machine 2 closer to their host stars than the Earth is to the Sun. Because they are the Occultations 5 easiest planets to detect, close-in planets provide much of our current information about the physical and orbital properties of extra-solar planets, so Science News 6 understanding their origin and evolution is important for understanding extra- Science Fairs 6 solar planets in general. Calendar 7 Being so close to their host stars, close-in planets are susceptible to the effects of tides, which can affect the planets' orbital and thermal evolution. For example, tides can circularize orbits and can cause them to decay. Directions to Dinner/Meeting Members and guests are invited to Continued on Page 2 join us for dinner at the Garden Restaurant located in the UMUC Inn & Conference Center, 3501 University Blvd E.
    [Show full text]
  • Low Mass Star Formation in the Taurus-Auriga Clouds
    Handbook of Star Forming Regions Vol. I Astronomical Society of the Pacific, 2008 Bo Reipurth, ed. Low Mass Star Formation in the Taurus-Auriga Clouds Scott J. Kenyon Smithsonian Astrophysical Observatory, 60 Garden Street Cambridge, MA 02138, USA Mercedes Gomez´ Observatorio Astronomico,´ Universidad Nacional de Cor´ doba Laprida 854, 5000 Cor´ doba, Argentina Barbara A. Whitney Space Science Institute, 4750 Walnut Street, Suite 205 Boulder, CO 80301, USA Abstract. We review the history and structure of star formation in the Taurus-Auriga dark clouds. Our discussion includes a summary of the macroscopic cloud properties, the population of single and binary pre-main sequence stars, the properties of jets and outflows, and detailed summaries of selected individual objects. We include compre- hensive tables of dark clouds, young stars, and jets in the clouds. 1. Overview In October 1852, J. R. Hind `noticed a very small nebulous looking object' roughly 1800 west of a tenth magnitude star in Taurus. Over the next 15 years, the nebula slowly faded in brightness and in 1868 vanished completely from the view of the largest tele- scopes. O. Struve then found a new, smaller and fainter, nebulosity roughly 40 west of Hind's nebula. While trying to recover these nebulae, Burnham (1890, 1894) discov- ered a small elliptical nebula surrounding T Tau (Figure 1). Spectra of Hind's nebula revealed emission from either Hβ or [O III] λ5007, demonstrating that the nebula was gaseous as in novae and planetary nebulae. At about the same time, Knott (1891) reported 4 magnitude variability in the `ruddy' star associated with these nebulae, T Tauri.
    [Show full text]
  • Meteor 0 2 Csillagászati Évkönyv 2011 V Y N Ö K V É
    1 1 meteor 0 2 csillagászati évkönyv 2011 v y n ö k v é i t a z s á g a l l i s c r o e t e m ISSN 0866 - 2851 9 7 7 0 8 6 6 2 8 5 0 0 2 Ár: 2400 Ft A Magyar Csillagászati Egyesület lapja meteor a tengerfenéktõl a „Marsig” olvassák! meteor.mcse.hu METEOR CSILLAGÁSZATI ÉVKÖNYV 2011 METEOR CSILLAGÁSZATI ÉVKÖNYV 2011 MCSE – 2010. NOVEMBER METEOR CSILLAGÁSZATI ÉVKÖNYV 2011 MCSE – 2010. NOVEMBER meteor csillagászati évkönyv 2011 Szerkesztette: Benkõ József Mizser Attila Magyar Csillagászati Egyesület www.mcse.hu Budapest, 2010 METEOR CSILLAGÁSZATI ÉVKÖNYV 2011 MCSE – 2010. NOVEMBER Az évkönyv kalendárium részének összeállításában közremûködött: Butuza Tamás Görgei Zoltán Hegedüs Tibor Kaposvári Zoltán Kovács József Sánta Gábor Sárneczky Krisztián Szabó Sándor Szôllôsi Attila A kalendárium csillagtérképei az Ursa Minor szoftverrel készültek. www.ursaminor.hu Az elongációs grafikonok készítéséhez egyedi szoftvert használtunk, melyet Butuza Tamás készített. Szakmailag ellenôrizte: Szabados László A kiadvány támogatói: Mindazok, akik az SZJA 1%-ával támogatják a Magyar Csillagászati Egyesületet. Adószámunk: 19009162-2-43 Felelôs kiadó: Mizser Attila Nyomdai elôkészítés: Kármán Stúdió, www.karman.hu Nyomtatás, kötészet: OOK-Press Kft., www.ookpress.hu Terjedelem: 20 ív fekete-fehér+1ívszínes melléklet 2010. november ISSN 0866-2851 METEOR CSILLAGÁSZATI ÉVKÖNYV 2011 MCSE – 2010. NOVEMBER Tartalom Bevezetô ................................................... 7 Kalendárium ............................................... 11 Cikkek Kálmán Béla: A napkutatás új eredményeibôl .................... 175 Kovács József: „Theoria motus corporum coelestium…” ........... 187 Benkô József – Szabó Róbert: Idôsorok az ûrbôl .................. 207 Kun Mária: Új ablakok a csillagközi anyagra ..................... 233 Hegedüs Tibor: A Tejútrendszer napjainkban .................... 240 Budavári Tamás: A Világegyetem színe ........................
