| NGC 7808 | |
| Constellation Name: | Cetus |
| Epoch: | J2000 |
| Type: | (R')SA0^0?[1] |
| Dist Ly: | NaNMpc |
| Z: | 0.029570 |
| H Radial V: | 8865 ± 2 km/s |
| Appmag V: | 12.8 |
| Size V: | 1.3' x 1.3' |
| Size: | ~48.71kpc (estimated) |
NGC 7808 is an lenticular galaxy in the constellation of Cetus. Its velocity with respect to the cosmic microwave background is 8521 ± 24 km/s, which corresponds to a Hubble distance of 125.67 ± 8.80 Mpc (∼410 million light-years). It was discovered by American astronomer Frank Muller in 1886.[2]
NGC 7808 is an active Seyfert 1 galaxy.[3]
One supernova has been observed in NGC 7808: SN 2023qnz (type Ia, mag 20.1).[4]
NGC 7808 contains an outer star-forming ring, observed in ultraviolet rays. According to a 2019 study, the star formation is only above one solar mass per year. It is expected to decrease overtime. Nevertheless, star-forming rings like in NGC 7808 still contain enigmatic features and can help astronomers to learn more about the evolutionary processes taken by these galaxies.[5]