NGC 2550A is a spiral galaxy in the constellation of Camelopardalis. Its velocity with respect to the cosmic microwave background is 3670 ± 10 km/s, which corresponds to a Hubble distance of 176.5 ± 12.4 Mly (54.12 ± 3.79 Mpc).[1] The discovery of this galaxy is credited to Philip C. Keenan, in his paper Studies of Extra-Galactic Nebulae. Part I: Determination of Magnitudes, published in The Astrophysical Journal in 1935.[2]
| NGC 2550A | |
|---|---|
 Spiral galaxy NGC 2550A | |
| Observation data (J2000 epoch) | |
| Constellation | Camelopardalis |
| Right ascension | 08h 28m 39.9646s[1] |
| Declination | +73° 44′ 53.423″[1] |
| Redshift | 0.012125[1] |
| Heliocentric radial velocity | 3635 ± 10 km/s[1] |
| Distance | 176.5 ± 12.4 Mly (54.12 ± 3.79 Mpc)[1] |
| Group or cluster | NGC 2523 Group |
| Apparent magnitude (V) | 12.7[1] |
| Characteristics | |
| Type | Sc[1] |
| Size | ~112,400 ly (34.47 kpc) (estimated)[1] |
| Apparent size (V) | 1.6′ × 1.4′[1] |
| Other designations | |
| IRAS 08230+7354, 2MASX J08283996+7344526, UGC 4397, MCG +12-08-043, PGC 23781, CGCG 331-043[1] | |
According to A.M. Garcia, NGC 2550A is a member of the NGC 2523 galaxy group (also known as LGG 154).[3] This group contains five galaxies, including NGC 2441, NGC 2523, UGC 4041, and UGC 4199.
Two supernovae have been observed in NGC 2550A. SN 2008P (type II, mag. 17.5) was discovered by Alessandro Dimai on 23 January 2008.[4] SN 2024ws (type II, mag. 17.8) was discovered by Kōichi Itagaki on 12 January 2024.[5]
See also
editReferences
edit- ^ a b c d e f g h i j k "Results for object NGC 2550A". NASA/IPAC Extragalactic Database. NASA and Caltech. Retrieved 16 November 2024.
- ^ Keenan, Philip C. (1935). "Studies of Extra-Galactic Nebulae. Part I: Determination of Magnitudes". The Astrophysical Journal. 82: 62. Bibcode:1935ApJ....82...62K. doi:10.1086/143656.
- ^ Garcia, A. M. (1993). "General study of group membership. II. Determination of nearby groups". Astronomy and Astrophysics Supplement Series. 100: 47. Bibcode:1993A&AS..100...47G.
- ^ "SN 2008P". Transient Name Server. IAU. Retrieved 16 November 2024.
- ^ "SN 2024ws". Transient Name Server. IAU. Retrieved 16 November 2024.
External links
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Media related to NGC 2550A at Wikimedia Commons- NGC 2550A on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
