NGC 755 | |
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NGC 755 as seen from the Sloan Digital Sky Survey | |
Observation data (J2000 epoch) | |
Constellation | Cetus |
Right ascension | 01 56 22.685 |
Declination | −09° 03′ 41.15″ |
Redshift | 0.005490 |
Heliocentric radial velocity | 1641.2 km/s |
Distance | 69 Mly (21.3 Mpc) |
Apparent magnitude (B) | 13.2 |
Absolute magnitude (V) | −18.27 |
Characteristics | |
Type | SBcd |
Other designations | |
NGC 763, MCG -02-06-005, PGC 7262 |
NGC 755 is an emission line spiral galaxy in the constellation of Cetus. The galaxy's velocity of 1641.2 km/s was used to calculate its distance using the Tully–Fisher relation. Its dark matter halo was found to be core-dominated, in agreement with predictions from the lambda-CDM model of cosmology.
References
- ^ "NGC 755". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2019-09-02.
- ^ 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
- Media related to NGC 755 at Wikimedia Commons
- ned.ipac.caltech.edu
Astronomical catalogs | |
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NGC |
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