... M3: Inconstant Star Cluster . ... Star clusters appear constant because photographs of them are frozen in time. ... Venus by the Lake . ... And if you can find Venus tonight, you can also easily find the lovely Pleiades star cluster (aka M45) close by. ... Hurtling through a cosmic dust cloud a mere 400 light-years away, the lovely Pleiades or Seven Sisters star cluster is well-known in astronomical images for its striking blue reflection nebulae. At visible wavelengths.. ... Saturn from Below . ...

. View from Armagh looking towards the East at 5.00 a.m. on 2nd February 1997. As seen with the naked eye, the comet will appear as a faint, misty patch of light, but the head of the comet, known as the "coma", and its tail should be easily visible with binoculars. To get your bearings, note the three bright stars that make up the "summer triangle", namely Vega, Deneb and Altair, and the small constellation, Sagitta. Last Revised: 06/02/1997 . WWW contact: webmaster@star.arm.ac.uk . Go to HOME Page

... 1b. Pole Star . ... Two bright constellations occupy opposite sides of the pole star--the Big Dipper and Cassiopeia . ... The Big Dipper consists of 7 bright stars, forming a dipper, a small pot with a long handle. ... It shows the 7 stars of the Big Dipper and Polaris, the north star. ... Ursa Minor , the "Small Bear" or "Little Dipper" is a constellation somewhat resembling the Big Dipper, and Polaris is the last star in its tail. ... Questions from Users: About the stars of the Big Dipper . ...

... 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. ...

... Kalirai and Harvey Richer of the University of British Columbia led the study, which began as an investigation of a globular star cluster in the Milky Way galaxy known as NGC 6397. ... Within the population of stars and galaxies behind NGC 6397, the Hubble image revealed a large elliptical galaxy that contains several hundred globular clusters. ... In fact, a single giant star in NGC 6397 appears 10 million times brighter than one of the distant globular clusters. ...

... March 31, 1996 . Comet Hyakutake Finder Chart for April . Credit: HST Comet Hyakutake Observing Team and NASA . ... Explanation: During April Comet Hyakutake heads in toward the Sun after passing the Earth . ... Early in April, the Moon 's glow will diminish viewing of the comet's tail - except during the lunar eclipse on April 3rd ! As the comet recedes from the Earth it will appear dimmer even though it is getting intrinsically brighter as it nears the Sun. ... About APOD | ...

... Вход в Астротоп + Напомнить пароль + Блог + ЗАРЯ + Exit . ... Поиск сайтов в нашем каталоге (по части: адреса/названия/авторства): . ... Назад, на титульную страницу AstroTop-100 . ... Все замечания и предложения по поводу работы проекта AstroTop of Russia Вы можете оставить в гостевой книге . ... Вольф Александр , ему слать все замечания по идеологии и содержанию проекта. Программирование: Самодуров Владимир, Вольф Александр . ... Александр Вольф . ... AstroTop of Russia Гостевая книга . ...

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 . ...

Astronotes Armagh Planetarium's Stellar Blog! ... Stars . ... Telescopes and Observatories . ... The majestic star-forming region in the Lagoon Nebula. The pale ring to the right is an internal reflection in the telescope.€а (Image credit: ESO/ VPHAS+/ V. Kalari and J. Vink (Armagh Observatory) . ... The 18 component images were further processed twice. ... Venu and his colleagues use images like this to identify individual young forming stars in the Lagoon Nebula and determine their ages. ...

Find The Perfect Gift For Your Favorite Astronomy Nut . Articles | ... If you have an astronomy nerd, nut, or enthusiast on your gift-giving list, you are in luck when it comes to shopping. ... Astronomy is the wonderful science of examining and learning about our universe, and the instruments of observation are telescopes and binoculars. ... The Internet is your shopping mother lode for astronomy-related gifts. ... www.astronomy.net . ... dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

In autumn 1994, two groups of astronomers announced that they had discovered Cepheid variable stars in a distant cluster of galaxies. ... As the term suggests, variable stars change in brightness over time. ... Variable stars are an ideal way to get high-school students doing real science, with real data, from the real sky. ... a sky chart to find the stars . ... Students can use the nearby stars to estimate the magnitude of Delta. ... Locate the star Delta in Cepheus and estimate its brightness . ...

... Duchamp | ... Top | Duchamp is a solution to this problem of three-dimensional source finding. ... A list of the detections and their properties, as well as the input parameters that were used. [text file] . ... It can be downloaded in source format, in a gzipped tar archive. ... Changes from the previous version can be seen here (this file is included in the tar archive), while the archive files and documentation from the previous release versions are here , if you are really interested. ...

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... NASA's Hubble Space Telescope has provided a never-before-seen view of a warped disk flooded with a torrent of ultraviolet light from hot gas trapped around a suspected massive black hole. ... This composite image of the core of the galaxy was constructed by combining a visible light image taken with Hubble's Wide Field Planetary Camera 2 (WFPC2), with a separate image taken in ultraviolet light with the Faint Object Camera (FOC). ... The inset box shows Hubble Space Telescope's field of view. ...

... With autofs, you do not get (or even have the option of getting) browsable icons for the mount point of each automount map. ... The more major problem is that after going to one of those mount points by hand (command-shift-g), you can see a nice list of mountable directories (yay!), but when you click on them they don't mount; instead you get an error message. ... If the user has a hard drive they'll know about it, and look for it in a directory full of mounted volumes. ...

... DP = dirty picture Dust specks or dirt are evident on the finding chart. ... Identifications Within 2 Arcmin of Known Clusters of Galaxies The letter preceding the cluster catalog number: a = Abell Cluster z = Zwicky Cluster The notations following the catalog number: cc = at cluster center nc = not at cluster center mc = near cluster center ni = not identified with probable cluster member c: = cluster not obvious on finding chart ef = identification is EF (empty ...

The Experiment: To find the first galaxies . Understand basic properties of star formation/galaxies ? guess how a young galaxy, or protogalaxy would appear . ... New stars very blue: will appear redder at large distances (redshift). Dust protects gas from radiation. Dust is heated and is luminous at infrared wavelengths. ... Gas in close to a group of galaxies (cluster) may become very hot and emit X-rays. Previous slide . Next slide . Back to first slide . ...

A Canadian and American team of Astronomers have used the 305-m wide Arecibo radio dish, the world's largest and most sensitive radio telescope, to uncover a dozen new super-fast-spinning pulsars. The team directed their search for these rare and exotic stars by pointing the Arecibo radio telescope towards massive star clusters, called Globular Clusters, orbiting our Milky Way galaxy. ... One of the most exotic residents in the Globular cluster system are the millisecond pulsars. ...

... Star Atlas . ... VISTA finds 96 star clusters hidden behind dust . ... VISTA finds star clusters galore. ... Using data from the VISTA infrared survey telescope at the European Southern Observatory (ESO), an international team of astronomers has discovered 96 new open star clusters hidden by the dust in the Milky Way. ... Since antiquity, only 2,500 open clusters have been found in the Milky Way, but astronomers estimate there might be as many as 30,000 still hiding behind the dust and gas. ...

Find Similar Abstracts . ... Intergalactic gas in clusters of galaxies, the microwave background, and cosmology . ... In addition, it may be feasible to determine the peculiar velocity of clusters relative to the microwave background. ... Use: Authors Title Abstract Text Text Query with Keywords Return: Query Results Query Form Database: Astronomy Instrumentation Physics and Geophysics ABSTRACT QUERY USER FEEDBACK HELP ...