luminosity
101Type Ia supernova — A Type Ia supernova is a sub category of cataclysmic variable stars that results from the violent explosion of a white dwarf star. A white dwarf is the remnant of a star that has completed its normal life cycle and has ceased nuclear fusion.… …
102Surface brightness fluctuation — (SBF) is a secondary distance indicator used to estimate distances to galaxies. The technique uses the fact that galaxies are made up of a finite number of stars. The number of stars in any small patch of the galaxy will vary from point to point …
103Cepheid variable — Astron. a variable star in which changes in brightness are due to alternate contractions and expansions in volume. Also, cepheid variable. [1900 05; CEPHE(US) + ID1] * * * One of a class of variable stars whose period of variation is closely… …
104nova — novalike, adj. /noh veuh/, n., pl. novas, novae / vee/. Astron. a star that suddenly becomes thousands of times brighter and then gradually fades to its original intensity. Cf. supernova. [1680 90; < NL: n. use of fem. of L novus NEW] * * * Any… …
105Nova — /noh veuh/, n. 1. Also called Nova Salmon. a Pacific salmon cured in the style of Nova Scotia salmon. 2. (l.c.) (loosely) any smoked salmon. Cf. Nova Scotia salmon. * * * Any of a class of stars whose luminosity temporarily increases by several… …
106Sun — This article is about the star. For other uses, see Sun (disambiguation). The Sun …
107Denebola — For the ship in the United States Navy, see SS Denebola (T AKR 289) Denebola Denebola is located at the left apex on this map of the constellation. Observation data …
108Capella (star) — For other uses, see Capella (disambiguation). Capella Aa/Ab Capella is the brightest star in Auriga Observation data Epoch J2000.0     …
109Hertzsprung–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… …
110Barnard's Star — The location of Barnard s Star Observation data Epoch J2000.0      Equinox J2000.0 …
