... The Trifid nebula (M20) is a bright star forming region in Sagittarius, 5000 light years from Earth. In visible light, the interstellar gas cloud is crossed by dark, obscuring dust lanes which roughly divide the glowing emission nebula into three major parts. ... Sometimes the sky itself seems to glow. ... If the glow appears as a faint band of light running across the whole sky, you are probably seeing the combined light from the billions of stars that compose our Milky Way Galaxy. ...

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... October 24, 1996 . Starbirth in the Lagoon Nebula . ... Big Throughput Camera , . ... Explanation : Stars are forming even today in the Lagoon Nebula. ... Curtains of collapsing hydrogen are shown above in green, highlighted by a special filter that isolates light from this specific atom. ... Many of the stars appear red because of the high amount of dust in the Lagoon Nebula . Red light penetrates dust clouds best, although enough dust will block all visible light and leave a dark nebula . ...

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• APOD: 2008 October 28 - The North America Nebula
• APOD: 2006 October 16 - In the Shadow of Saturn
• APOD: 2014 October 25 - Sunspots and Solar Eclipse

... Bad Astronomy . ... Bitesize Astronomy . ... Last week's Snack talked about how black holes can affect the environment around them in such a way as to be very bright . ... It's a common misconception that black holes always have matter swirling into them. ... As this matter gets closer and closer to the black hole it piles up and a large, fairly flat disk forms. This is called the accretion disk , because matter from this disk accretes (that is, falls in) on the black hole. ... 2008 Phil Plait. ...

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... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . See also images taken on November 22nd . Image taken by Andy McCrea who says, . To me the comet appears yellowish and it has gone from star-like to a . ... More images from Andy McCrea here . ... The true explanation is that a very faint comet, known as periodic comet Holmes, produced a massive outburst of material and became a million times brighter than it was just a day earlier. ... More images from Andy McCrea . ...

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• Terry Mosely's Bulletins
• ASTRONOMICAL PHENOMENA FROM MARS
• Objects in the Sky

... V838 Mon is a member of a new class of eruptive variables which appear as a peculiar novae having late K-M type spectra in their outburst. Before its outburst, it was a wide binary system of B3V type stars. ... The B3V companion was seen in the outburst in the UV spectrum taken with HST (Rauch et al., ... In the latest spectra, the light of B3V companion was predominating in the short-wave photometric bands. ... CCD blue frames of V838 Mon before the eclipse (left) and in the eclipse (right). ...

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... The larger image shows the entire nebula; the inset picture captures the complicated structure surrounding the dying star. The remarkable features of this nebula are the numerous holes in the inner shells with jets of material streaming from them. ... The multiple shells of material ejected by the dying star give this planetary nebula its odd form. ... At least four jets of material can be seen in the "full nebula" image: a pair near 6 and 12 o'clock and another near 2 and 8 o'clock. ...

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• http://www.arcetri.astro.it/~palla/ANDREAIMMAGINI/Stelle/97-33.txt
• http://www.arcetri.astro.it/~palla/ANDREAIMMAGINI/Stelle/9905a.pdf
• http://www.arcetri.astro.it/~palla/ANDREAIMMAGINI/Cosmologia/Visibile.txt

... Science User Portal . ... ESO, the European Southern Observatory . ... Travel and Contacts . Travel to ESO Headquarters . ... Travel to Guesthouse . ... Survey Telescopes . ... This video fades back and forth between views of the stellar nursery Monoceros R2 in visible and infrared light. The visible-light view was created from digitised photographs through red and blue filters forming part of the Digitized Sky Survey 2 (DSS) and the new infrared view comes from the VISTA telescope at Paranal. ...

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• VISTA Reveals the Secret of the Unicorn | ESO
• ESO - ESO-Enews #24: October 2012
• Infrared/visible crossfade of the Monoceros R2 star-forming region

... Planets . ... Earth Satellites . ... Monthly Sky Notes . ... As the sun sets in the west each evening, Jupiter, the largest planet in our Solar System, is rising in the east in the constellation of Aries, where it is visible throughout the night setting just before sunrise. ... On 28 October the Earth comes between the Sun and Jupiter, in opposition, meaning as the Sun sets in the sky Jupiter will rise. ... Also this month rising into the sky in the early hours of the morning is Mars the Red planet....

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• Stargazing in October | Astronotes
• How do galaxies form? - New discovery from European Southern Observatory |
• Leonid meteors 2011 | Astronotes

... Tonight's Sky . ... The Magazine . ... Observing . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Astronomy for Kids . ... Observing springtime deep-sky objects with a large telescope . ... Bright planets meet at dusk . ... Astronomy magazine subscribers can read the full article for free. ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter....

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• The Pacman Nebula gets some teeth | Astronomy.com
• VLT takes most detailed infrared image of the Carina Nebula | Astronomy.com
• Can snow form "snowbows" similar to rainbows? | Astronomy.com

... The Second International Astronomy Olympiad . ... Problems to solve, 8-10 Form Text of these problems is available in Russian too. ... Two stars have the same absolute magnitude. ... The orbital period of Mars is 687 days. ... See problem 2. for 8-10 Form. ... Problem to solve, 9-12 Form Text of the problem is available in Russian too. ... Problem is about Doppler-effect, to find velosities of two stars using their spectra and spectrum of our Sun, to estimate speed of the Earth moving around the Sun...

