Tip of the red giant branch (TRGB) is a primary distance indicator used in
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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
The Catlins — (sometimes referred to as The Catlins Coast) comprises an area in the southeastern corner of the South Island of New Zealand. The area lies between Balclutha and Invercargill, straddling the boundary between the Otago and Southland regions. It… … Wikipedia
Red fox — For other uses, see Red fox (disambiguation). Red fox Temporal range: Mid Pleistocene–Recent European red fox (V. v. crucigera) Conservation status … Wikipedia
The Sawhorse — The Saw Horse, sometimes spelled Sawhorse, is a character from L Frank Baum s Oz books series. He first appears in the The Marvelous Land of Oz .The Saw Horse is literally a sawhorse brought to life with the powder of life by Tip to carry Jack… … Wikipedia
Hertzsprung-Russell diagram — The Hertzsprung Russell diagram (usually referred to by the abbreviation H R diagram or HRD, also known as a colour magnitude diagram, or CMD) shows the relationship between absolute magnitude, luminosity, classification, and effective… … Wikipedia
List of minor The Hitchhiker's Guide to the Galaxy characters — The following is an alphabetical list of the minor characters in the various versions of The Hitchhiker s Guide to the Galaxy, by Douglas Adams. The descriptions of the characters are accompanied by information on details about appearances and… … Wikipedia
List of The Colbert Report episodes (2007) — This list of episodes of The Colbert Report details information on all 2007 episodes of The Colbert Report, a popular Comedy Central show hosted by Stephen Colbert, and produced by Colbert, Jon Stewart, and Ben Karlin. Colbert plays the role of a … Wikipedia
Hertzsprung–Russell diagram — Hertzsprung–Russell diagram[1] with 22,000 stars plotted from the Hipparcos catalog and 1,000 from the Gliese catalog of nearby stars. Stars tend to fall only into certain regions of the diagram. The most predominant is the diagonal, going from… … Wikipedia
Principal national parks of the world — ▪ Table Principal national parks of the world Africa Europe and Russia Asia North America and the Caribbean Australia and Oceania South America Africa country national park date area description protected status national park status square miles… … Universalium
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
