... 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. ...

... 2001 June 4 . The T Tauri Star Forming System . ... A prototype laboratory for the formation of low mass stars like our Sun is the T Tauri system , one of the brighter star systems toward the constellation of Taurus . In young systems , gravity causes a gas cloud to condense. The situation then usually becomes quite complex, as some of the infalling gas is heated so much by collisions that it is immediately expelled as an outgoing wind . ... About APOD | ...

... June 25, 1996 . A Star Forming Region in the LMC . ... Explanation: Stars sometimes form in colorful ways. Pictured above is a small region in the nearby LMC galaxy where stars are forming. ... It may develop a strong wind which pushes away nearby gas ; it may be so hot and intense that emitted light boils away nearby dust and gas , and it may be so massive that it soon goes supernova and catapults its elements back to the interstellar medium . ... About APOD | ... Specific rights apply. ...

... General Catalog of Variable Stars (GCVS database, Version 2015Sep) . ... Query forms . ... Enter The Type of the Variability : ACV ACV+ DSCT : ACV+ DSCTC ACV: ACVO ACVO: ACYG ACYG: AM AM/XRM+E AM: BCEP BCEP (B) BCEP +E BCEP +E: BCEP +EA/D BCEP + ELL : BCEP : BCEPS BE BE+ BCEP : BE: BLBOO BLLAC BY BY+UV BY+UV: BY: BY:+E: BY:+UV: CEP CEP(B) CEP: CST CST: CW CW: CWA CWA: CWB CWB: DCEP DCEP(B) DCEP: DCEPS DCEPS(B) DCEPS: DSCT DSCT (B) DSCT (B:) DSCT : DSCTC DSCTC (B) DSCTC +E DSCTC +E...

. Search the Web Usenet and Display the Results in Standard Form in Compact Form in Detailed Form as a Count only . Use only Advanced Query Syntax with AND , OR , NOT and NEAR . Simple Query Syntax will not work! . Results Ranking Criteria: documents containing these words will be listed first. If left blank, the matching documents will not be sorted. Start date: End date: e.g. 21/Mar/96 .

General Catalog of Variable Stars (GCVS database, Version 2013Jun) . Samus N.N., Durlevich O.V., Kazarovets E V., Kireeva N.N., Pastukhova E.N., Zharova A.V., et al. ... General Catalogue of Variable Stars (Samus+ 2007-2012), VizieR On-line Data Catalog: B/gcvs . ... Query forms by files . The values in the input file must be separeted by comas or arranged in columns. ... Enter the file with the GCVS names: . ... Enter the file with the coordinates J2000.0: . ...

Supernova 2002ao in UGC 9299 . This page is devoted to information on Supernova 2002ao in UGC 9299 Basic information on this SN, including the last reported brightness, on this Supernova can be found on the main page . Information on the original web pages for many of these images can be found on the updates and links web pages. ... AAVSO has a 2002ao page . ... VSNET 2002ao summary page . ... vsnet-campaign-sn 326] SN 2002ao in UGC 9299 . ... vsnet-campaign-sn 339] Re: SN 2002ao in UGC 9299 . ...

... 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. ...

... 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. ...