Astronomy:HCG 1
From HandWiki
| HCG 1 | |
|---|---|
| File:HCG 1 legacy dr10.jpg Hickson Compact Group no.1 with Legacy Surveys DR10 | |
| Observation data (J2000 epoch) | |
| Constellation | Andromeda |
| Right ascension | 00h 23m 01.365s |
| Declination | +25° 26′ 47.793″ |
| Redshift | 0.03397 |
| Distance | 460 M light-years |
| Characteristics | |
| Size | 2'.9 x 2'.9 |
HCG 1 is a Hickson Compact Group of galaxies identified on Palamar Observatory Sky Survey red prints by Paul Hickson in 1982.[1] It is composed of four interacting member galaxies, two of which are peculiar.[2]
Members
| HGC | Name | Type | Mag. | Position J2000.0 | Estimated Distance |
|---|---|---|---|---|---|
| 1a | PGC 1627 | Sbc? peculiar | 15.0 | RA 00 26 07.1, Dec +25 43 31 | 460 Mly |
| 1b | PGC 1625 | S0/a? peculiar | 15.5 | RA 00 26 06.0, Dec +25 43 09 | 460 Mly |
| 1c | PGC 1614 | E1 | 15.9 | RA 00 25 54.4, Dec +25 43 25 | 450 Mly |
| 1d | PGC 1618 | S0 | 17.4 | RA 00 25 58.8, Dec +25 43 31 | 455 Mly |
References
- ↑ Hickson, P. (1982). "Systematic properties of compact groups of galaxies" (in en). The Astrophysical Journal 255: 382. doi:10.1086/159838. ISSN 0004-637X. http://adsabs.harvard.edu/doi/10.1086/159838.
- ↑ 2.0 2.1 "Hickson's Compact Groups (HCG) of Galaxies". https://cseligman.com/text/hickson.htm.
Footnotes
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