| NGC 7808 | |
|---|---|
 NGC 7808 imaged bySDSS | |
| Observation data (J2000epoch) | |
| Constellation | Cetus |
| Right ascension | 00h 03m 32.1264s[1] |
| Declination | −10° 44′ 40.833″[1] |
| Redshift | 0.029570[1] |
| Heliocentric radial velocity | 8865 ± 2 km/s[1] |
| Distance | 409.9 ± 28.7 Mly (125.67 ± 8.80 Mpc)[1] |
| Apparent magnitude (V) | 12.8[1] |
| Characteristics | |
| Type | (R')SA0^0?[1] |
| Size | ~158,900 ly (48.71 kpc) (estimated)[1] |
| Apparent size (V) | 1.3′ × 1.3′[1] |
| Other designations | |
| IRAS F00009-1101,2MASX J00033214-1044403,MCG -02-01-013,PGC 243[1] | |
NGC 7808 is alenticular galaxy in theconstellation ofCetus. Its velocity with respect to thecosmic microwave background is 8521 ± 24 km/s, which corresponds to aHubble distance of 125.67 ± 8.80Mpc (~410 millionlight-years).[1] It was discovered by American astronomerFrank Muller in 1886.[2]
NGC 7808 is an activeSeyfert I galaxy.[1][3]
Onesupernova has been observed in NGC 7808:SN 2023qnz (Type Ia, mag. 20.14) was discovered byPan-STARRS on 22 August 2023.[4]
NGC 7808 contains an outerstar-forming ring, observed inultraviolet rays. According to a 2019 study, the star formation is only above onesolar mass per year. It is expected to decrease over time. Nevertheless, star-forming rings like in NGC 7808 still contain enigmatic features and can helpastronomers to learn more about the evolutionary processes taken by these galaxies.[5]
Media related toNGC 7808 at Wikimedia Commons
