. Prague, August 16, 2006 . Present classification : Suggested: . X, XB, XF, XI, XJ, XND, AM (move to cataclysmics), X, X N, XNB (approximately corresponds to XNG, a B star orbiting a compact object), Xlm (low mass), Xhm (high mass), Xmq (microquasars). In this class, advice from experts is especially needed . X-RAY VARIABLES
. Prague, August 16, 2006 . Present classification : Suggested: . X, XB, XF, XI, XJ, XND, AM (move to cataclysmics), X, X N, XNB (approximately corresponds to XNG, a B star orbiting a compact object), Xlm (low mass), Xhm (high mass), Xmq (microquasars). In this class, advice from experts is especially needed . X-RAY VARIABLES
... 2000 August 18 . X-Rays From Antennae Galaxies . ... CXC , SAO , NASA . Explanation: A bevy of black holes and neutron stars shine as bright, point-like sources against bubbles of million degree gas in this false-color x-ray image from the orbiting Chandra Observatory . ... The exploding stars litter the scene with bubbles of shocked hot gas and collapsed stellar cores . ... Tomorrow's picture: X-ray Sky . ... About APOD | ... NASA Technical Rep.: ... A service of: LHEA at NASA / GSFC . ...
THE 75th NAME-LIST OF VARIABLE STARS. ... The 75th Name-List consists of two tables. ... the literature, taken from positional catalogues, including USNO A1.0/A2.0 and GSC, or determined by the authors); the range of variability (sometimes the column Min gives, in parentheses, the amplitude of light variation; the symbol ( means that the star , in minimum light, becomes fainter, than the magnitude indicated); and the system of magnitudes used ( P are photographic ...
Supernova 2000de in NGC 4384 . This page is devoted to information on Supernova 2000de in NGC 4384 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 Supernova links web page. Marco Migliardi of CROSS discovered this one. He first sent it out as a "possible" to the ISN group on August 12.8. ... CROSS 2000de page . ... CROSS image . ...
... 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. ...
. 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 .
... 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. ...
... Сайты о планете Марс . ... Так, "марсианские" сайты занимают почти половину всех планетных линков на Yahoo - http://dir.yahoo.com/Science/Astronomy/Solar_System/Planets/Mars/ Существует веб-ринг сайтов, посвященный Марсу - http://www.iag.net/~crs/mars/ring.htm ; есть сайты не только с подборками линков о Марсе, но и чатами на марсианские темы - http://www.iag.net/~crs/mars/ , кое-где вы сможете поучаствовать и в обсуждениях проектов колонизации и освоения Марса - http://library.thinkquest.org/19455/...
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) . ...