proplyd
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Proplyd — … Википедия
Solar analog — Solar Type, Solar Analog, and Solar Twin stars are those stars that are particularly similar to the Sun, with solar twin being more similar than solar analog, and solar type being less similar than solar analog. Observations of these stars are… … Wikipedia
Pulsar-Planet — Eine künstlerische Darstellung des Planetensystems von PSR B1257+12. Pulsar Planeten sind Exoplaneten, die Pulsare oder Neutronensterne umkreisen. Der erste dieser Planeten wurde um einen Millisekundenpulsar entdeckt und war zugleich der erste… … Deutsch Wikipedia
Hubble Space Telescope — Infobox Space telescope name = Hubble Space Telescope (HST) caption = The Hubble Space Telescope as seen from Space Shuttle Discovery during its second servicing mission (STS 82) organization = NASAESASTScI alt names = nssdc id =… … Wikipedia
H II region — An H II region (also known as emission nebula) is a cloud of glowing gas and plasma, sometimes several hundred light years across, in which star formation is taking place. Young, hot, blue stars which have formed from the gas emit copious amounts … Wikipedia
Protoplanetary disk — A protoplanetary disk (or proplyd) is a rotating circumstellar disk of dense gas surrounding a young newly formed star, a T Tauri star or Herbig star. The protoplanetary disk may be considered an accretion disk because gaseous material may be… … Wikipedia
Aurelia and Blue Moon — are hypothetical examples of a planet and a moon on which extraterrestrial life could evolve. They are the outcome of a collaboration between television company Blue Wave Productions Ltd. and a group of American and British scientists who were… … Wikipedia
Timetable of the Precambrian — This is a timeline of geological and relevant astronomical events on Earth before the Cambrian period started. This covers 88% of the duration of the Earth. The dates given are based on the best current scientific evidence and where possible are… … Wikipedia
List of astronomy acronyms — This is a compilation of acronyms commonly used in astronomy. Most of the acronyms are drawn from professional astronomy and are used quite frequently in scientific publications. However, a few of these acronyms are frequently used by the general … Wikipedia
Protoplanetare Scheibe — Künstlerische Darstellung einer protoplanetaren Scheibe Eine protoplanetare Scheibe, auch zirkumstellare Scheibe oder Proplyd (engl. Kurzwort für Protoplanetary disk) genannt, ist eine flache, ringförmige Ansammlung von Gas und Staub… … Deutsch Wikipedia
