... 2012 March 23 . Messier 9 Close-up . Credit: ESA/Hubble , NASA . Explanation: Renown 18th century astronomer Charles Messier described this 9th entry in his famous astronomical catalog as "Nebula, without star, in the right leg of Ophiuchus .. But Messier 9 (M9) does have stars, known to modern astronomers as a globular cluster of over 300,000 stars within a diameter of about 90 light-years. ... About APOD | ... NASA Official: Phillip Newman Specific rights apply . ...

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. November 19, 1999 . Mercury And The Sun . ... TRACE Project . Explanation: Just days before the peak of the Leonid meteor shower , skywatchers were offered another astronomical treat as planet Mercury crossed the face of the Sun on November 15. Viewed from planet Earth, a transit of Mercury is not all that rare. ... About APOD > . ...

European Astronomical Society(EAS): NEWS Dear Colleagues, Please find enclosed some information of interest. ... We would also like to remind you that the time is appropriate to renew your membership for 2006 (see our Web page for procedures). ... And do'nt forget that, in between messages, the latest news can always be found on our Web page: http://www.iap.fr/eas/index.html With kind regards, Michel Dennefeld ************************************************************ Content 1. ...

Supernova 2001ed in NGC 706 . This page is devoted to information on Supernova 2001ed in NGC 706 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. This one was discovered by the CROSS team in Italy (M. Migliardi in this case). ... 2001/08/29.130 . ... CROSS image . ... vsnet-alert 6547 ] SN 2001ed in NGC 706 . ...

Moscow Astronomical Plate Archives: . Contents, Digitization, Current and Possible Applications . ... We describe the astronomical plate archives in Moscow and Zvenigorod and the existing digitization projects. ... 2 The Plate Archive of the Sternberg Institute . The contents of the most important Moscow astronomical plate archive, that of the Sternberg Astronomical Institute, was briefly presented in Shugarov et al. [1] in 1999. ... THE MOSCOW PLATE COLLECTION (STERNBERG INSTITUTE) . ...

... 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. ...

... 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; ...

... 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. ...