Astronomy:NGC 755
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Short description: Galaxy in the constellation Cetus
| 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] |
| Helio 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] | |
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]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 "NGC 755". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NGC+755.
- ↑ 2.0 2.1 2.2 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. doi:10.22323/1.014.0077. 77. Bibcode: 2004bdmh.confE..77K.
- ↑ Ford, Dominic. "The galaxy NGC 755 - In-The-Sky.org" (in en). https://in-the-sky.org/data/object.php?id=799.
External links
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