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1. APOD: 2010 October 10 - Moonquakes Surprisingly Common
... 2010 October 10 . Moonquakes Surprisingly Common . Credit: Neil Armstrong , Apollo 11 Crew , GRIN , NASA . Explanation: Why are there so many moonquakes? A recent reanalysis of seismometers left on the moon by the Apollo moon landings has revealed a surprising number of moonquakes occurring within 30 kilometers of the surface. ... The cause of the moonquakes remains unknown, with one hypothesis holding that landslides in craters cause the vibrations. ... About APOD | ...
[ Сохраненная копия ]  Ссылки http://www.sai.msu.su/apod/ap101010.html -- 5.7 Кб -- 12.02.2011
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2. APOD: May 5, 1998 - Aurora at Midnight
... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. May 5, 1998 . Aurora at Midnight . Credit Copyright: J. Curtis ( U. Alaska Fairbanks ) . Explanation: What's happening behind those trees? Aurora . This picture was taken at midnight near Fairbanks , Alaska , and captures familiar trees, common clouds, and a glowing sky markedly different than a sunset . ... About APOD > . ...
[ Сохраненная копия ]  Ссылки http://www.sai.msu.su/apod/ap980505.html -- 4.6 Кб -- 02.10.2012
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3. General Catalogue of Variable Stars: What's new.
... What's new . ... The new version of the General Catalogue of Variable Stars (GCVS4.2) revised taking into account the new data accumulated since the 4th GCVS edition for the constellations: Canis Minor, Capricornus The new version of the GCVS ! ... The new version of the General Catalogue of Variable Stars (GCVS4.2) revised taking into account the new data accumulated since the 4th GCVS edition for the constellations: Apus, Cancer, Canes Venatici and Canis Major The new version of the GCVS ! ...
[ Сохраненная копия ]  Ссылки http://www.sai.msu.su/gcvs/gcvs/new.htm -- 35.5 Кб -- 10.04.2016
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4. Supernova 1999bx in NGC 6749
This page is devoted to information on Supernova 1999bx in NGC 6749 . Basic information on this SN, including the last reported brightness, on this Supernova can be found on the main supernova page. Information on the original web pages for many of these images can be found on the Supernova links web page. ... It was originally reported in UGC 11391, but this galaxy also has the name NGC 6745, which is much more commonly used. ... Click on the name in the "observer" column to see the image. ...
[ Сохраненная копия ]  Ссылки http://www.sai.msu.su/mirrors/isn/snimages/sn1999/sn1999bx.html -- 5.5 Кб -- 22.12.2007
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5. The Origin of the Solar System
... 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. ...
[ Сохраненная копия ]  Ссылки http://www.sai.msu.su/tnp/origin.html -- 6.4 Кб -- 01.10.2012
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6. Absolute proper motions of open clusters
ABSOLUTE PROPER MOTIONS OF 331 OPEN CLUSTERS . ... The proper motions of stars in the fields of 331 open clusters were taken from Four-Million Star Catalog (4M-catalog) of positions and proper motions (Volchkov et al. ... The absolute proper motions for 21 young open clusters have been derived by comparison of precise relative proper motions of individual stars and their corresponding absolute proper motions. ... Sign of proper motions in RA . ... 0.0001 arcsec/yr . ... rms error in RA proper motion . ...
[ Сохраненная копия ]  Ссылки http://www.sai.msu.su/groups/cluster/cl/pm/ -- 9.0 Кб -- 25.07.2002
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7. Астротоп 100 России
... Астрономические данные в Сети - где искать и как пользоваться? Сайты с астрономической библиографией . ... Каталоги и базы данных в Сети. ... Говоря о каталогах, всегда вспоминают в первую очередь базу данных в Страсбурге http://cdsweb.u-strasbg.fr/Cats.html Является стандартом де-факто и де-юре - все таблицы и каталоги по указанию МАС со всего мира стекаются именно сюда. ... Есть система визуализации данных Aladin и объектно-поисковая система (вот к ней-то доступ и ограничен - в смысле платный.. ...
[ Сохраненная копия ]  Ссылки http://www.sai.msu.su/top100/guide/catalogs.shtml -- 31.2 Кб -- 11.09.2010
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8. http://www.sai.msu.su/groups/cluster/rastor/AL454.pdf
... 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. ...
[ Текст ]  Ссылки http://www.sai.msu.su/groups/cluster/rastor/AL454.pdf -- 712.0 Кб -- 16.08.2002
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Rambler's Top100 RFBR Яндекс цитирования