... 2006 December 8 . NGC 2174: Emission Nebula in Orion . ... Explanation: A lesser known sight in the nebula-rich constellation Orion, NGC 2174 can be found with binoculars near the head of the celestial hunter . ... Covering an area larger than the full Moon on the sky, this stunning narrow band image adopts a typical color mapping of the atomic emission from NGC 2174. ... Placing your cursor on the image will reveal an alternative image of the nebula made through broad band filters . ...

... Each day we feature a different image or photograph of our fascinating universe, along with a brief explanation written by a professional astronomer. December 27, 1995 . Nova Cygni 1992 . Credit: NASA , ESA , HST , F. Paresce, R. Jedrzejewski ( STScI ) . ... Dubbed Nova Cygni 1992, this event most probably occurred in an accretion disk binary system . ... Nova Cygni 1992 was the brightest nova in recent history - at its brightest it could be seen without a telescope. ... About APOD | ...

... Date : the picture was taken on December 14th 1998 . Location : Courroux / Ju (Switzerland) . Equipement : telescope Celestron Ultima 8 operating at F/D=6.3 camera CCD ST7 operating at high resolution autoguided mode . Exposures : 6 exposures of 10 minutes each . Pictures treatment : logarithmic . Software : Prism98 version 3.0 for acquisition and treatment of the pictures . ... 2822 Courroux . ... David Bishop Last modified: Wed Dec 16 13:55:05 EST 1998 ...

... At present, he is a Leading researcher at the Department of Non-Stationary Stars and Stellar Spectroscopy, heading the group of the General Catalogue of Variable Stars, and a Leading researcher at the Department of Variable Stars and Galactic Astronomy of the Sternberg Astronomical Institute, heading the group of Variable Stars. ... P.P. Parenago, B.V. Kukarkin, P.N. Kholopov leaded the team of variable star catalogue compilers at Astronomical Council/INASAN and at Sternberg Institute through years....

... 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; ...

... 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. ...

... 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. ...