Astronotes Armagh Planetarium's Stellar Blog! ... Stars . ... Space Flight . ... Monthly Sky Notes . ... The bright stars of Orion the Hunter are an amazing display in dark skies (Image credit Mary Bulman/Armagh Planetarium/Stellarium) . ... To locate Sirius, the brightest star in the night sky, imagine continuing the line of the Hunter?s belt down the sky towards the horizon until you come to a very bright star. ... I think the hunter Orion is the most beautiful pattern in the night sky. ...

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• stellar nursery | Astronotes
• Wonders of the February Night Sky | Astronotes
• constellations | Astronotes - Part 3

... 2003 February 6 . X-Rays from M83 . Credit: R.Soria K.Wu ( MSSL , UCL ) CXC , NASA . ... The central emission likely represents even hotter gas created by a sudden burst of massive star formation. Point-like neutron star and black hole x-ray sources , final stages in the life cycles of massive stars, also show a concentration near the center of M83 and offer further evidence for a burst of star formation at this galaxy's core . ... About APOD | ... NASA Technical Rep.: ... NASA SEU Edu. ...

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• APOD: 2013 February 7 - Comet Lemmon near the South Celestial Pole
• APOD: February 26, 1998 - A Southern Sky View
• APOD: February 24, 1999 - A Milky Way Band

... The orange dot in the above false-color drawing represents the current location of the Sun among local gas clouds in the spiral Milky Way Galaxy. These gas clouds are so thin that we usually see right through them. ... The Lyman Alpha Forest . ... Strewn throughout the universe are "trees" of hydrogen gas that absorb light from distant objects. These gas clouds leave numerous absorption lines in a distant quasar's spectra, together called the Lyman-alpha forest. ... Miranda . ... February . ...

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... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... News Feed . ... 2013 December 5th . ... Minutes of the 89th meeting of the Management Committee of the Armagh Observatory and Planetarium 21 JUNE 2013 - PDF . ... Warm, Wet and Bright October . ... AOP Annual Report and Accounts for the year ended 31 March 2013 - PDF . ... Armagh Observatory Planetarium тАУ Appointment of Members to the Management Committee - PDF . ... Armagh Observatory Annual Report 2012 - PDF . ...

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• Why Asteroid 2008 TC3 Represents a Landmark - Dr David Asher, from Armagh
• Armagh Observatory
• Southern African Large Telescope (SALT)

... ESO Science Newsletter February 2016 . ... This newsletter is a summary of recent ESO Science Announcement items. ... A new Band 9 receiver was installed inside the Swedish ESO PI receiver for Apex ( SEPIA ) at APEX in early February. ... After on-sky commissioning in late March, Science Verification (SV) observations are planned. ... The Call for Proposals for SEPIA Band 9 SV can be found here and the deadline is 12:00 CET, Friday 11 March 2016 . ... Joint ESO, ALMA, NAOJ, NRAO Workshop. ...

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• ESO - Stellar Halos 2015
• ESO - Newsletter January 2016
• The Brightness of the Night Sky

The Low Surface Brightness Galaxy HIPASS1126­72 Virginia Kilborn 1 , Erwin de Blok 1 , Lister Staveley­Smith 2 , Rachel Webster 1 1. ... The low surface brightness galaxy HIPASS1126­72 was de­ tected in the HI Parkes All Sky Survey (HIPASS). ... This galaxy represents a class of galaxies that we will readily detect in the HIPASS survey, which have low surface brightness in the optical, but are easily detectable in neutral hydrogen. ... The velocity profile from HIPASS can be seen in Figure 1(a). ...

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• The Brightest Galaxies from HIPASS
• ATNF Daily Astronomy Picture
• The HIPASS Bright Galaxy Survey

Each point in this graph represents one star in NGC 2808. The vertical axis represents the brightness (as measured through Hubble's near-infrared F814W filter) of the stars (the brightest stars near the top). The horizontal axis represents the colours of the stars, with bluer stars to the left and redder to the right (blue magnitude minus near-infrared magnitude). ...

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• http://www.astronomy.com/sitefiles/resources/image.aspx?item=%7BE5FB877C-BB98-49AF-B06E-C0C3B526E96E%7D
• http://www.astronomy.com/sitefiles/resources/image.aspx?item=%7B8DC7C6EA-0115-4BD8-9CE8-3D4F71BDED34%7D
• February 2004 | Astronomy.com

... In our presentation, the HR diagram is divided into three main components: a narrow main sequence, a broader and brighter component representing stars just evolving from the main sequence, and the luminous stars, which represent a continuum from subgiants to supergiants. ... Appeared in: Harmonizing Cosmic Distance Scales in a Post-Hipparcos Era , 101-106, 1999 . ... 1 )ESA/Space Telescope Science Institute, on assignment from the Space Sciences Division of the European Space Agency . ...

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• HST this week: 047
• NStars2A: Proper motions - the NLTT and 2MASS
• STScI Preprint #1219

Mikhail TAMM (LPTMS, Paris-11 Orsay): "Clover-leaf structures in associating polymers: a toy model for RNA folding . The clover-leaf structures under discussion are defined as follows. The polymer is supposed to bear numerous sticky centers along the chain, these centers being capable of forming thermoreversible bonds with each other. ... Now, we say that some given structure belongs to the clover-leaf type if the archs on the corresponding diagram do not intersect each other. ...

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• Serge Lando's home page

Stellar Clusters are very useful laboratories for empirically studying stellar evolution. ... All cluster stars are at the same distance . All cluster stars have the same physical age . ... CM diagram Young Cluster In this case we see the Main Sequence fully represented. The blue dots represent massive stars with short main sequence lifetimes. ... Thus, identifying the most massive star which is still on the main sequence is an effective means of determining the age of a stellar cluster. ...

