. Prague, August 16, 2006 . Present classification : Suggested: . FU, I, IA, IB, INA, INB, I, TT, TTc, TTw, HAeBe . INT, IT, IN(YY), IS, ISA, Remark: I is for irregulars with . ISB doubts about their being young, . TTc for classical and TTw, for weak-lined T Tauri stars, HAeBe for Herbig Ae/Be stars . GCAS, BE Be . RCB RCB . RS Move to rotating variables . SDOR SDor . UV, UVN UV . ERUPTIVE VARIABLES
. Prague, August 16, 2006 . Present classification : Suggested: . FU, I, IA, IB, INA, INB, I, TT, TTc, TTw, HAeBe . INT, IT, IN(YY), IS, ISA, Remark: I is for irregulars with . ISB doubts about their being young, . TTc for classical and TTw, for weak-lined T Tauri stars, HAeBe for Herbig Ae/Be stars . GCAS, BE Be . RCB RCB . RS Move to rotating variables . SDOR SDor . UV, UVN UV . ERUPTIVE VARIABLES
... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. August 30, 1998 . The Sun Erupts . Credit: Skylab , NASA . Explanation: The Sun is a seething ball of extremely hot gas. ... The Sun has survived for about 5 billion years, and will likely survive for another 5 billion. ... For example: Why is the Sun's corona so hot? What causes the Sun's unusual magnetic field? ... About APOD > . ...
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 . ...
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 ...
... 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. ...
... 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. ...
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) . ...
... Отмеченная наградами АстроТоп-а . ... В качестве первого такого интервью мы предлагаем вашему вниманию запись беседы с Александром Железняковым , автором сайта "Энциклопедия Космонавтика" и новостной ленты "Новости Космонавтики" . ... Все эти материалы - Ваши, или Вы имеете сеть корреспондентов, умело организовав сбор материала? ... Недостатков у моего сайта немало. ... Видно, разумеется, что подвижки все же есть - на Вашем сайте с недавнего времени стоит "Под эгидой Федерации космонавтики России.. ...