Астроплощадка: 53 20 56,505 N 83 46 07,735 E, H абс. = 209 м. + Информационные каналы . ... Анк а дня . ... 02-04-2006 20:43 BBC . Российские военные готовы снять ограничения на определение координат географических объектов к лету 2006 года.. Все ключевые слова . Картинка дня . ... Copyright 2002-2014 . ...

... The event, a Type II supernova explosion, would have briefly dominated the night sky on Earth. ... Popularly known as the Veil Nebula, NGC 6960, NGC 6992, and NGC 6995 together constitute the corpse of a single supergiant star that perished in that supernova explosion. ... Such stars age about 1,000 times faster than does our Sun. ... Each nuclear-fusion stage releases energy and helps the star fight the ever-present pull of gravity. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

Земля . Обилие жидкой воды на поверхности и кислорода в атмосфере - вот, пожалуй, основные отличия Земли от всех известных на сегодняшний день небесных тел. Если земная атмосфера представляется из космоса тонкой и прозрачной, и если бы не облака, она выглядела бы совсем жалко, то занимающие около 70% поверхности океаны выглядят впечатляюще. Средняя глубина этой полноправной оболочки - гидросферы - примерно 4 км, и она представляет собой не просто заполненные водой впадины. ...

... ST-ECF . ABOUT ST-ECF . ... After an initial agreement between NASA and ESA in 1977 and following Hubble's more than twenty years in space and 110,000 orbits of the Earth, the aim of this conference is to celebrate the huge contributions made by the Hubble observatory to our knowledge and understanding of the Universe. ... David Southwood . ... Robert O'Connell . ... Robert O'Dell . ... Questions and information: HST3@stecf.org . ... Maintained by HST 3 Webmaster <HST3@stecf.org> . ...

... The bright supernova (hereafter SN) in the galaxy NGC 4527 was first sighted by S. Knight (USA) on April 13.17UT at magnitude ~14.0v. The report of the sighting was subsequently forwarded by phone to the AAVSO. ... SN 1991T. The galaxy NGC 4527 is an Sb(s)II type galaxy with an apparent Blue magnitude of 11.32 (Shapley-Ames, 1981). ... An analysis of this event utilizing visual observations by amateurs, plus a light curve is presented.. ... THE LIGHT CURVE: . ... ISN SN 1991T web page . ...

... The greenhouse effect . ... The Earth receives short-wave radiation from the sun, one-third of which is reflected back out to space. The remaining radiation is absorbed by the surface and heats up the planet. Then the Earth emits infra-red radiation because of the greenhouse gases contained in the atmosphere. ... Problems arise when greenhouse gases such as carbon dioxide and methane increase due to human activities and the Earth gets hotter. ...

... Master . ... Zel'dovich asteroid . ... August 29, 2013: Asteroid (11438) Zeldovich discovered 40 years ago . ... Asteroid (11438) has quite an elongated orbit with a period of 3.25 yr and eccentricity 0.19 (twice that of Mars). ... Asteroid will be located in Cancer constellation at the distance of 1.63 AU from Earth and 2.62 AU from the Sun (near the aphelion of its orbit), with the magnitude being 17.0m. Telescopes of MASTER network will definitely observe asteroid (11438) Zeldovich in early 2014....

Программа EOM - "Earth Observation Mission" рассматривалась как возможность повторения части наиболее интересных экспериментов, проведенных в 1983 году во время полета "Spacelab-1". ... А так как первый полет EOM-1 планировался на июнь 1985 года, и времени подготовить новых специалистов по полезной нагрузке было мало, в мае 1984 года было решено назначить в экипаж обоих американских СПН из группы "Spacelab-1". ... Так как полет откладывался, в середине 1985 года было решено отобрать еще двух СПН. ...

... В центре Земли находится твердое железное ядро. ... Между тем условия на поверхности Земли заметно отличаются от других планет: нигде нет воды в жидком состоянии, нет атмосферы, богатой кислородом, которые существуют на нашей планете уже более 4,5 млрд. лет и будут существовать благодаря природе и человеческой деятельности. Первые живые организмы появились на Земле около 3,8 миллиардов лет назад. ... Внешнее ядро . ... Ядро (радиус) . ... Сила тяжести на поверхности (Земля=1) . ... Назад ] | ...

... 1980 . ... A three-stage version of China's CSS-X4 intercontinental ballistic missile is being developed for various space applications. ... The rocket - to be known as "Long March 3"- has four gimbal-mounted engines in the first stage developing a com?bined thrust of some 280 tonnes. ... Four small gimbal-mounted motors provide thrust-vector control. ... The third stage, which employs LO 2 /LH 2 propellants, has four gimbal-mounted thrust chambers. ... CHINESE ASTRONAUTS. ...

Research staff . ... Institute of Applied Astronomy . ... Beskrovnaya N.A. beskr@pulkovo.spb.su . Pulkovo Astronomical Observatory . ... Astronomical Institute of SPbSU . ... A.F.Ioffe Institute of Physics and Technology . ... Yudin R.V. ruslan@pulkovo.spb.su . ...

The sections <Directory> , <Location> and <Files> can contain directives which only apply to specified directories, URLs or files respectively. Also htaccess files can be used inside a directory to apply directives to that directory. ... The order of merging is: . ... If multiple <Directory> sections apply to the same directory they are processed in the configuration file order. ... Using the options in question is only possible inside a <Directory> section (or a .htaccess file). ...

Please enter the lightcurve file name and period search parameters: . Lightcurve file: . ... Apply the Heliocentric correction and convert all dates to Terrestrial Time (TT)? ... Phase range for plots: -0.5 to 1.0 0.0 to 2.0 0.0 to 1.0 . ... Also, the Heliocentric correction cannot be applied to such lightcurves. ... Two period search methods are currently implemented. ... This period search service is also available at the mirror sites: Mirror 1 , Mirror 2 , Mirror 3 , Mirror 4 . ...