List of articles in "Celestial Body" category - Page 2271

944 Hidalgo (/hɨˈdælɡoʊ/ hi-DAL-goh) is a small Solar System body with a semi-major axis beyond Jupiter’s and an orbital period of 13.77 years. This makes it a centaur the first […]

Comet Churyumov–Gerasimenko officially designated 67P/Churyumov–Gerasimenko is a comet with a current orbital period of 6.45 years. It will next come to perihelion on 13 August 2015. Comet Churyumov–Gerasimenko is the […]

90482 Orcus is a planetoid in the Kuiper belt with a large moon Vanth. It was discovered on February 17 2004 by Michael Brown of Caltech Chad Trujillo of the […]

RXJ1242-11 is an elliptical galaxy located approximately 200 megaparsecs (about 650 million light-years) from Earth. According to current interpretations of X-ray observations made by the Chandra X-ray Observatory and XMM-Newton […]

3C 279 (also known as 4C–05.55 NRAO 413 and PKS 1253–05) is an optically violent variable quasar (OVV) which is known in the astronomical community for its variations in the […]

5 Astraea is a large asteroid from the asteroid belt. Its surface is highly reflective (bright) and its composition is probably a mixture of nickel–iron with silicates of magnesium and […]

BPM 37093 (V886 Centauri) is a variable white dwarf star of the DAV or ZZ Ceti type with a hydrogen atmosphere and an unusually high mass of approximately 1.1 times […]

T Tauri is a variable star in the constellation Taurus the prototype of the T Tauri stars. It was discovered in October 1852 by John Russell Hind. T Tauri appears […]

Stellar dynamics is the branch of astrophysics which describes in a statistical way the collective motions of stars subject to their mutual gravity. The essential difference from celestial mechanics is […]

T Pyxidis (T Pyx) is a recurrent novaand nova remnant in the constellation Pyxis. It’s a binary star system and is estimated at about 4783 parsecs (15600 light-years) from Earth. […]