NGC 57
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| NGC 57 | |
|---|---|
 NGC 57 imaged by SDSS | |
| Observation data (J2000 epoch) | |
| Constellation | Pisces[1] |
| Right ascension | 00h 15m 30.9132s[2] |
| Declination | +17° 19′ 42.307″[2] |
| Redshift | 0.018146[2] |
| Heliocentric radial velocity | 5,440 ± 22 km/s[2] |
| Distance | 243 Mly[3] |
| Apparent magnitude (V) | 11.8[1] |
| Apparent magnitude (B) | 12.8[1] |
| Characteristics | |
| Type | E[2] |
| Apparent size (V) | 2.2′ × 1.9′[2] |
| Other designations | |
| UGC 145, MCG +03-01-031, PGC 1037, CGCG 456-046[2] | |
NGC 57 is an elliptical galaxy in the constellation Pisces.[1] It was discovered by German-British astronomer William Herschel on 8 October 1784.[4]
Supernovae
[edit | edit source]Two supernovae have been observed in NGC 57:
- SN 2010dq (Type Ia, mag. 17.3) was discovered by Kōichi Itagaki on 3 June 2010. It was 17" west and 1" south of the center of NGC 57 at coordinates 00h 15m 29.70s, +17° 19′ 41.0″.[5][6]
- SN 2011fp (Type Ia, mag. 17.9) was discovered by Kōichi Itagaki on 29 August 2011.[7][8]
See also
[edit | edit source]
References
[edit | edit source]- ^ a b c d Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ a b c d e f g Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ An object's distance from Earth can be determined using Hubble's law: v=Ho is Hubble's constant (70±5 (km/s)/Mpc). The relative uncertainty Δd/d divided by the distance is equal to the sum of the relative uncertainties of the velocity and v=Ho
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
External links
[edit | edit source]
Wikimedia Commons has media related to [[commons:Lua error in Module:WikidataIB at line 506: attempt to index field 'wikibase' (a nil value).|Lua error in Module:WikidataIB at line 506: attempt to index field 'wikibase' (a nil value).]].
- NGC 57 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
- Discovery image of SN 2010dq[permanent dead link] (2010-06-03) / Wikisky DSS2 zoom-in of same region
