... 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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• Phil Plait's Bad Astronomy: Bad TV
• Phil Plait's Bad Astronomy: Misconceptions

... Inside the Eagle Nebula . ... Comet Lulin Tails . ... On February 2nd, a first quarter Moon shone in planet Earth's early evening sky. ... Some 3 million light-years distant in nearby spiral galaxy M33, giant stellar nursery NGC 604 is about 1,300 light-years across, or nearly 100 times the size of the Orion Nebula. ... Comet Lulin Approaches . ... Colorful NGC 1579 resembles the better known Trifid Nebula, but lies much farther north in planet Earth's sky, in the heroic constellation Perseus. ...

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... Opening times 7 pm - 9 pm Digital Theatre Show 7.30 pm (Suitable for family groups) Booking is Essential Tel: 028 3752 3689 Armagh Planetarium is open from Mon 29th Oct Sat 3rd Nov 2007 Daily opening hours: 11.30am-5.00pm For further information and a list of show times visit www.armaghplanet.com Booking is Essential Tel: 028 3752 3689 Prices Adults 6.00 per show Children (under 16) / Senior Citizens (65 yrs +) 5.00 per Last Revised: 2007 October 29th . ...

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• Armagh Observatory
• THE PERSEID METEOR SHOWER

Astronotes Armagh Planetarium's Stellar Blog! ... Space Flight . ... Earth Satellites . ... Leonid meteors seen from 13 km altitude aboard an aircraft during the 1999 Leonids Multi-Instrument Aircraft Campaign (Leonid-MAC). Comet Tempel-Tuttle provides the cometary debris for the Leonid meteor shower. ... Every 17-19 November Earth crosses Tempel-TuttleтАЩs orbit and the Leonids become visible. With clear, dark skies observers may see 10 to 15 Leonid meteors every hour on those mornings. ...

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• Water on Mars: Evidence from NASA | Astronotes
• comets | Astronotes - Part 2
• Comets And Asteroids | Astronotes - Part 2

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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• A Brief History of Magnetospheric Physics Before the Spaceflight Era
• Comet Introduction

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2015 June 2 . Polaris and Comet Lovejoy . ... Explanation: One of these two bright sky objects is moving. On the right is the famous star Polaris. Although only the 45th brightest star in the sky, Polaris is famous for appearing stationary. ... About APOD | ... NASA Official: Phillip Newman Specific rights apply . ...

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• APOD: 2013 October 28 - The Great Comet of 1680 Over Rotterdam
• APOD: 2003 March 6 - Comet NEAT in Southern Skies
• APOD: 2000 December 27 - The Dust and Ion Tails of Comet Hale Bopp

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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• Thermodynamics

... Gift Center . ... Why do aurorae appear strongest within rings centered on Earth's poles instead of filled-in circles? ... RELATED TOPICS: AURORAE . The visible aurorae result from electrons that move along magnetic field lines from space into the upper atmosphere. ... Just make sure you're registered with the website. Get instant access to subscriber content on Astronomy.com! ... If you are already registered on Astronomy.com, please log in below. ...

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• Can you explain Mercury's retrograde motion? Do other planets appear to do this
• Why do some stars appear to flash a variety of different colors when you look
• Why do sunspots appear in groups? | Astronomy.com

... The awsome spectacle of a brilliant comet, with its long ghostly tail streaming behind it, is a rare event. ... Only one other comet, Comet Halley, was seen so far from the Sun, giving scientists an opportunity to watch it as it slowly warmed up and sprouted a tail. ... Comets are the Rip Van Winkles of the solar system -- mini-worlds that have changed little during their 4.5-billion-year nap far from the Sun. ... Observing Comets . ... Once, comets inhabited the entire solar system. ...

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• ASP: The Comet About to Smash into Jupiter
• ASP: Star Science in the Autumn Sky
• ASP: Sharing the Universe

Comets are small, fragile, irregularly shaped bodies composed of a mixture of non-volatile grains and frozen gases. ... Most become visible, even in telescopes, only when they get near enough to the Sun for the Sun's radiation to start subliming the volatile gases, which in turn blow away small bits of the solid material. ... Nearly 100 known comets have periods (the time it takes them to make one complete trip around the Sun) five to seven Earth years in length. ...

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• The Motion of Comets
• Appendix C - The Probability of Collisions with Earth
• Comet Introduction

. Album : Фотоальбом Сергея Аюкова :: Travels to distant places and countries :: 1997/08 Japan (Kyoto, Nara) :: 17/08 Kyoto streets. Maruyama park . Up . << Prev . Dreaming about things on display. After checking, they appeared to be not that tasty compared to how they look. Next >> . Created with the tool album generator from David's MarginalHacks on Wed Jun 5 20:38:34 2013 .

