astro.wikisort.org - Galaxy

Search / Calendar

NGC 4651 is a spiral galaxy located in the constellation of Coma Berenices that can be seen with amateur telescopes, at a distance not well determined that ranges from 35 million light years[2] to 72 million light years.[3]

NGC 4651
NGC 4651. Note the umbrella-shaped stream.
Observation data (J2000 epoch)
ConstellationComa Berenices
Right ascension12h 43m 42.6s[1]
Declination+16° 23′ 36″[1]
Redshift788 ± 2 km/s[1]
Distance72.0 Mly
Apparent magnitude (V)11.39[1]
Characteristics
TypeSA(rs)c[1]
Apparent size (V)4′.0 × 2′.6[1]
Other designations
UGC 7901,[1] PGC 42833[1]
NGC 4651 imaged by the Hubble Space Telescope
NGC 4651 imaged by the Hubble Space Telescope
Spiral galaxy NGC 4651. Credit: ESA / Hubble Space Telescope & NASA, D. Leonard
Spiral galaxy NGC 4651. Credit: ESA / Hubble Space Telescope & NASA, D. Leonard

Features


This member of the Virgo Cluster, located on its outskirts,[4] is known as the Umbrella Galaxy due to the umbrella-shaped structure that extends from its disk to the east and that is composed of stellar streams, being the remnants of a much smaller galaxy that has been torn apart by NGC 4651's tidal forces,[2][5] something that explains why NGC 4651 has been included on Halton Arp's Atlas of Peculiar Galaxies as Arp 189 -galaxy with filaments-.

Studies using radiotelescopes of the distribution of its neutral hydrogen show distortions on NGC 4651's outer regions and a gas clump associated with a dwarf galaxy that may have born in the event that produced the mentioned stellar streams.[6]

Unlike most spiral galaxies of the Virgo Cluster, NGC 4651 is rich in neutral hydrogen, also extending beyond the optical disk,[6] and its star formation is typical for a galaxy of its type.[4]


References


  1. "NASA/IPAC Extragalactic Database". Results for NGC 4651. Retrieved 2012-08-04.
  2. Nemiroff, R.; Bonnell, J., eds. (15 April 2010). "NGC 4651: The Umbrella Galaxy". Astronomy Picture of the Day. NASA. Retrieved 2012-08-04.
  3. Solanes, J. M.; Sanchis, T.; Salvador-Solé, E.; Giovanelli, R.; Haynes, M. P. (2002). "The Three-dimensional Structure of the Virgo Cluster Region from Tully-Fisher and H I Data". The Astronomical Journal. 124 (5): 2440–2452. arXiv:astro-ph/0208147. Bibcode:2002AJ....124.2440S. doi:10.1086/344074. S2CID 116914132.
  4. Koopmann, R.; Kenney, J. D. P. (2004). "Hα Morphologies and Environmental Effects in Virgo Cluster Spiral Galaxies". The Astrophysical Journal. 613 (2): 866–885. arXiv:astro-ph/0406243. Bibcode:2004ApJ...613..866K. doi:10.1086/423191. S2CID 17519217.
  5. "Stellar Tidal Streams in Spiral Galaxies of the Local Volume". Retrieved 2012-07-21.
  6. Chung, A.; Van Gorkom, J.H.; Kenney, J.F.P.; Crowl, Hugh; Vollmer, B. (2009). "VLA Imaging of Virgo Spirals in Atomic Gas (VIVA). I. The Atlas and the H I Properties". The Astronomical Journal. 138 (6): 1741–1816. Bibcode:2009AJ....138.1741C. doi:10.1088/0004-6256/138/6/1741.




На других языках

[de] NGC 4651

NGC 4651 = Arp 189, auch Regenschirm-Galaxie genannt, ist eine Spiralgalaxie vom Hubble-Typ SA(rs)c pec im Sternbild Haar der Berenike am Nordsternhimmel. Sie ist etwa 34 Millionen Lichtjahre von der Milchstraße entfernt. Sie besitzt eine filamentartige Struktur aus alten Sternen, die sich wie ein Jet über mehr als 50.000 Lichtjahre nach Osten erstreckt und in einem schirmartigen Anhängsel endet. Halton Arp gliederte seinen Katalog ungewöhnlicher Galaxien nach rein morphologischen Kriterien in Gruppen. Diese Galaxie gehört zu der Klasse Galaxien mit schmalen Filamenten.
- [en] NGC 4651

[es] NGC 4651

NGC 4651 es una galaxia espiral situada en la constelación de Coma Berenices visible con telescopios de aficionado. Es un miembro del Cúmulo de Virgo, situado en las regiones exteriores de este y a una distancia de alrededor de 52 millones de años luz (16 megaparsecs) de la Vía Láctea,[1] aunque su distancia sea un tanto controvertida y haya autores que la sitúen desde a apenas 35 millones de años luz[2] hasta a alrededor de 72 millones de años luz.[3]

[ru] NGC 4651

NGC 4651 (другие обозначения — UGC 7901, ARP 189, MCG 3-33-1, KARA 549, ZWG 100.4, VV 56, IRAS12412+1639, PGC 42833) — галактика в созвездии Волосы Вероники.


Текст в блоке "Читать" взят с сайта "Википедия" и доступен по лицензии Creative Commons Attribution-ShareAlike; в отдельных случаях могут действовать дополнительные условия.

Другой контент может иметь иную лицензию. Перед использованием материалов сайта WikiSort.org внимательно изучите правила лицензирования конкретных элементов наполнения сайта.

2019-2025
WikiSort.org - проект по пересортировке и дополнению контента Википедии