- Cosmic year (astronomy)
Cosmic year (astronomy) can refer to:
*
Cosmic Calendar - a theorized scale of the life of the universe.
*Galactic year - the estimated time it takes the Sun to orbit around the Milky Way galaxy.
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Cosmic year (astronomy)
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year — /year/, n. 1. a period of 365 or 366 days, in the Gregorian calendar, divided into 12 calendar months, now reckoned as beginning Jan. 1 and ending Dec. 31 (calendar year or civil year). Cf. common year, leap year. 2. a period of approximately the … Universalium
Cosmic Calendar — The Cosmic Calendar is a scale in which the 13.7 billion year lifetime of the universe is mapped onto a single year. At this scale the Big Bang took place on January 1 at midnight, and the current time is mapped to December 31 at midnight.[1] At… … Wikipedia
Astronomy — (from the Greek words astron (ἄστρον), star , and nomos (νόμος), law ) is the scientific study of celestial objects (such as stars, planets, comets, and galaxies) and phenomena that originate outside the Earth s atmosphere (such as the cosmic… … Wikipedia
Cosmic Background Explorer — (COBE) General information NSSDC ID 1989 089A Organization NASA … Wikipedia
Astronomy Now — is a monthly British magazine on astronomy and is the UK s best selling astronomy magazine, featuring a mix of articles ranging from how to observe the night sky to the latest discoveries in the Solar System and in deep space. The magazine… … Wikipedia
astronomy — /euh stron euh mee/, n. the science that deals with the material universe beyond the earth s atmosphere. [1175 1225; ME astronomie ( < AF) < L astronomia < Gk. See ASTRO , NOMY] * * * I Science dealing with the origin, evolution, composition,… … Universalium
Cosmic microwave background radiation — CMB and Cosmic background radiation redirect here. For other uses see CMB (disambiguation) and Cosmic background (disambiguation). Physical cosmology … Wikipedia
Cosmic distance ladder — * Light green boxes: Technique applicable to star forming galaxies. * Light blue boxes: Technique applicable to Population II galaxies. * Light Purple boxes: Geometric distance technique. * Light Red box: The planetary nebula luminosity function… … Wikipedia
Cosmic dust — Space dust redirects here. For other uses, see Space dust (disambiguation). Porous chondrite interplanetary dust particle. Cosmic dust is a type of dust composed of particles in space which are a few molecules to 0.1 µm in size. Cosmic dust… … Wikipedia
Cosmic Vision — The Cosmic Vision is the paraphrasing name given to the roadmap for scientific space based missions of the European Space Agency (ESA) in the time frame between 2015 and 2025. The initial call of ideas and concepts was launched in 2004 with a… … Wikipedia
