| NGC 788 | |
|---|---|
 NGC 788 imaged bylegacy surveys | |
| Observation data (J2000epoch) | |
| Constellation | Cetus |
| Right ascension | 02h 01m 06.4473s[1] |
| Declination | −06° 48′ 55.861″[1] |
| Redshift | 0.013603±0.000093 |
| Heliocentric radial velocity | 4078±28 km/s[1] |
| Distance | 189.4 ± 13.4 Mly (58.08 ± 4.10 Mpc)[1] |
| Group orcluster | NGC 788 Group (LGG 44) |
| Apparent magnitude (V) | 12.76 |
| Characteristics | |
| Type | SA0/a?(s)[1] |
| Size | ~108,400 ly (33.25 kpc) (estimated)[1] |
| Apparent size (V) | 1.6′ × 1.3′[1] |
| Other designations | |
| IRAS F01586-0703,MCG -01-06-025,PGC 7656[1] | |
NGC 788 is a lenticular galaxy located in the constellation Cetus. Its velocity with respect to thecosmic microwave background is 3938 ± 30 km/s, which corresponds to aHubble distance of 189.4 ± 13.4 Mly (58.08 ± 4.10 Mpc).[1] It was discovered in asky survey byWilhelm Herschel on September 10, 1785.[2]
Studies of NGC 788 indicate that it, while itself being classified as aSeyfert 2, contains an obscured Seyfert 1 nucleus, following the detection of a broadHα emission line in the polarized flux spectrum. The observation also indicated the lowest radio luminosities observed in an obscured Seyfert 1.[3]
Onesupernova has been observed in NGC 788: SN 1998dj (type Ia, mag. 16) was discovered by theLick Observatory Supernova Search (LOSS) on 8 August 1998.[4][5]
NGC 788 is the largest and brightest galaxy in agroup of at least five galaxies that bears its name. The other four galaxies in the NGC 788 group (also known asLGG 44) areIC 183,NGC 829,NGC 830 andNGC 842.[6]
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