NGC 4005
| NGC 4005 | |
|---|---|
 | |
| Observation data (J2000.0 epoch) | |
| Constellation | Leo |
| Right ascension | 11h 58m 10.10s |
| Declination | +25° 07' 20" |
| Redshift | Zw 127-10 |
| Distance | Around 200 million light years |
| Apparent magnitude (V) | 13.0 |
| Apparent magnitude (B) | 1.2' × 0.7' |
| Other designations | |
| UGC 6952 PGC 37661 | |
NGC 4005 is a spiral galaxy in the Leo constellation, located close to the border with the Coma Berenices.[1][2][3][4] A faintly-glowing galaxy, its apparent magnitude is 13.0.
The American astronomer Barbara A. Williams in 1986 noted that when observations are made of 23 galaxies centred on NGC 4005, a trend is found along the major axis of the group. The correlation in the group between position and velocity's slope is greatly different from 0. Williams put forward the explanation for this that the group rotates with a period of less than 4 billion years, however other interpretations have been discussed.[5]
It was discovered by William Herschel on 6 April 1785.
Sources
- ^ "NGC 4005". simbad.u-strasbg.fr. Retrieved 2022-10-27.
- ^ Williams, B. A. (1986). "1986ApJ...311...25W Page 25". The Astrophysical Journal. 311: 25. Bibcode:1986ApJ...311...25W. doi:10.1086/164751. Retrieved 2022-10-27.
- ^ Steinicke, Wolfgang; Jakiel, Richard (2007-01-04). Galaxies and How to Observe Them. Springer Science & Business Media. ISBN 978-1-84628-699-5.
- ^ Steinicke, Wolfgang (2010-08-19). Observing and Cataloguing Nebulae and Star Clusters: From Herschel to Dreyer's New General Catalogue. Cambridge University Press. ISBN 978-1-139-49010-8.
- ^ "The NGC 4005 Group: A rotating system of galaxies?". Harvard Articles. 7 April 1986. Retrieved 27 October 2022.
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