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NGC 5555 is a distant spiral galaxy located in the constellation Virgo. Its velocity in respect to the cosmic microwave background is 11,200 ± 20 km/s, corresponding to a Hubble Distance of 165 ± 12 Mpc (~538 million light-years).[1] It was discovered by Ormond Stone in 1886 who described it as "very faint, small, irregularly round with a bright middle nucleus."[2]
| NGC 5555 | |
|---|---|
 The spiral galaxy, NGC 5555. | |
| Observation data (J2000 epoch) | |
| Constellation | Virgo |
| Right ascension | 14h 18m 48.0s |
| Declination | −19° 08′ 20.1″ |
| Redshift | 0.036515 ± 0.000033 |
| Heliocentric radial velocity | 10,947 ± 10 km/s |
| Distance | 539 Mly (165.20 ± 11.57 Mpc) |
| Apparent magnitude (V) | 14.5 |
| Apparent magnitude (B) | 15.3 |
| Surface brightness | 13.51 |
| Characteristics | |
| Type | Sb |
| Size | Approximately 143,000 ly (43.92 kpc) |
| Apparent size (V) | 1.0' x 0.4' |
| Other designations | |
| PGC 51124, ESO 579-15, MCG -03-36-011, IRAS 14160-1854 | |
The galaxy morphology of NGC 5555 is Sb,[3][4][5] and it is known to contain regions of ionized hydrogen.[1]
To date, three non-redshift measurements give NGC 5555 a distance of 151,000 ± 6.245 megaparsecs (~493 million light-years), which is just within Hubble distance values.[6]
References
edit- ^ a b "NASA/IPAC Extragalactic Database results for NGC 5555". ned.ipac.caltech.edu. Retrieved 2024-08-16.
- ^ "New General Catalog Objects: NGC 5550 - 5599". cseligman.com. Retrieved 2024-08-16.
- ^ "Revised Data from NGC/IC Catalogue, from NGC 5500 to 5599". astrovalleyfield.ca. Retrieved 2024-08-16.
- ^ "Revised NGC Data for NGC 5555". spider.seds.org. Retrieved 2024-08-16.
- ^ "NGC 5555 - spiral galaxy. Description NGC 5555:". kosmoved.ru. Retrieved 2024-08-16.
- ^ "NED Distance Results for NGC 5555". ned.ipac.caltech.edu. Retrieved 2024-08-16.
External links
edit
Media related to NGC 5555 at Wikimedia Commons- NGC 5555 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