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• U of O High Energy Physics Seminars
• Digital Stellar Spectra
• Low Surface Brightness Galaxy Gallery

... ftp://www.kusastro.kyoto-u.ac.jp/pub/cgmw/ : This catalog, giving about 7000 galaxies behind the Milky Way between l = 210 degrees and 250 degrees, represents a systematic search for galaxies by means of 32 film copies of the UK Schmidt Southern Infrared Atlas on the Milky Way covering about 900 square degrees. ... Japan, Vol. ... This will be distributed upon request from Astronomical Data Analysis Center of the National Astronomical Observatory of Japan and other astronomical data centers. ...

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• The Southern Sky Redshift Survey
• The ROSAT All-Sky Survey Bright Source Catalogue
• Summary

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. February 9, 1999 . A Supernova Star-Field . Credit: Hubble Heritage Team ( AURA / STScI / NASA ) . Explanation: Bright stars don't last forever. ... The above picture is a composite of recent images taken over several years. The explosion originated from a bright massive star that ran out of nuclear fuel . ... About APOD > . ...

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• Youngest Brown Dwarf Yet in Multiple Stellar System (ESO Press Release 16/00)
• APOD: February 3, 1998 - A Magellanic Mural
• Uranus' Moon Umbriel

... Home Education Classes AAA Spring Astronomy Class: The Physics of Astronomy тАУ February ? March 2016 . ... Classes . ... AAA Spring Astronomy Class: The Physics of Astronomy тАУ February - March 2016 . ... This MonthтАЩs Sky тАУ March 2016 . ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . ... A History of the First Forty Years of the Amateur Astronomers Association . ... 2016 Amateur Astronomers Association of New York Designed by Press Customizr Powered by . ...

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• AAA president Marcelo Cabrera presents AAA Amateur Astronomers Medal to Al
• Astronomy Workshop: Observing Variable Stars from the City ? February 15, 2015
• Other-Events ? Page 3 ? Amateur Astronomers Association of New York

... Emu and Egg! The Milky Way from the SouthernтАж . ... Title: Emu and Egg! The Milky Way from the Southern Cross to Scorpius seen above the ANU 24-inch telescope dome. Description: Several Aboriginal tribes see the structure of these dust and gas clouds in the Milky Way as representing an emu. ... Several Aboriginal tribes see the structure of these dust and gas clouds in the Milky Way as representing an emu. ...

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• RSAA Annual Report 1998

National Aeronautics and Space Administration . ... WILLIAM C. MCCOOL (COMMANDER, USN) . NASA ASTRONAUT (DECEASED) . ... EDUCATION: Graduated from Coronado High School, Lubbock, Texas, in 1979; received a bachelor of science degree in applied science from the US Naval Academy in 1983, a master of science degree in computer science from the University of Maryland in 1985, and a master of science degree in aeronautical engineering from the US Naval Postgraduate School in 1992. ...

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• Astronaut Bio: Robert L. Stewart
• Astronaut Bio: Michael P. Anderson 5/04

... February 2016 Monthly Meeting - The World At Night (TWAN) . Babak Tafreshi   . Thursday, Feb 11, 2016 at 8:00 PM . This month, we are pleased to welcome Babak Tafreshi, founder and director of The World At Night (TWAN) . ... He is the founder and director of The World At Night (TWAN), a board member of Astronomers Without Borders, a contributing photographer at Sky magazine and the European Southern Observatory. ... 2016 . ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

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... The department was founded in late sixties by Prof. D.Ya.Martynov, who for many years was also the director of Sternberg Astronomical Institute. At present time, the head of the department is Prof. A.M.Cherepashchuk, a pupil of D.Ya.Martynov and his successor as the director of SAI. Since Prof. Martynov, the scientific activity of the department was primarily related to binary stars. ... The department consists of 15 members most of which have Ph.D. in Astrophysics. ...

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... Circle area is proportional to the number of tweets + retweets tweets retweets . Order accounts: by user number (effectively random) by number of tweets (includes retweets) by number of followers by number of followers that also tweeted about AAS221 by number of friends that also tweeted about AAS221 . ... The top/left position is for the user with the largest number of followers, and the bottom/right is for the smallest number of followers. by number of followers that also tweeted about AAS221 . ...

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• A constellation of tweets from #AAS221
• Southern SHARC survey
• The Diffuse X-Ray Background

... A rough estimation is that in the United States there is one planetarium per 100,000 population, ranging in size from the Hayden Planetarium's 20-meter dome seating 430 people, to three-meter inflatable portable domes where children sit on the floor. ... Together dblo associates make a huge impact in the architecture, interior design and development arena in London. ... With the holidays around the corner what better way to spoil your family than with your very own private home cinema. ...

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Arecibo Observatory Technical Memo AOTM 2000­01 THE LBW FEED: THE MUELLER MATRIX IN 1999 AND 2000 Carl Heiles ABSTRACT We present measurements of the Mueller matrix and associated quantities at two epochs for 1420.4 MHz (February­March 1999 and March 2000) and one for 1665.3 MHz (March 2000). ... SUMMARY AND RESULTS In AOTM 99­01, we presented the theory and practice of deriving the Mueller matrix for the LBW system. ... Delta\Phi = \Phi XY;SKY \Gamma \Phi XY;CAL as defined in x2.1 of AOTM 99­01. ...

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• http://www.naic.edu/~astro/call_feb11.shtml
• The Pleiades
• VIRGOHI 21