blue galaxies

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• Blue supergiant — Blue supergiants (BSGs) are supergiant stars (luminosity class I) of spectral type O or B.They are extremely hot and bright, with surface temperatures of between 20,000 to 50,000°C. They typically have 10 to 50 solar masses on the Hertzsprung… …   Wikipedia

• Galaxies in fiction — Galaxies other than the Milky Way are popular settings for creators of science fiction, particularly those working with broad scale space opera settings. Among the most common settings are the Andromeda Galaxy, the Magellanic Clouds, and the… …   Wikipedia

• Blue shift — is the shortening of a transmitted signal s wavelength, and/or an increase in its frequency, due to the Doppler Effect, which indicates that the object is moving toward the observer. The name comes from the fact that the shorter wavelength end of …   Wikipedia

• Blue blobs — are clusters of stars outside galaxies that are possibly formed from gas collisions and subsequent turbulence. On January 2008, the Hubble space telescope detected these clusters among three colliding galaxies. [… …   Wikipedia

• Faint blue galaxy — A faint blue galaxy is a distant, irregularly shaped galaxy in which star formation occurs at a high rate. From the late 1970s it became apparent in deep galaxy surveys that a population of these blue galaxies existed at vast distances.Later… …   Wikipedia

• Antennae Galaxies — NGC 4038 (left) NGC 4039 (right) Observation data (J2000 epoch) Constellation Corvus …   Wikipedia

• Timeline of knowledge about galaxies, clusters of galaxies, and large-scale structure — Timeline of galaxies, clusters of galaxies, and large scale structure of the cosmosPre 20th Century* 400s BC Democritus proposes that the bright band in the night sky known as the Milky Way might consist of stars, * 300s BC Aristotle believes the …   Wikipedia

• Mice Galaxies — NGC 4676A / 4676B The Mice Galaxies, NGC 4676A (right)/NGC 4676B (left) Observation data (J2000 epoch) Constellation Coma Berenices …   Wikipedia

• Los Angeles Galaxies — LA Galaxy Voller Name Los Angeles Galaxy Gegründet 1995 Vereinsfarben Blau, Gold, Weiß …   Deutsch Wikipedia

• Metallicity — The globular cluster M80. Stars in globular clusters are mainly older metal poor members of Population II. In astronomy and physical cosmology, the metallicity (also called Z[1]) of an object is the proportion of its matter made …   Wikipedia

• Weak gravitational lensing — While the presence of any mass bends the path of light passing near it, this effect rarely produces the giant arcs and multiple images associated with strong gravitational lensing. Most lines of sight in the universe are thoroughly in the weak… …   Wikipedia