The Earth. ... The middle raiding of the Earth is 6371,032 km, the pole 6356,777 km equatorial - 6378,160 km. The Earth surface area is 510,2 mln km^2, 70,8% of which is the World ocean. ... According to the modern cosmogonical views the Earth was formed 4,6 - 4,7 billions years ago from the protoplanet cloud captured by the Sun. ... The Earth is conditionally divided into 3 parts: a bark a cloak and a core (in the centre). The external layer - the bark is 35 km thick. ... Above the Earth. ...

... Ciel Espace, le magazine qui vous guide toujours plus loin . ... Ciel Espace, nouvelle formule, c'est . des actualitГїs . ... des interviews, des portraits . les plus belles images de l'Univers dГїcryptГїes pour vous . ... des pages consacrГїes Г la publication de vos photos Mais c'est aussi une vraie communautГї avec laquelle partager votre passion et nourrir votre curiositГї. Accueil Г? la une Voyage au coeur d'un trou noir . ... Page 12 . ... Cygnus X-1, trou noir stellaire modГЕle . ...

Солнце . ... полный оборот вокруг оси за 25,4 дня по экватору, за 36 дней у полюсов . ... полный оборот вокруг Солнца за 0,24 года (около 88 дней, со скоростью 50 км/сек) . ... полный оборот вокруг Солнца за 0,615 года (224,7 дня) . ... полный оборот вокруг Солнца за 1 год (365,256 дня) . ... полный оборот вокруг Солнца за 1,88 года (686,98 дня) . ... полный оборот вокруг Солнца за 11,856 года . ... полный оборот вокруг Солнца за 29,46 года . ... полный оборот вокруг Солнца за 83,747 года . ...

. home . product . gallery . contact .

... Iowa Robotic Telescope | ... Talon is based on OCAAS, a software suite developed by software engineer Elwood Downey ( Clear Sky Institute ) for use at the University of Iowa ?s first remote facility (the ATF, or Automated Telescope Facility). ... XObservatory : Telescope Control Interface . ... This program calls upon and coordinates much of the interrelated portions of the Talon architecture, and forms the primary control panel for the telescope, dome, and peripheral systems when used locally. ...

The Database of Close Binary Systems . ... Team . ... This web-based interactive database is being developed and maintained by a team at the Sternberg Astronomical Institute of the Moscow State University . The project is an on-line extension of our catalogue on "Highly Evolved Close Binary Stars" (volumes I, II) published by Gordon and Breach in 1996. As of September 2009, the database (both the software and the content) is in its development/testing phase. ...

RADIOASTROPHYSICAL DEPARTMENT • INSTITUTE OF SOLAR-TERRESTRIAL PHYSICS RAS SB . General information Main characteristics of the Radio telescope Observing programs General view of the antenna array Main research areas Principle of generation of radio images Radio telescope 's beam Receiving systems Main characteristics of the base receiving-recording complex Calibrations Data archive and databases Publication SSRT - Siberian Solar Radio Telescope . ...

... Data access . ... Updated data on the current orientation of the spacecraft Coronas-Photon in the ecliptic coordinate system. ... Data are updated 4 times a day. download the data for three months . download the data for all time . download the data for three months . ... The TESIS observatory (LPI) . TESIS: www.tesis.lebedev.ru . 1953-2016 Laboratory of X-ray astronomy of the Sun, LPI RAS, Russia . ... 7(499)132-65-96, Fax: +7(499)132-65-97 . ...

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 . ...

... 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 ] | ...

. Please enter the lightcurve FITS file name: . Lightcurve file: . Please note, the output dates are Barycentric-corrected Julian Dates expressed in Terrestial Time - BJD(TT). A similar FITS-to-ASCII lightcurve converter is available for SuperWASP data. If you have questions, bug reports or suggestions how to improve this service, please fell free to contact the author (Kirill Sokolovsky) via e-mail: kirx[at]scan.sai.msu.ru .

... Р?С?С?С?Р?Р?Р?Р?РеС?Р?С?Р?РеР? ... Launched on February 17, 1996, the Near Earth Asteroid Rendezvous (NEAR) mission is to be the first of NASA's Discovery missions, a series of small-scale spacecraft designed to proceed from development to flight in under three years for a cost of less than $150 million. ... The ultimate goal of the mission is to rendezvous with and achieve orbit around the near Earth asteroid 433 Eros in February, 1999, and study the asteroid for approximately one year. ...