List of articles in "Celestial Body" category - Page 2274

The Pinwheel Galaxy (also known as Messier 101 M101 or NGC 5457) is a face-on spiral galaxy distanced 21 million light-years (six megaparsecs) away in the constellation Ursa Major first […]

Asteroid 3163 Randi was discovered on August 28 1981 by Charles T. Kowal at Palomar Observatory California. It has an orbital period of 3.705 years and a semi-major axis of […]

(143649) 2003 QQ47 (also written 2003 QQ47) is an asteroid which became briefly notable upon its discovery in late August 2003 when media outlets played up a very preliminary report […]

Stellar radio sources radio source stars or radio stars are stellar objects that produce copious emissions of various radio frequencies whether constant or pulsed. Radio emissions from stars can be […]

GY Andromedae (GY And) is an α2 Canum Venaticorum type variable star in the northern constellation Andromeda. Its brightness fluctuates in visual magnitude between 6.27m and 6.41m making it a […]

W Ursae Majoris (W UMa) is the variable star designation for a binary star system in the northern circumpolar constellation of Ursa Major. It has an apparent visual magnitude of […]

Luyten’s Star (GJ 273) is a red dwarf in the constellation Canis Minor located at a distance of approximately 12.36 light-years (3.79 parsecs) from the Sun. It has a visual […]

Upsilon Andromedae (υ Andromedae υ And) is a binary star located approximately 44 light-years from Earth in the constellation Andromeda. The primary star (Upsilon Andromedae A) is an F-type main-sequence […]

Castor (α Gem α Geminorum Alpha Geminorum) is the second brightest star in the constellation Gemini and one of the brightest stars in the night sky. Although it has the […]

The main belt asteroid 11169 Alkon was discovered by the Lincoln Laboratory at the Massachusetts Institute of Technology. The Ceres Connection program was established in partnership with Science Service to […]