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• crydee.sai.msu.(su,ru) archive: Help

Check out some poking around I've been doing on comet and asteroid dynamics from various databases. Comets are bad for our health! Well, at least over the long term-- look at what just *one* fragmet of Shoemaker-Levy 9 (the comet which impacted Jupiter in July of 1994) would have done had it hit Michigan instead of Jupiter! ... Charles Morris' JPL Comet Page . Mike A'Hearn's Home Page . Casey Lisse's Home Page . Small Bodies Node ...

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• Example Preprint entry
• What is the offset in the U2 direction that can be taken before a gap appears?
• Comets and Conserved Physical Quantities

... David P. Stern Laboratory for Extraterrestrial Physics NASA . ... Alfv?n's Theory and Electric Fields . ... The debate between proponents of a static corona, Parker's solar wind theory, and an alternative "solar breeze" theory of Chamberlai n [1960, 1961; Dessler 1967] was only settled by observations from space. ... Rapidly spreading plasma clouds produced by solar flares, like those envisioned by Chapman and Ferraro, are sometimes superposed on the solar wind flow. ...

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• FAQ: "The Great Magnet, the Earth"
• Added Note on "Profile" Orbit
• The Exploration of the Earth's Magnetosphere"

... See Environment File. ... An SM expression is something that can appear on the right hand side of a SET command. ... A filecap file is a database used to describe the byte-by-byte format of binary files, to allow SM to read them (using the IMAGE command). ... The word list is used in a few places in the manual in the specific sense defined by the YACC grammar in `control.y' . ... Their peculiarities are described by a termcap file, allowing SM's command editor to run on (almost) any terminal. ...

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• SM - Overloading Keywords
• VLBI Wiki | LBASep2014 / V490cCdLog
• VLBI Wiki | PmWiki / Internationalizations

Check out the new images (Jan 18-25) and (Jan 26-Feb 05) of the comet by Rob McNaught. ... Every few years a comet becomes bright enough to be easily seen with the naked eye but only every decade or so are these comparable with comets like Halley. ... Before Jan 13, the comet is not visible in the Australian sky after sunset. ... SOHO images . ... On Jan 12 at approximately 09:00 UT (8pm NSW time), comet C/2006 P1 McNaught appears at the 11 o'clock position in the images. ... STEREO images . ...

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• CHIAKI's Hobby
• Pink Black Holes: Frequently Asked Questions
• VV29 = Arp 188 = The Chainsaw Galaxy

... Yes, Exploding Comet 17P/Holmes is one of the strangest things ever seen by astronomers - professional and amateurs alike. ... We also had some club members who received some Astronomical League awards...and we'd like to congratulate them! ... It is again a potluck, and is being held at the Masonic Temple in Galion ( 1252 State Route 598, Galion , OH 44833) Here's a map: Map of 1252 State Route 598 Galion, OH 44833-9367, US And, along with the party come RAS elections for 2008! ... Comet 17P/Holmes ...

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• RAS Glossary A to C
• The M111 - "On Line"

This is a copy of a Press Release from E.S.O. Eight years after the passage of Comet Halley in early 1986, astronomers at the European Southern Observatory have succeeded in obtaining an image of this famous object at a distance of no less than 2,820 million km from the Sun. ... The image shows the 6 x 15 km avocado-shaped nucleus as an extremely faint point of light without any surrounding dust cloud. ... This observation was made with the ESO 3.58 metre New Technology Telescope (NTT). ...

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• Circinus Galaxy before and after SN 1996cr appeared | ESO
• ESO - The reduced science spectrum displayed in the Reflex window appears good
• Circinus Galaxy before and after SN 1996cr appeared | ESO Australia

The Wideband Arecibo Pulsar Processor - File Format Page . WAPP files have three sections that appear sequentially in this order: an ASCII header description, the binary header, and finally the actual binary data. ... The WAPP realtime observation engine does not produce files larger that 2 Gbytes. At one time this represented a fundamental limit to Linux files. ... Each file will have it's own header, even when the files are simply continuations of a single observation. ... long int . ...

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• hp1 synth loses lowest digits
• The Pleiades
• Jupiter's satellites National Astronomy and Ionosphere Center (Arecibo

The basic problems of the Laboratory are connected with researches of dynamics of minor planets and comets. ... THE ORBIT IMPROVEMENT of minor planets from optical and radar observations, . the utilization of minor planet observations for THE DETERMINATION OF ORIENTATION OF STAR CATALOGUES and DETERMINATION OF MASSES OF MINOR PLANETS BY DYNAMICAL METHOD, . THE ESTIMATION OF COLLISION PROBABILITY of minor planets with other bodies and with each other, . ...

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• Keywords_312
• (Untitled)

The multiscale analysis of heterogeneous structures is actually an important and effective tool of mathematical modeling in physics, technique and biology. ... The special year will extend the existing cooperation between French and Russian researchers in the multiscale analysis and in mathematical modeling in hemodynamics, taking into consideration the mass transport, coagulation, fluid-structure interaction and other aspects. ...

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