Solar sail — Solar sails (also called light sails or photon sails, especially when they use light sources other than the Sun) are a proposed form of spacecraft propulsion using large membrane mirrors. Radiation pressure is about 10 5 Pa at Earth s distance… … Wikipedia
Formation and evolution of the Solar System — Artist s conception of a protoplanetary disk The formation and evolution of the Solar System is estimated to have begun 4.568 billion years ago with the gravitational collapse of a small part of a giant molecular cloud … Wikipedia
COROT — Model of the Corot satellite General information NSSDC ID 2006 063A Organization … Wikipedia
Variable star — A star is classified as variable if its apparent brightness as seen from Earth changes over time, whether the changes are due to variations in the star s actual luminosity, or to variations in the amount of the star s light that is blocked from… … Wikipedia
Procyon — This article is about the star. Procyon is also the mammalian genus to which raccoons belong. Starbox begin name=Procyon A/B Starbox image caption=The position of Procyon. Starbox observe epoch=J2000 constell=Canis Minor ra=07h 39m 18.1/17.7s dec … Wikipedia
Asteroseismology — Different oscillation modes penetrate to different depths inside a star. Asteroseismology (from Greek ἀστήρ, astēr, star ; σεισμός, seismos, earthquake ; and λογία … Wikipedia
New Technology Telescope — Organization European Southern Observatory Location La Silla Observatory, Chile … Wikipedia
Kepler Mission — Infobox Spacecraft Name = Kepler Mission Caption = Conceptual drawing of the Kepler Spacecraft Organization = NASA Major Contractors = Ball Aerospace Mission Type = Space observatory Satellite Of = Sun Launch = No earlier than April 10, 2009… … Wikipedia
Outline of astronomy — Mauna Kea in Hawaii is one of the world s premier observatory sites. Pictured is the W. M. Keck Observatory, an optical interferometer. The following outline is provided as an overview of and topical guide to astronomy: Astronomy – studies the… … Wikipedia
Ni Indi — Constelación Indus Ascensión recta α 22h 24min 36,88s Declinación δ 72º 15’ 19,5’’ Distancia … Wikipedia Español
