NGC 755 is an emission line spiral galaxy in the constellation of Cetus.[1][3] The galaxy's velocity of 1641.2 km/s was used to calculate its distance using the Tully–Fisher relation.[1][2] Its dark matter halo was found to be core-dominated, in agreement with predictions from the lambda-CDM model of cosmology.[2]
| NGC 755 | |
|---|---|
 NGC 755 as seen from the Sloan Digital Sky Survey | |
| Observation data (J2000 epoch) | |
| Constellation | Cetus |
| Right ascension | 01h 56m 22.685s[1] |
| Declination | −09° 03′ 41.15″[1] |
| Redshift | 0.005490[1] |
| Heliocentric radial velocity | 1641.2 km/s[1] |
| Distance | 69 Mly (21.3 Mpc)[2] |
| Apparent magnitude (B) | 13.2[1] |
| Absolute magnitude (V) | −18.27 |
| Characteristics | |
| Type | SBcd[1] |
| Other designations | |
| NGC 763, MCG -02-06-005, PGC 7262[1] | |
References
edit- ^ a b c d e f g h i "NGC 755". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2019-09-02.
- ^ a b c Kenn, Franz; Jazsa, Gyula; Gentile, Gianfranco; Klein, Uli (2004-12-01). "The dark halo in the spiral galaxy NGC 755". Proceedings of Baryons in Dark Matter Halos: 77. Bibcode:2004bdmh.confE..77K. doi:10.22323/1.014.0077. 77.
- ^ Ford, Dominic. "The galaxy NGC 755 - In-The-Sky.org". in-the-sky.org. Retrieved 2019-09-02.
External links
edit
Media related to NGC 755 at Wikimedia Commons- ned.ipac.caltech.edu
 | This spiral galaxy article is a stub. You can help Wikipedia by expanding it. |