| NGC 2090 | |
|---|---|
 NGC 2090 imaged by theHubble Space Telescope in 2024 | |
| Observation data (J2000epoch) | |
| Constellation | Columba |
| Right ascension | 05h 47m 01.8982s[1] |
| Declination | −34° 15′ 00.806″[2] |
| Redshift | 0.003075[2] |
| Heliocentric radial velocity | 922 ± 1 km/s[2] |
| Distance | 40.1 ± 2.9 Mly (12.3 ± 0.9 Mpc)[1] |
| Apparent magnitude (V) | 11.20[3] |
| Apparent magnitude (B) | 11.99[3] |
| Characteristics | |
| Type | SA:(rs)c[3] |
| Size | ~111,200 ly (34.08 kpc) (estimated)[2] |
| Apparent size (V) | 4.9′ × 2.4′[3] |
| Other designations | |
| ESO 363- G 023,IRAS 05452-3416,MCG -06-13-009,PGC 17819[4] | |
NGC 2090 is aspiral galaxy located in the constellationColumba. Its velocity with respect to thecosmic microwave background is 994 ± 5 km/s, which corresponds to aHubble distance of 47.8 ± 3.4 Mly (14.65 ± 1.03 Mpc).[2] However, 51non-redshift measurements give a distance of 42.46 ± 0.64 Mly (13.018 ± 0.197 Mpc).[5] It was discovered on 29 October 1826 byScottishastronomerJames Dunlop.[6] NGC 2090 was studied to refine theHubble constant to an accuracy within ±10%.[1]
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