The source function is a characteristic of a stellar atmosphere and in the case of no scattering of photons describes the ratio of the emission coefficient to the absorption coefficient. […]
List of articles in "Celestial Body" category - Page 2019
Zeta Cephei
Zeta Cephei (ζ Cep ζ Cephei) is a star in the constellation of Cepheus. Zeta Cephei marks the left shoulder of Cepheus the King of Joppa (Ethiopia). Zeta Cephei is […]
XO-1
XO-1 is a magnitude 11 yellow dwarf star located approximately 560 light-years away in the constellation Corona Borealis. XO-1 has a mass and radius similar to the Sun.In 2006 the […]
XO Telescope
The XO Telescope is a telescope located on the 3054 m summit of Haleakala on Maui Hawaii formed by a pair of 200 mm telephoto lenses. It is used by […]
LS I +61 303
LS I +61 303 is a binary system harboring a compact object and a massive star (possibly a microquasar) that emits HE and VHE (High Energy and Very High Energy) […]
U Geminorum
U Geminorum (U Gem) in the constellation Gemini is an archetypal example of a dwarf nova. The binary star system consists of a white dwarf closely orbiting a red dwarf. […]
V354 Cephei
V354 Cephei is a red supergiant star located within the Milky Way. It is an irregular variable located approximately 9000 light-years away from our Sun and is currently considered one […]
KW Sagittarii
KW Sagittarii is a red supergiant located approximately 2400 parsecs away from our Sun in the direction of the constellation Sagittarius. The distance is based on the assumption of membership […]
2202 Pele
2202 Pele is an asteroid. It is a Mars-crosser asteroid that is this type of asteroid’s orbit crosses the orbit of Mars. It is an Amor asteroid that is this […]
1322 Coppernicus
(1322) Coppernicus is an asteroid orbiting the Sun. It was discovered on 15 June 1934 by the German astronomer Karl Wilhelm Reinmuth in Heidelberg. The name refers to astronomer Nicolaus […]