The Star called the Sun. The Sun as the star . ... The visible star value . ... Spectrum class . ... 149 597 870 km . ... The Solar energy sourse is the core transformation of the Sun, where temperature is 15 000 000 K. The energy from inside is carried by irradiation and then in the external layer with 0,2 Ra of thikness - by convection. ... The Earth, situating far from the Sun (149 mil km), receives about 2.1017 W of the Solar beam energy (see item "The Solar constant" ). ...

... Introduction: E-, M- and S-type asteroids are widely considered as remnants of differentiated parent bodies; specifically, Ms might have been their cores [e. g., 1, 2]. The conviction is based on the visible-range albedo (medium to high) and overall spectral curves (slightly reddish to red) of the small planets corresponding to these of metal iron and igneous silicate assemblages. ... It seems the spectral features superimpose to the spectral characteristics of metal iron and igneous silicates. ...

Kent, Great Britain . ... school. ... We go to Derwent Lodge School, private . school for girls. ... We go to Derwent Lodge, Sommerhill a private school ( where our parents pay). ... We have to get to school by 8:30 and school ends at 4:30, Yippee at last; . ... Our school is called Derwent Lodge; it is in a group of schools called . ... Our school is called The Schools at . ... Our names are Alex and Oona we go to a school called Derwent Lodge. ... Hello, we go to Derwent Lodge School for girls. ...

... Exposure Time Calculator (ETC) . Survey processing . ... VISTA is a 4-m class wide field survey telescope for the southern hemisphere, equipped with a near infrared camera (1.65 degree diameter field of view at VISTA's nominal pixel size) containing 67 million pixels of mean size 0.34 arcsec and available broad band filters at Z,Y,J,H,K s and a narrow band filter at 1.18 micron. A wide field visible camera, if constructed, could also be used on VISTA. ... Tile . ... ESO VISTA Public Surveys . ...

... Therefore, the observatory supports educational events, occured in the SAO, including astronomical and astrophysical schools, lectures and excursions at the SAO's telescopes. ... Thursday 9-00 Breakfast 9-30 Opening of the School and Astronomical Olimpiad 10-15 Photo of particapants (near the SAO entrance) 10-30 Lecture about Specail Astrophysical observatory. Chentsov E.L. 13-30 Lunch 14-00 Excursion to historical places of Nizhnij Arkhyz 18-00 Dinner 19-00 Acquaintance evening. ...

Observational Stellar Astronomy . Articles | ... We are made of star stuff" . ... TEMPERATURE OF A STAR: . ... The temperature of a star can be found out easily by simple observations. ... STAR . ... SPECTRAL CLASS: . All the stars in this universe are divided in to spectral classes based on their spectral lines. ... The spectral class of a star and the temperature of a star are related. So the spectral class can be found for a star since we know its temperature. ... www.astronomy.net . ...

CREW 21/22 . ... ISS-21 IMAGE . ... EXPEDITION 21/22 (ISS-21/22) . BACKUP CREW . ... Military Pilot, 1st Class, . Test Cosmonaut, Yu.A. Gagarin Cosmonaut Training Center, Russia . ... His farther is Aleksandr Aleksandrovich Skvortsov, born in 1942, former student - cosmonaut of AF CTC, enrollment in 1965. ... I n August 2007 he was preliminarily assigned to backup crew of the ISS expedition 21. In July 2008 it was reported that he had been assigned to Prime crew of ISS Expedition 24. ...

... Galaxies with polar rings (PRGs) are a unique class of extragalactic objects, consisting of a ring or disk of gas, stars and dust orbiting in a plane nearly perpendicular to the disk of a central galaxy. ... At present, there are only about two dozen kinematically confirmed galaxies in this PRG class, mostly from the Whitmore et al. (1990) catalogue, based on photographic images. ... Examples of object from our catalogue SPRC (=SDSS-based Polar Ring Catalogue). ...

... For Teachers . ... Covering the Earth's magnetism in a high school course on Earth sciences addresses two important problems of the science curriculum. On one hand , the customary sequence allocates to physics just one year (and that as an elective!), not nearly enough to sample all areas of physics. ... The story of Oersted and his unexpected discovery of a link between magnetism and electricity prepares the student for later study of electromagnetism in physics class. ...

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