| NGC 5112 | |
|---|---|
 NGC 5112 imaged by the Hubble Space Telescope | |
| Observation data (J2000 epoch) | |
| Constellation | Canes Venatici |
| Right ascension | 13h 21m 56.4374s [1] |
| Declination | +38° 44′ 04.462″ [1] |
| Redshift | 0.003249 [1] |
| Heliocentric radial velocity | 974 ± 1 km/s [1] |
| Distance | 60.49 ± 6.52 Mly (18.546 ± 1.999 Mpc) [2] |
| Apparent magnitude (V) | 14.2 [1] |
| Characteristics | |
| Type | SB(rs)cd [1] |
| Size | ~70,400 ly (21.58 kpc) (estimated) [1] |
| Apparent size (V) | 4.0′ × 2.8′ [1] |
| Other designations | |
| IRAS 13196+3859, UGC 8403, MCG +07-28-003, PGC 46671, CGCG 218-005 [1] | |
NGC 5112 is a barred spiral galaxy in the constellation Canes Venatici. It was discovered on 17 March 1787 by German-British astronomer William Herschel. [3] This galaxy is in close physical proximity to the edge-on dwarf spiral NGC 5107.
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On 4 March 2015, a supernova candidate, designated PSN J13215756+3843229, was discovered in NGC 5112 by Robert Gagliano, Dick Post, Jack Newton, and Tim Puckett. Spectral analysis suggested that it was instead a supernova imposter, possibly an outburst from a luminous blue variable. [4] An outburst from this star was observed by GOTO on 4 May 2025, and designated AT 2025jsi. [5]
