NGC 788
Galaxy in the constellation Cetus
From Wikipedia, the free encyclopedia
NGC 788 is a lenticular galaxy located in the constellation Cetus. Its velocity with respect to the cosmic microwave background is 3938 ± 30 km/s, which corresponds to a Hubble distance of 189.4 ± 13.4 Mly (58.08 ± 4.10 Mpc).[1] It was discovered in a sky survey by Wilhelm Herschel on September 10, 1785.[2]
| NGC 788 | |
|---|---|
NGC 788 imaged by legacy surveys | |
| Observation data (J2000 epoch) | |
| 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 or cluster | 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] | |
Studies of NGC 788 indicate that it, while itself being classified as a Seyfert 2, contains an obscured Seyfert 1 nucleus, following the detection of a broad Hα emission line in the polarized flux spectrum. The observation also indicated the lowest radio luminosities observed in an obscured Seyfert 1.[3]
Supernova
One supernova has been observed in NGC 788: SN 1998dj (type Ia, mag. 16) was discovered by the Lick Observatory Supernova Search (LOSS) on 8 August 1998.[4][5]
NGC 788 Group
Image gallery
Center of NGC 788 imaged by the Hubble Space Telescope
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