... 2001 September 6 . Moon AND Stars . ... Explanation: Here's something you don't see too often ... a detailed picture of the full Moon surrounded by a rich field of background stars. It's true that bright moonlight scattered by the atmosphere tends to mask faint stars, but pictures of the sunlit portion of the Moon made with earthbound telescopes or even with cameras on the lunar surface often fail to show any background stars at all . ... Because the exposure times are too short. ...
... 2000 December 20 . Sgr A*: Fast Stars Near the Galactic Center . ... Explanation: Why are these stars moving so fast? Shown above is a time-lapse movie in infrared light detailing how stars in the central light-year of our Galaxy have moved over the past eight years. ... If these fast stars are held to the Galactic Center by gravity, then the central object exerting this gravity must be both compact and massive. ... About APOD | ...
... Since GCVS IV, there was no new GCVS edition. ... Main reasons for the automatic-survey new variables remaining outside the GCVS for a long time: different level of detail of the classification systems, no perfect software for automatic classification available; individual approach to each star that was always used in the GCVS cannot be applied any longer, but the experience of automatically- updated catalogs evidences for the number of errors ...
This page is devoted to information on Supernova 1999gn in NGC 4303 (= M61 ) Basic information on this SN, including the last reported brightness, on this Supernova can be found on the main supernova page. Information on the original web pages for many of these images can be found on the Supernova links web page. ... SEDS has a Supernova 1999gn page . ... Seiichi Yoshida has a 1999gn page . ... Kopernik 's M61 and supernova 1999gn page . ... vsnet-alert 3835 ] SN 1999gn in NGC 4303 = Messier 61 . ...
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Moscow Astronomical Plate Archives: . Contents, Digitization, Current and Possible Applications . ... We describe the astronomical plate archives in Moscow and Zvenigorod and the existing digitization projects. ... 2 The Plate Archive of the Sternberg Institute . The contents of the most important Moscow astronomical plate archive, that of the Sternberg Astronomical Institute, was briefly presented in Shugarov et al. [1] in 1999. ... THE MOSCOW PLATE COLLECTION (STERNBERG INSTITUTE) . ...
... Отмеченная наградами АстроТоп-а . ... 1) К участию в конкурсе допускаются все российские сайты на тему астрономии и космонавтики, и все русскоязычные сайты за пределами России. ... II) Сайт года . ... Победитель: Астронет - http://www.astronet.ru/ : подано голосов экспертов - 109 (всего - 129) . ... 3-е место разделили: Астрономия и Телескопостроение - http://www.astronomer.ru/ и Лента новостей космонавтики от Железнякова - http://www.cosmoworld.ru/spaceencyclopedia/hotnews/ : подано по 37 голосов; ...
Shades of Deep Purple (USA: Tetragrammaton 1968 ; Europe: EMI Parlaphone 1968 ; Japan: Polydor 1968) (CD) . Deep Purple's debut album, recorded very hastily. ... Tracks: . ... Wring That Neck (Blackmore/Lord/Simper/Paice) . ... All tracks written by Blackmore/Gillan/Glover/Lord/Paice . ... Painted Horse (Blackmore/Gillan/Glover/Lord/Paice) . ... Child in Time (Live, 690924) (Blackmore/Gillan/Glover/Lord/Paice) . ... Bonus tracks on Japanese CD: Lazy (edited) (Blackmore/Gillan/Glover/Lord/Paice) . ...
... Here is a brief outline of the current theory of the events in the early history of the solar system: . A cloud of interstellar gas and/or dust (the "solar nebula") is disturbed and collapses under its own gravity. ... The gas cools off enough for the metal, rock and (far enough from the forming star) ice to condense out into tiny particles. (i.e. some of the gas turns back into dust). ... Once the larger of these particles get big enough to have a nontrivial gravity, their growth accelerates. ...
... The distance scales of the objects are matched both by comparing the first derivatives of the angular velocity determined separately from radial velocities and proper motions and by the statistical-parallax method. ... Good agreement between the inferred 0 and our calculations based on space velocities suggests that the Lindblad relation holds throughout the entire sample volume. ... Brandt and Blitz (1993) published the distances and radial velocities for a total of 206 H II-regions. ... Astron. ...