... Moon Phase below . ... ARTICLE: Why the moon always shows us the same face . ... Before you continue reading, you should know that this was not always the case, i.e. the Moon once was rotating with respect to the Earth, so that on every night a terrestrial observer (if there was one, because this was long, long before mankind appeared on our planet, and even before any major animals had appeared) saw another face of the Moon. ... Figure 1 (not to scale) shows how we can imagine the system Earth-Moon...

Welcome to Siberia! This is a small part of our "Astronomy from Siberia" web-site. ... This pages were created especially for our foreinger partners and mostly as a part of our participation in the " International School Observatory " project. ... I'm Sergey Guryanov (Mr.) - an astronomy and physics teacher from the small Siberian town Zelenogorsk (it means something as a Green mountains town). ... Welcome to our "Yuri's Night" world space party: ( 2003 , 2004 , 2005 , 2006 ) . ...

Tuesday, September 28th, 2010 . 14-17 сентября 2010 года прошла международная конференция WEGENER (http://www NULL .koeri NULL .boun NULL .edu NULL .tr/jeodezi/wegener2010/) (Bogazici University, Istanbul / TURKEY), в которой мы приняли участие и сделали два доклада: . ... You are currently browsing the Лаборатория лазерной интерферометрии blog archives for September, 2010. ... Публикации за 2011 . Публикации за 2012 . ... Лаборатория лазерной интерферометрии is proudly powered by WordPress . ...

EVOLUTION OF GALACTIC DISCS: TWO MODES OF STAR FORMATION ABSTRACT We develop the model of the evolution of surface gas density, stellar density, star formation rates and chemical composition of galactic disc taking into account the gravitational instability of rotating gaseous layer in the scales of several kpc. ... In the model we took into account the gas return from evolved stars, a radial movement of the gas in a spiral arms and accretion of the gas into the galactic disc. ...

... ФОТОГАЛЕРЕЯ ПОЕЗДОК В САО . Лето 1998 года . Arkhyz altitude=1700m . Arkhyz altitude=2000m . Arkhyz altitude=2100m . Arkhyz altitude=2500m #1 . ... Arkhyz altitude=3000m . Arkhyz altitude=3050m . ... Copyright 2001 Игорь Чилингарян . ...

Prague, August 16, 2006 . ... Large classes (groups of types) : . ... Eruptive variable stars . ... Pulsating variable stars . ... Rotating variable stars . ... Cataclysmic (explosive and nova-like) variables . ... Close binary eclipsing systems . ... Optically variable close-binary sources of strong variable X- ray radiation . ... These classes are just a way to group types; in our opinion, they can be kept if slightly better described ( e.g ., remove close from item 5, simplify item 6) ...

... For more distant stars we must use other techniques. ... Hence if we see a distant galaxy and can pick out any cepheids lying within it, we can calculate its distance. ... Here then is another method to gauge the size of the Universe and there are yet more. volume at high enough temperature a nuclear fusion reaction sweeps across the white dwarf's surface and eventually we will see a spectacularly bright new star (hence nova) in our skies. ... Why is this relevant to the size of the Universe? ...

... ОБ ОТДЕЛЕ . ... Лукаш В.Н., Михеева Е.В. 'Физическая космология' М: Физматлит, 2010. ... Doroshkevich A., Verkhodanov O. 'CMB component separation in the pixel domain', Phys. Rev. D, vol. 83, id 043002, 2011 г. 4. ... Demianski M., Doroshkevich A.G., Pilipenko S.V., Gottloeber S. 'Simulated evolution of the dark matter large scale structure', MNRAS, 414, 1813-1826, 2011 г. 8. ... Комберг Б.В., Ермаш А.А., 'Морфология и эволюционный статус активных галактик типа NLSyI', Препринт ФИАН ?31, 2011 г. 14....