    [Show full text]
  • Csillagászati Évkönyv 2010 a Magyar Csillagászati Egyesület Lapja Meteor a Tengerfenéktõl a Marsig”Olvassák! “
    meteor csillagászati évkönyv 2010 A Magyar Csillagászati Egyesület lapja meteor a tengerfenéktõl a Marsig”olvassák! “ meteor.mcse.hu METEOR CSILLAGÁSZATI ÉVKÖNYV 2010 METEOR CSILLAGÁSZATI ÉVKÖNYV 2010 MCSE – 2009. OKTÓBER METEOR CSILLAGÁSZATI ÉVKÖNYV 2010 MCSE – 2009. OKTÓBER meteor csillagászati évkönyv 2010 Szerkesztette: Benkõ József Mizser Attila Magyar Csillagászati Egyesület www.mcse.hu Budapest, 2009 METEOR CSILLAGÁSZATI ÉVKÖNYV 2010 MCSE – 2009. OKTÓBER Az évkönyv kalendárium részének összeállításában közremûködött: Bartha Lajos Butuza Tamás Görgei Zoltán Hegedüs Tibor Kaposvári Zoltán Kárpáti Ádám Kovács József Landy-Gyebnár Mónika Jean Meeus Sánta Gábor Sárneczky Krisztián Szabó Sándor Szôllôsi Attila Tóth Imre A kalendárium csillagtérképei az Ursa Minor szoftverrel készültek. www.ursaminor.hu Az elongációs grafikonok készítéséhez egyedi szoftvert használtunk, melyet Butuza Tamás készített. Szakmailag ellenôrizte: Szabados László A kiadvány támogatói: Mindazok, akik az SZJA 1%-ával támogatják a Magyar Csillagászati Egyesületet. Adószámunk: 19009162-2-43 Felelôs kiadó: Mizser Attila Nyomdai elôkészítés: Kármán Stúdió, www.karman.hu Nyomtatás, kötészet: OOK-Press Kft., www.ookpress.hu Terjedelem: 21 ív + 8 oldal színes melléklet 2009. november ISSN 0866-2851 METEOR CSILLAGÁSZATI ÉVKÖNYV 2010 MCSE – 2009. OKTÓBER Tartalom Bevezetô ................................................... 7 Kalendárium ............................................... 11 Cikkek Székely Péter: Újdonságok kompakt objektumokról ............... 181 Sódorné Bognár
    [Show full text]
  • The Annual Guide to the Wonders of the Night Sky Visible from Ireland During the Year Ahead 12Th Year of Publication by Liam Smyth and John Flannery
    5 The annual guide to the wonders of the night sky visible from Ireland during the year ahead 12th year of publication by Liam Smyth and John Flannery monthly phenomena ... the year in review ... naked-eye comets in 2004 ... space missions ... detailed notes on celestial highlights ... the June 8th transit of Venus ... and lots more Published by the Irish Astronomical Society, P.O. Box 2547, Dublin 14 — (01) 455 7801 (evenings only) we’re also on the Web and e-mail — www.esatclear.ie/~ias or [email protected] page 1 REETINGS to all fellow astronomers and wel- It is fair to say that those with even just a casual interest in Gcome to the twelfth annual edition of Sky-High. the night sky should find a year of fascinating reading within Each year we lead with a general introduction to help set the pages of Sky-High 2004. That is not to say we have cov- the scene for those new to the hobby. We ask the indul- ered all phenomena visible as this guide is generally pitched gence of established readers in this regard. toward naked eye and binocular observers. A subscription to a We have carried out an expansion of the content this monthly astronomy magazine though will keep you up-to-date year to provide more comprehensive notes on particular on transient phenomena such as comets or novae, as well as phenomena. This has allowed us to cater for the budding supplying more detailed data on solar system objects. sky watcher taking their first steps in the hobby while giv- As always, feel free to contact us through the IAS with ing a sufficient level of detail to satisfy the more serious your comments or for further information on any of the sights amateur astronomer.
    [Show full text]
  • X-Ray Emitting T Tauri Stars in the L1551 Cloud
    X-ray Emitting T Tauri Stars in the L1551 Cloud Lee Carkner, Eric D= Feigels_on . Department of Astronomy _ Astrophysics, Pennsylvania State University, University Park PA 16802 Katsuii Koyama Department of Physics, Kyoto-University, Kyoto Japan Thierry Montmerle Service d'Astrophysique, Centre d'Etudes de Saclay, Gif-sur-Yvette 91101 France I. Neill Reid Palomar Observatory, 105-24, California Institute of Technology, Pasadena CA 91125 2 ABSTRACT Low mass pre-main sequence stars in the nearby Lynds 1551 star forming cloud are studied with the ROSAT and ASCA X-ray satellites. An 8 ksec ROY;AT image reveals 38 sources including 7 well-known T Tauri stars, 2 likely new weak-lined T Tauri stars, 5 potential new weak-lined T Tauri stars, one is a young B9 star, and the remaining sources are unrelated to the cloud or poorly identified. A 40 ksec AY;CA image of the cloud detects seven of the ROSAT sources. Spectral fitting of the brighter X-ray emitting stars suggests the emission is produced in either a multi-temperature plasma, with temperatures near 0.2 and 1 keV, or a single-temperature plasma with low metal abundances. XZ Tau, a young classical T Tauri star, is much stronger in AY;CA than ROSAT observations showing a harder (1.5-2.0 key) component. Timing analysis reveals all but one of the T Tauri stars are variable on timescales ranging from one hour to a year. A powerful flare, emitting 3 x 1034 ergs within a 40 minute rise and fall, was observed by ASCA on the weak-lined T Tauri star V826 Tau.
    [Show full text]