... December 19, 1999 . Accretion Disk Binary System . ... Explanation: Our Sun is unusual in that it is alone - most stars occur in multiple or binary systems . In a binary system, the higher mass star will evolve faster and will eventually become a compact object - either a white dwarf star, a neutron star , or black hole . ... Here gas from a blue giant star is shown being stripped away into an accretion disk around its compact binary companion. ... About APOD > . ...

... 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 | ...

... 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. ...

... Sternberg Astronomical Institute , Moscow University . ... Present edition unites two parts of Catalogue of interacting galaxies by B.A.Vorontsov-Velyaminov: the first part (Part 1) containing 355 systems was published in 1959 [1] and the second one (Part 2) with 497 objects - in 1976 [2].Thus two published parts of Catalogue include 852 interacting systems. ... All new of them (1162 by number) were taken from the comments to the galaxies in Morphological catalogue by Vorontsov-Velyaminov et al.[ ...

New GCVS Version (GCVS5) FileName Explanations ----------------------------------------------------------------- ReadMe This file GCVS5 The ... ------------------------------------------------------ 1- 2 I2 --- Constell [1/88]Constellation numeric code 3- 6 I4 --- Number Star number within the constellation 7 A1 --- Component *Component identification 9- 18 A10 --- GCVS * Variable ... Field is non-blank if magMin is a magnitude or amplitude given in a system other than that indicated by magCode. ...

. Actually, my system had chosen UGC 4661 as a host candidate, but sometimes you just get lucky when there's another galaxy in the field. Mike Schwartz , Director . Tenagra Observatories, Ltd. Cottage Grove, OR 97424 . VSNet data on this SN: . [ vsnet-chart 134 ] Chart of SN1999X . [ vsnet-chat 1616 ] Host galaxy of SN1999X . Back to Bright Supernovae . Back to Supernova 1999X in CGCG 180-22 . David Bishop Last modified: Fri Jul 2 12:14:21 EDT 1999

... Астрономические данные в Сети - где искать и как пользоваться? Сайты с астрономической библиографией . ... Солнечные сайты . ... Астероидные сайты . ... http://www.uic.rsu.ru/astro/ А наиболее полный список на сайты по теме " что почитать по астрономии " (по-русски) можно найти в соответствующем разделе рейтингового каталога АстроТоп-100 . ... Прекрасная система поиска позволит Вам найти обзорные статьи практически по любому разделу современной науки - от физики и астрономии до химии и биологии. ...

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