astro.wikisort.org - Galaxy
NGC 4608 is a barred lenticular galaxy located in the constellation of Virgo. The galaxy was discovered by astronomer William Herschel on March 15, 1784.[3] At about 56 million light-years (17.3 megaparsecs) away,[2] it is a member of the Virgo Cluster.[4]
| NGC 4608 | |
|---|---|
 SDSS image of NGC 4608. | |
| Observation data (J2000 epoch) | |
| Constellation | Virgo |
| Right ascension | 12h 41m 13.286s[1] |
| Declination | +10° 09′ 20.38″[1] |
| Redshift | 0.00617[1] |
| Helio radial velocity | 1850 km/s[1] |
| Distance | 56.4 ± 2.6 Mly (17.3 ± 0.8 Mpc)[2] |
| Group or cluster | Virgo Cluster |
| Apparent magnitude (V) | 11.97[1] |
| Characteristics | |
| Type | SB00(r)[1] |
| Size | ~53,105.36 ly (estimated) |
| Apparent size (V) | 3.2′ × 2.7′[1] |
| Other designations | |
| UGC 7842, MCG +02-32-177, PGC 42545[1] | |
Physical characteristics
NGC 4608 has a very well-defined bar. Surrounding the bar, there is an inner ring that is defined by a sharp inner edge. Outside of the inner ring,[5] there is a low surface brightness disk[6] that contains weak spiral features.[5]
The center of NGC 4608 is a classical bulge, which is a bulge similar to an elliptical galaxy.[2] The disk in NGC 4608 is practically considered non-existent. One explanation is that the bar in the galaxy was able to form without a disk. Another explanation says that a weak bar forms initially. Over time, the bar grows by causing the external disk to lose angular momentum therefore funneling material toward the bulge. Then the bar would be surrounded by a halo with very little or no disk left.[6]
See also
References
- "Results for object NGC 4608 (NGC 4608)". NASA/IPAC Extragalactic Database. California Institute of Technology. Retrieved 2021-04-26.
- Erwin, Peter; Seth, Anil; Debattista, Victor P.; Seidel, Marja; Mehrgan, Kianusch; Thomas, Jens; Saglia, Roberto; De Lorenzo-Cáceres, Adriana; MacIejewski, Witold; Fabricius, Maximilian; Méndez-Abreu, Jairo; Hopp, Ulrich; Kluge, Matthias; Beckman, John E.; Bender, Ralf; Drory, Niv; Fisher, Deanne (2021). "Composite bulges – II. Classical bulges and nuclear discs in barred galaxies: The contrasting cases of NGC 4608 and NGC 4643". Monthly Notices of the Royal Astronomical Society. 502 (2): 2446–2473. arXiv:2101.05321. Bibcode:2021MNRAS.502.2446E. doi:10.1093/mnras/stab126.
- "New General Catalog Objects: NGC 4600 - 4649". cseligman.com. Retrieved 2017-09-03.
- "Detailed Object Classifications". ned.ipac.caltech.edu. Retrieved 2017-09-04.
- "NGC 4608 - SB(r)0/a". The de Vaucouleurs Atlas of Galaxies. Retrieved 2017-09-04.
- Gadotti, D. A.; de Souza, R. E. (8 January 2003). "NGC 4608 and NGC 5701: Barred Galaxies without Disks?". The Astrophysical Journal. 583 (2): L75–L78. arXiv:astro-ph/0301072. Bibcode:2003ApJ...583L..75G. doi:10.1086/368159. S2CID 14682379.
External links
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Wikimedia Commons has media related to NGC 4608. |
- NGC 4608 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
На других языках
[de] NGC 4608
NGC 4608 ist eine 11 mag helle Linsenförmige Galaxie vom Hubble-Typ SB0 im Sternbild Jungfrau auf der Ekliptik. Sie ist schätzungsweise 80 Millionen Lichtjahre von der Milchstraße entfernt und hat einen Durchmesser von etwa 80.000 Lichtjahren. Vermutlich bildet sie gemeinsam mit NGC 4596 ein gravitativ gebundenes Galaxienpaar. Unter der Katalognummer VCC 1869 ist sie als Mitglied des Virgo-Galaxienhaufens aufgeführt. Im selben Himmelsareal befinden sich u. a. die Galaxien IC 3633, IC 3634, IC 3638, IC 3647.- [en] NGC 4608
[ru] NGC 4608
NGC 4608 (другие обозначения — UGC 7842, MCG 2-32-177, ZWG 70.214, VCC 1869, PGC 42545) — линзообразная галактика (SB0) в созвездии Дева.Другой контент может иметь иную лицензию. Перед использованием материалов сайта WikiSort.org внимательно изучите правила лицензирования конкретных элементов наполнения сайта.
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