... 2010 November 29 . Dark Belt Reappearing on Jupiter . Credit: NASA's JPL , U. Oxford , UC Berkeley , Gemini Obs. ... Explanation: Why are planet-circling clouds disappearing and reappearing on Jupiter? ... Earlier this year, unexpectedly, Jupiter's dark Southern Equatorial Belt (SEB) disappeared. ... Detailed professional observations revealed that high-flying light-colored ammonia -based clouds formed over the planet-circling dark belt. ... About APOD | ... A service of: ASD at NASA / GSFC . ...

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• APOD: 2010 January 3 - A Force from Empty Space: The Casimir Effect
• APOD: 2002 September 17 - A Force from Empty Space: The Casimir Effect
• APOD: 2006 December 17 - A Force from Empty Space: The Casimir Effect

... Hoags Object: A Strange Ring Galaxy . ... Credit: R. Lucas ( STScI / AURA ), Hubble Heritage Team , NASA Explanation: Is this one galaxy or two? ... How Hoag's Object formed remains unknown, although similar objects have now been identified and collectively labeled as a form of ring galaxy . ... Hoag's Object spans about 100,000 light years and lies about 600 million light years away toward the constellation of Serpens . ... Ring Galaxy AM 0644 741 from Hubble . ... Polar Ring Galaxy NGC 4650A ...

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• Journal "Peremennye Zvezdy"
• Dark Belt Reappearing on Jupiter
• A Force from Empty Space: The Casimir Effect

... 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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... Professor Mark Bailey completed work with the former PDRA Vacheslav Emel'yanenko on the capture of Halley-type comets from the long-period cometary flux. He also completed a paper with Ph.D. student Scott Manley on collision probabilities between small solar system bodies, and together with PDRA David Asher and visiting research fellow Vacheslav Emel'yanenko provided the explanation for the unexpected outburst of Leonid fireballs on the morning of 1998 November 17. ...

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• Armagh Observatory
• Hot subdwarfs
• Serendipitous Discovery of a Double Helium-rich Subdwarf

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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• Kepler and His Laws
• History of Space Exploration
• Tethys

HUBBLE SPACE TELESCOPE DAILY REPORT #2894 PERIOD COVERED: 0000Z (UTC) 06/14/01 - 0000Z (UTC) 06/15/01 Daily Status Report as of 166/0000Z 1.0 OBSERVATIONS SCHEDULED AND ACCOMPLISHED: 1.1 Completed Two Sets of WF/PC-2 8828 (Cycle 9 Supplemental Darks pt3/3) The WF/PC-2 was used to obtain three dark frames every day to provide data for monitoring and characterizing the evolution of hot pixels. ... 1.8 Completed WF/PC-2 8597 (The Fueling of Active Nuclei: Why are Active Galaxies Active?) ...

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• Andy Fruchter's Homepage
• Gregory F Snyder

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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• Was the 21 September Fireball a Second Moon? | Astronotes
• Kepler-10c: the First Mega-Earth | Astronotes
• The Truth about Life on Mars (part 3) | Astronotes

... There are several explanations for these X--ray quiet PMS stars. To examine the explanations, it is proper to divide the PMS stars into three groups: those bluer than R - I = 0.7, those redder than the X--ray sources (R - I > 1.25) and those with colors similar to the X--ray sources. ... A total of 26 of the non--X--ray detected PMS candidates had spectra taken. ... Between V=14 and V=16, I find 25 stars which are X--ray sources and estimate 19 non--X--ray PMS stars. ...

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• The AstroStat Slog incompleteness
• Completeness
• The AstroStat Slog Blog Archive [MADS] HMM

... 2000 May 7 . A Green Flash from the Sun . ... Explanation: Many think it is just a myth. ... It's a green flash from the Sun . ... The effect is typically visible only from locations with a low, distant horizon, and lasts just a few seconds. A green flash is also visible for a rising Sun , but takes better timing to spot. ... The Sun itself does not turn partly green, the effect is caused by layers of the Earth's atmosphere acting like a prism . ... About APOD | ...

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• APOD: November 5, 1997 - The Milky Way's Gamma-Ray Halo
• APOD: February 7, 1998 - COBE Hotspots: The Oldest Structures Known
• APOD: 2000 September 6 - Emerging Planetary Nebula CRL 618

... Главная . ... Новости . ... Проекты . Любителям астрономии . Проект ISON . ... Подробнее . ... Категория: Новости проекта ISON . ... Метки: Космический мусор ,љ Астероиды ,љ Гамма-всплески ,љ Любителям астрономии ,љ Кометы љ . ... Метки: Космический мусор ,љ Астероиды ,љ Любителям астрономии љ . ... Новости обсерваторий проекта] - Обсерватория Кубанского государственного университета от Иванов А - 09.04.2016 11:08:49 . ... 1999-2013 Copyright "Астрономия и Телескопостроение" . ...

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This page contains the table of contents and select excerpts only and is not a complete reproduction of this issue. Complete content for online Mercury is available to ASP members and institutional subscribers . ... As Indiana University astronomer John Salzer well knows, not all of them are easy to classify, and a few even appear to be relics from a bygone age. ... But at the same time, Johannes Kepler made a fundamental contribution to astronomy. ... A Messenger to Mercury , Paul Deans . ...

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• ASP: Star Science in the Autumn Sky
• ASP: Indiana Jones and the Astronomers of Yore
• ASP: Book Review

... Solar Wind . ... During a total eclipse of the Sun, when for a few minutes the Moon completely covers the Sun's face, a glow appears around the darkened Sun--the solar corona, the Sun's outermost atmosphere. ... Such high levels of ionization require the atoms to be buffeted around by extremely high temperatures, around 1,000,000 C (1,800,000 F). ... 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...