NGC 7300
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Right ascension22h 30m 59.9137s[1]
Declination−14° 00′ 12.631″[1]
| NGC 7300 | |
|---|---|
 NGC 7300 imaged by Legacy Surveys | |
| Observation data (J2000 epoch) | |
| Constellation | Aquarius |
| Right ascension | 22h 30m 59.9137s[1] |
| Declination | −14° 00′ 12.631″[1] |
| Redshift | 0.016368±0.0000140[1] |
| Heliocentric radial velocity | 4,907±4 km/s[1] |
| Distance | 181.89 ± 10.31 Mly (55.767 ± 3.162 Mpc)[1] |
| Group or cluster | NGC 7300 group (LGG 458) |
| Apparent magnitude (V) | 13.6[1] |
| Characteristics | |
| Type | SAB(rs)b[1] |
| Size | ~118,100 ly (36.20 kpc) (estimated)[1] |
| Apparent size (V) | 2.0′ × 1.0′[1] |
| Other designations | |
| IRAS F22283-1415, 2MASS J22305979-1400103, IC 5204, MCG -02-57-011, PGC 69040[1] | |
NGC 7300 is an intermediate spiral galaxy in the constellation of Aquarius. Its velocity with respect to the cosmic microwave background is 4,566±24 km/s, which corresponds to a Hubble distance of 219.7 ± 15.4 Mly (67.35 ± 4.73 Mpc).[1] However, 15 non-redshift measurements give a closer mean distance of 181.89 ± 10.31 Mly (55.767 ± 3.162 Mpc).[2] It was discovered by British astronomer John Herschel on 26 July 1830.[3]
NGC 7300 is the namesake of a small group of galaxies. The other galaxies in the NGC 7300 group (also known as LGG 458) are NGC 7251, NGC 7298, MCG -03-57-001, and MCG -03-57-008.[4][5]
Supernovae
Two supernovae have been observed in NGC 7300:
- SN 1996ca (Type Ia, mag. 16.5) was discovered by Masakatsu Aoki on 15 December 1996.[6][7]
- SN 2015au (Type IIb, mag. 17.7) was discovered by Greg Bock as part of the Backyard Observatory Supernova Search (BOSS) on 10 November 2015.[8][9]