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• XV International Astronomy Olympiad, applications
• XIII International Astronomy Olympiad: Personal data questionnaire
• XII International Astronomy Olympiad: Personal data questionnaire

Program Number . ... Esther M. Hu, University of Hawaii . Near Infrared Observations of a Sample of z~6.5-6.7 Galaxies . Abstract . ... Panchromatic WFC3 survey of galaxies at intermediate z: Early Release Science program for Wide Field Camera 3. ... HST/ACS images of part of the GOODS field . ... The present program will build on these observations by using Wide-Field Camera 3 to obtain ultraviolet and near-infrared imaging, and grism spectroscopy, covering ~30% of the GOODS (South) field. ...

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• NICMOS Units Conversion Form
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• Dust disk around a black hole in galaxy NGC 7052

Supernova 2009js in NGC 918 . This page is devoted to information on Supernova 2009js in NGC 918 . Basic information on this SN, including the last reported brightness, on this Supernova can be found on the main page . Information on the original web pages for many of these images can be found on the updates and links web pages. Discovered independently by Lick Observatory Supernova Search (USA) and Koichi Itagaki (Japan). ... 2009/10/11.44 . 17.2 . ... Joseph Brimacombe . ...

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... The Pleiades star cluster, also known as the Seven Sisters and Messier 45, is a conspicuous object in the night sky with a prominent place in ancient mythology . ... The stars in the Pleiades are thought to have formed together around 100 million years ago, making them 1/50th the age of our sun, and they lie some 130 parsecs (425 light years ) away. ... Data for these stars are listed in a table below. ... Yes . ... WEBDA Pleiades cluster data . ... M45: The Pleiades Star Cluster (2007 November 18) ...

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• Star Names
• What is HISA?

... Registration form . ... Institute of Applied Astronomy of the Russian Academy of Sciences invites you to participate in the all-Russian scientific conference "Asteroid-Comet Hazard-2005" which will be held 3-7 October 2005 in St. Petersburg. ... Batrakov Yu.V. Institute of Applied Astronomy of RAS, St.Petersburg . ... Institute of Applied Astronomy of RAS . ... Finkelstein A.M. Institute of Applied Astronomy of RAS, St.Petersburg . ... Institute of Applied Astronomy of RAS, St.Petersburg . ...

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• AEarchiv (eclipses, transits)

... Its perihelion would occur on April 1, 1997, at which point the comet would be only 0.92 astronomical units from the Sun, just within the orbit of Earth. ... Taken in April 1993, the photo showed the comet over 13 astronomical units from the Sun, well beyond the orbit of Saturn. ... Hale, as in Comet Hale-Bopp, has written a book, Everybody's Comet (available through the ASP Catalog) and coordinated an Internet project, "Hale-Bopp: Live in the American Classroom." ... Anatomy of a comet. ...

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• ASP: Shadow Play: 1998's Total Solar Eclipse
• ASP: Astronomy in the News
• ASP: Why Should We Care About Exploding Stars?

... Email & phone search . ... Astrophysics Group . Graduate Research Opportunities 2016 . Astrophysics Admissions Form . ... If you are interested in applying to us then as well as submitting an application to the University of Cambridge, you will need to complete and return our own internal Astrophysics Group admissions form. ... Cambridge . ... You can choose whether to download a simple ASCII version of the application form or a Word version : . ... ASCII version of the AP admissions form. ...

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• Astrophysics Group Admissions Procedures
• FIRST Postage Stamp Server inc Contour (24 Oct 2003)
• OptInt PmWiki : PmWiki / Forms

... In 1999, there comes a year before an end of the XXth Century, when modern Cosmology and Relativistic Astrophysics appeared, evolved and formed. ... Cosmology, particle physics, relativistic astrophysics and cosmoparticle physics are widely discussed at the now being traditional International Conferences on CosmoParticle Physics "Cosmion-94", "Cosmion-96" and "Cosmion-97" held in Moscow. ... The main topics of the 4 International Conference "Cosmology.Relativistic Astrophysics. ...

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• Massive X-ray Binaries
• Banknotes at SunSITE Czech Republic
• X-ray Luminosity Evolution

The Sun's corona . ... For instance, short "plumes" rising from the polar regions of the Sun look very much like field lines coming out of the end of a bar magnet, and they therefore suggest that the Sun, in addition to the intense fields of sunspots, also has a global magnetic field like the Earth's. Arches above the . Sun's surface . ... It is brightest near sunspots, whose arched field lines apparently hamper the outflow of solar wind which carries away energy and helps cool the corona. ...

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• Comet Introduction
• Template
• Jupiter Moon Callisto

National Aeronautics and Space Administration . Lyndon B. Johnson Space Center . ... William A. Anders (Major General, USAF Reserve, Ret.) NASA Astronaut (former) . ... EDUCATION: Received a bachelor of science degree from the United States Naval Academy in 1955 and a master of science degree in Nuclear Engineering from the Air Force Institute of Technology at Wright-Patterson Air Force Base, Ohio, in 1962. ...

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• Astronaut Bio: Michael Collins
• Astronaut Bio: John E. Blaha (05/2008)
• Astronaut Bio: Shannon Lucid (02/2012)

... Dept. for Astrometry & Space Geodynamics . ... Dept. for Physics of Stars&Galaxies . ... Dept. for Physics of Planetary Systems . ... Science . ... All Pages . ... Research of the stars with planets which pass apparent star disk (transiting exoplanets). The transit method based on a detection star brightness decrease during a passing of planet in front of its disk. Observed brightness system decries when planet pass star disk and its volume depend of the relative sizes star and planet. ...

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• Pre-registration form
• Conferences - Page 3
• Internet telescope