... 2006 October 15 . An Orion Deep Field . ... Explanation: Adrift 1,500 light-years away in one of the night sky's most recognizable constellations , the glowing Orion Nebula and the dark Horsehead Nebula are contrasting cosmic vistas. ... The magnificent emission region, the Orion Nebula (aka M42), lies at the upper right of the picture. ... Fainter tendrils of glowing hydrogen gas are easily traced throughout the region in this Orion deep field . ... About APOD | ...

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2000 February 28 . The Sombrero Galaxy from VLT . ... FORS1 , VLT ANTU , ESO . ... Reasons include the Sombrero 's unusually large and extended central bulge of stars, and dark prominent dust lanes that appear in a disk that we see nearly edge-on. Billions of old stars cause the diffuse glow of the extended central bulge. ... About APOD | ...

Supernova 2004dj in NGC 2403 . This page is devoted to information on Supernova 2004dj in NGC 2403 . ... Thus, if you have any images of NGC 2403 taken in late July of 2004, they might be worth a second look. ... Icon generated from Bright supernova observing group's 2004dj image . ... JM Llapasset image . ... vsnet-campaign-sn 929] SN 2004dj (mag 11!) . vsnet-campaign-sn 930] SN 2004dj in NGC 2403 - visual magn. estimate . vsnet-campaign-sn 931] very bright SN 2004dj in NGC 2403 . ...

Computer-readable version of General Catalogue of Variable Stars, Vol.V. Extragalactic Variable Stars. ... It contains the first Catalogue of variable stars in external galaxies as well as a Catalogue of extragalactic supernovae. ... Note that NGC 1466 is a globular cluster (not a galaxy) between the LMC and the SMC; we presented it separately, because it is not clear to which galaxy to attribute its variable stars. Note on VarNo: variable star No within the galaxy. ...

... E.V. Kazarovets, N.N . Samus , O.V. Durlevich, S.V. Antipin, M.S. Frolov, N.N . Kireeva, E.N. Pastukhova Institute of Astronomy of Russian Academy of Sciences and Sternberg State Astronomical Institute of ... the Moscow State University ================================================================================ The 74th Special Name-list of Variable Stars , A.V. Kazarovets, N.N . Samus , O.V. Durlevich, S.V. Antipin, M.S.,Frolov, ... 3323 Samus, N.N., IBVS, 1997, No. ...

... 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; ...

... 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. ...