Cetus Dwarf

Cetus Dwarf
Cetus Dwarf
Observation data (J2000 epoch)
Constellation Cetus
Right ascension 00h 26m 11.0s[1]
Declination -11° 02′ 40″[1]
Distance 2.46 ± 0.08 Mly (755 ± 24 kpc)[2]
Type dSph[1]
Apparent dimensions (V) 5′.0 × 4′.3[1]
Apparent magnitude (V) 14.4[1]
Other designations
PGC 3097691[1]
See also: Galaxy, List of galaxies

Cetus Dwarf is a dwarf spheroidal galaxy. It lies approximately 2.46 Million light-years from Earth. It is an isolated galaxy of the Local Group, which also contains the Milky Way. All of the most readily observable stars in the galaxy are red giants.[1]

Contents

History

The Cetus Dwarf was discovered in 1999 by Alan Whiting, George Hau and Mike Irwin and was found to be a member of the Local Group.[2][3]

Characteristics

As of 2000, no known neutral hydrogen gas has been found that is related to the Cetus dwarf galaxy.[3]

References

  1. ^ a b c d e f "NASA/IPAC Extragalactic Database". Results for Cetus Dwarf. http://nedwww.ipac.caltech.edu/. Retrieved 2006-12-23. 
  2. ^ a b McConnachie, A. W.; Irwin, M. J.; Ferguson, A. M. N.; Ibata, R. A.; Lewis, G. F.; Tanvir, N. (2005). "Distances and metallicities for 17 Local Group galaxies". Monthly Notices of the Royal Astronomical Society 356 (4): 979–997. arXiv:astro-ph/0410489. Bibcode 2005MNRAS.356..979M. doi:10.1111/j.1365-2966.2004.08514.x. 
  3. ^ a b van den Bergh, Sidney (April 2000). "Updated Information on the Local Group". The Publications of the Astronomical Society of the Pacific 112 (770): 529–536. arXiv:astro-ph/0001040. Bibcode 2000PASP..112..529V. doi:10.1086/316548. 

External links

Coordinates: Sky map 00h 26m 11s, −11° 02′ 40″


Wikimedia Foundation. 2010.

Игры ⚽ Нужна курсовая?

Look at other dictionaries:

  • Brown dwarf — Brown dwarfs are sub stellar objects which are too low in mass to sustain hydrogen 1 fusion reactions in their cores, which is characteristic of stars on the main sequence. Brown dwarfs have fully convective surfaces and interiors, with no… …   Wikipedia

  • Draco Dwarf — Central part of Draco Dwarf by HST Observation data (J2000 epoch) Constellation …   Wikipedia

  • Ursa Major I Dwarf — Галактика История исследования Обозначения UMa I dwarf, Ursa Major I dSph Наблюдательные данные (Эпоха J2000.0) Созвездие …   Википедия

  • Ursa Major II Dwarf — Галактика История исследования Обозначения UMa II dwarf, Ursa Major II dSph Наблюдательные данные (Эпоха J2000.0) Созвездие …   Википедия

  • Eris (dwarf planet) — Eris   Eris (centre) and Dysnomia (left of centre). Hubble Space Telescope …   Wikipedia

  • Coma Berenices (dwarf galaxy) — Coma Berenices Dwarf Galaxy[1] Observation data (J2000 epoch) Constellation Coma Berenices Right ascension 12h 26m 59s …   Wikipedia

  • Leo I (dwarf galaxy) — Leo I Observation data (J2000 epoch) Constellation Leo Right ascension 10h 08m 27.4s[1] …   Wikipedia

  • Leo II (dwarf galaxy) — Leo II Observation data (J2000 epoch) Constellation Leo Right ascension 11h 13m 29.2s [1] …   Wikipedia

  • Local Group — The Local Group is the group of galaxies that includes our galaxy, the Milky Way. The group comprises over 35 galaxies, with its gravitational center located somewhere between the Milky Way and the Andromeda Galaxy. The galaxies of the Local… …   Wikipedia

  • Местная группа — Галактики Местной группы Местная группа галактик  гравитационно связанная группа галактик, включающая галактики Млечный Путь, галактику Андромеды (M31) и галактику Треуголь …   Википедия

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”