... 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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A team of U.S. and German astrophysicists have made the first ever detection of X-rays coming from a comet. ... Following the initial detection, the team reported repeated X-ray emissions from the comet over the next 24 hours. ... One preliminary theory is that X-ray emission from the Sun was absorbed by a cloud of gaseous water molecules surrounding the nucleus of the comet, and then were re-emitted by the molecules in a process physicists call "fluorescence." ... Comets . ...

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• Uranus' Small Moons
• Uranus' Moon Umbriel

M1 image More About M1 Nice Color Picture . ... M16 image More About M16 HST image . ... M31 image More About M31 Nice Color Picture . ... M42 image ; M43 image More About M42/43 Nice Color CCD Picture . M51 image More About M51 Color Image of M51 M51 Supernova . M57 image More About M57 Nice Color CCD Picture Very Deep M57 Image . ... M81 image More About M81 M81 Supernova Ultraviolet Image of M81 More about Ultraviolet Imaging . M82 image More About M82 M82 False Color M82 True Color . ...

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• Formation and Evolution of Quasars

Pandora . Saturn X - 1980S26 . Pandora [pan-DOR-uh] is the fourth of Saturn's known satellites. ... Pandora is the outer shepherd satellite for Saturn's F-ring. ... Very limited data is available to analyze Pandora. ... The leading side faces forwards in the orbit of Pandora. ... Prometheus and Pandora . This image shows Prometheus and Pandora next to Saturn's F-ring. ... Stooke, P. J., "Shapes and Surface Features of Prometheus and Pandora," Earth, Moon and Planets , 62 (1993), 199-221. ...

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• Neptune's Moon Naiad
• Neptune's Moon Thalassa
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Discover the cosmos! ... 2012 July 24 . South Polar Vortex Discovered on Titan . Image Credit: Cassini Imaging Team , ISS , JPL , ESA , NASA . Explanation: What's happening over the south pole of Titan? A vortex of haze appears to be forming, although no one is sure why. ... Winter, however, is slowly descending on the south of Titan, so that the vortex , if it survives, will be plunged into darkness over the next few years. ... About APOD | ... A service of: ASD at NASA / GSFC . ...

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• APOD: 2012 April 11 - Geostationary Satellites Beyond the Alps
• APOD: 2009 September 23 - CoRoT Satellite Discovers Rocky Planet
• APOD: 2005 August 8 - Mars to Appear Normal this August

... South Polar Vortex Discovered on Titan . ... Credit Copyright: Cassini Imaging Team , ISS , JPL , ESA , NASA Explanation: What's happening over the south pole of Titan? ... The above natural-color image shows the light-colored feature. ... Winter, however, is slowly descending on the south of Titan, so that the vortex , if it survives, will be plunged into darkness over the next few years. ... Publications with keywords: Titan - clouds . Publications with words: Titan - clouds . ...

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• Unusual Hollows Discovered on Planet Mercury
• Ice Fountains Discovered on Saturns Enceladus
• Астронет > Ice Fountains Discovered on Saturns Enceladus

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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• Supernovae 2013cj in UGC 10685
• Supernovae 2010jl in UGC 5189A
• Supernova 2000ds in NGC 2768

Image credit: Michael Nolan, Arecibo Observatory. These radar images of near-Earth asteroid 2001 SN263 were obtained on 2008 Feb 12 and 13. ... Image from Feb 12 . ... First near-Earth triple asteroid discovered by Arecibo Observatory . ... was discovered this week by astronomers at the sensitive radar telescope at Cornell University?s Arecibo Observatory in Puerto Rico. ... For example, Arecibo has discovered more than half of the near-Earth binary asteroid systems discovered since 1999. ...

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• GRB030329
• Radar Images of asteroid 1998 ML14
• Asteroid 1998 ML14 1998 Aug 14-17

Astronotes Armagh Planetarium's Stellar Blog! ... Armagh Planetarium . ... Solar System . ... Planets . ... Space Flight . ... Neptune, which is not visible with the naked eye, was discovered by mathematical prediction in 1846 before being observed through a telescope. ... Tidal interactions between Neptune and Triton mean that in 100 million years these two bodies may come too close to one another causing Triton to be torn apart leaving Neptune with a ring system more spectacular than SaturnтАЩs. ...

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• Leonid meteors 2011 | Astronotes
• Kepler 36b and c: Too Close for Comfort | Astronotes
• Kepler-10b: world of lava oceans? | Astronotes

Recent Changes - Search : . ... Basic Editing . ... edit SideBar . ... Go to new wiki . History . ... LBASep2014 / . NB Ceduna appears to have variable gain throughout this experiment. ... Menu 1: 23=1 24=110 25=176 26=1 27=512 . Menu 4: 23=1 24=134 25=170 26=1 27=512 (Note that these parameters were set with the levels not perfect - they should be redone for next time) . ... Edit - History - Print - Recent Changes - Search . ...

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• VLBI Wiki | LBASep2014 / V527bCdLog
• VLBI Wiki | LBASep2014 / V252asCdLog
• VLBI Wiki | LBASep2014 / V521aCdLog

... The International Year of Astronomy (IYA2009) will be a global celebration of astronomy and its contributions to society and culture, highlighted by the 400th anniversary of the first use of an astronomical telescope by Galileo Galilei. The aim of the IYA is to stimulate worldwide interest, especially among young people, in astronomy and science under the central theme "The Universe, Yours to Discover." ... Discover the universe with a telescope similar to the one Galileo used 400 years ago. ...

