| NGC 5875 | |
| Constellation Name: | Boötes |
| Epoch: | J2000 |
| Type: | SAb?[1] |
| Dist Ly: | NaNMpc |
| Z: | 0.011695 |
| H Radial V: | 3506 ± 2 km/s |
| Appmag V: | 12.4 |
| Size V: | 2.3' x 1.2' |
| Size: | ~35.8kpc (estimated) |
NGC 5875 is an spiral galaxy in the constellation of Boötes. Its velocity with respect to the cosmic microwave background is 3585 ± 6 km/s, which corresponds to a Hubble distance of 52.87 ± 3.70 Mpc (∼173 million light-years). It was discovered by German-British astronomer William Herschel on 1 May 1788.[2]
The SIMBAD database lists NGC 5875 as a Seyfert II Galaxy, i.e. it has a quasar-like nuclei with very high surface brightnesses whose spectra reveal strong, high-ionisation emission lines, but unlike quasars, the host galaxy is clearly detectable.[3]
Two supernovae have been observed in NGC 5875: SN 2022oqm (type Ic-pec, mag 17.3)[4] and SN 2023ldh (type IIn, mag 20.7).[5] SN 2022oqm has been described as one of the brightest CaRTs (Calcium-rich Transients) known.[6]