NGC 788
NGC 788 | |
---|---|
Observation data (J2000 epoch) | |
Constellation | Cetus |
Right ascension | 02h 01m 06.46s |
Declination | −06° 48′ 57.15″ |
Redshift | 0.013603±0.000093 |
Heliocentric radial velocity | 4078±28 km/s[1] |
Apparent magnitude (V) | 12.76 |
Characteristics | |
Type | S0 |
Other designations | |
PGC 7656 |
NGC 788 is a lenticular galaxy located in the constellation Cetus.[2] It was discovered in a sky survey by Wilhelm Herschel on September 10, 1785. 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]
One supernova has been observed in NGC 788: SN 1998dj (type Ia, mag. 16).[4]
References
[edit]- ^ "Detailed Information for a Named Object: NGC 788". Retrieved January 23, 2022.
- ^ "NGC 788". Retrieved January 23, 2022.
- ^ "A Hidden Broad-Line Region in the Weak Seyfert 2 Galaxy NGC 788" (PDF). Archived from the original (PDF) on September 7, 2021. Retrieved January 23, 2022.
- ^ Transient Name Server entry for SN 1998dj. Retrieved 30 March 2023.