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• ASP: Mercury Magazine
• ASP: Star Science in the Autumn Sky

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . On Friday 15th February the recently discovered Apollo-class near-Earth asteroid 2012 DA14 will make a close pass by the Earth. The asteroid will come within about 34,000 km (21,000 miles) of the centre of our planet at 7.26 p.m. That is, within the ring of geostationary communication satellites which orbit at some 35,800 km above the surface of the Earth. ... Last Revised: 2013 February 11th . ...

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• Historical Background
• HISTORICAL BACKGROUND
• Hot subdwarfs

The lost world: Pluto and Haron. Pluto . ... Mass . ... The period of rotation . ... Pluto is the ninth from the Sun big planet of the solar system. ... The careful processing of the snapshots with the images of the star sky parts, where the new planet was thought to be found was not successful at that time (later on when Pluto had been discovered the snapshots of 1991 were processed again and there were the four very weak and invisible earlier imeges of the planet seen). ...

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• smalltelae
• jupitere
• irasphotoe

Estimating the NEO Population and Impact Risk: Past, Present and Future . ... Since most of the risk resides in the largest impactors, finding that fraction of the largest bodies, and that none of them has a significant chance of impacting in the next century or so, "retires" more than 90 % of the impact risk, including most of the risk of a globally catastrophic impact event. ... In the mid-size range, from ~150 m to ~1 km, the main risk is from tsunami generated by an ocean impact. ...

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• Keywords_327
• Laboratory of minor bodies of Solar system

... SAO researchers have discovered that supercritical accretion disks eject hot gas with a velocity of a few thousand kilometers per second. The supercritical regime of accretion onto black holes is very important for astrophysics. In the first half-billion years just after our Universe was born, supermassive black holes (quasars) began to appear and grow in centers of young galaxies. ... Gas falling onto a black hole (accretion) is not a frequent phenomenon in our Galaxy. ...

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• New LBV Star Discovered in the Galaxy
• New LBV Discovered in DDO 68 Galaxy
• Galaxy sector, archive 2013

EMBARGOED UNTIL: 9:20 AM CST, January 6, 1999 CONTACT: John Biretta Space Telecsope Science Institute, Baltimore, MD (Phone: (410) 338-4917; Internet: biretta@stsci.edu) HUBBLE DETECTS FASTER-THAN-LIGHT MOTION IN GALAXY M87 Astronomers reported today discovering clouds which appear to move many times faster than the speed of light, shooting out from the region of a black hole at the center of the M87 galaxy. ... It's an illusion created by the finite speed of light and rapid motion," Biretta said. ...

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• STScI Preprint #1224
• Variable Evolved Stars and Young Stellar Objects Discovered in the Large
• What is the offset in the U2 direction that can be taken before a gap appears?

This image from ESO's Very Large Telescope (VLT) shows the newly discovered planet HD95086 b, next to its parent star. The observations were made using NACO, the adaptative optics instrument for the VLT in infrared light, and using a technique called differential imaging, which improves the contrast between the planet and its dazzling host star. ... The exoplanet appears at the lower left. The blue circle is the size of the orbit of Neptune in the Solar System. ...

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• http://www.astronomy.com/sitefiles/resources/image.aspx?item=%7B81E439CD-DF98-4115-B1A2-F8E08A9EE89C%7D
• http://www.astronomy.com/sitefiles/resources/image.aspx?item=%7B82225607-5DFB-4FD8-A49D-4F4032AEE1AF%7D
• http://www.astronomy.com/sitefiles/resources/image.aspx?item=%7B362C578D-D78E-49BA-B5C0-E8C37BEF3A19%7D

Jean Ballet, CEA/SAp 01 February 2005 Column rejection in the MOS The core of soft sources is removed by the standard emchain. Due to very large fluctuations in count rate from one column to the next at low energy. ... New columns with very bad (too low) energy were discovered in 1E 0102. ... 0831_0125911901, MOS 1, CCD 1, GD 153 (SW mode) Standpixeas alotsrs moved Bad ard l n n y ie The columns running through the source core are rejected by embadpixfind 1.20 in SAS 6.1. ...

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• http://xmm.vilspa.esa.es/sas/6.0.0/doc/lccorr/ChangeLog
• http://xmm.vilspa.esa.es/
• XMM RM in L-LocalTime

Next: The Evolutionary Status of Up: No Title Previous: Massive X-ray Binaries . After 25 years of pulsar studies, a radiopulsar has been discovered in a binary system with a massive optical companion (Johnston et al. ... As shown in the very first calculations of joint evolution of NS and normal stars in binaries (Kornilov and Lipunov, 1983b[ 86 ]) a considerable fraction (maybe, the majority) of NS in binary systems having an optical companion must be at the ejector љ (E) state. ... Systems . ...

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• Scientifically discovered God
• Physicists on the Money
• Endlessly Complicated World

... Data Reduction FAQ > The reduced science spectrum displayed in the Reflex window appears good but when I try to plot it, it is quite different. How can I get it? ... Observing with ESO Telescopes . ... ESO-MIDAS . ... Reflex . ... ESO Data . ... ESO HST Image Galleries . ... ESO Data Access Policy . ... ESO Science Newsletter . ... ESO Annual Reports . ... Seminars at ESO Santiago . ... Seminars at ESO Garching . ... ESO Telescope Bibliography . ... Last Update: 01.04.14 ESO . ...

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• The Unexpected Past of a Dwarf Galaxy | ESO
• Massive galaxies discovered in the early Universe
• Massive galaxies discovered in the early Universe | ESO