IC 758
| IC 758 | |
|---|---|
IC 758 imaged by the Hubble Space Telescope | |
| Observation data (J2000 epoch) | |
| Constellation | Ursa Major |
| Right ascension | 12h 04m 11.9363s |
| Declination | +62° 30′ 19.199″ |
| Redshift | 0.004256±0.000006 |
| Heliocentric radial velocity | 1,276±2 km/s |
| Distance | 87.08 ± 11.09 Mly (26.700 ± 3.400 Mpc) |
| Group or cluster | NGC 4036 Group (LGG 266) |
| Apparent magnitude (V) | 14.2 |
| Characteristics | |
| Type | SB(rs)cd: |
| Size | ~50,700 ly (15.53 kpc) (estimated) |
| Apparent size (V) | 1.65′ × 1.15′ |
| Other designations | |
| IRAS F12017+6246, UGC 7056, MCG +11-15-014, PGC 38173, CGCG 315-009 | |
IC 758 is a barred spiral galaxy in the constellation of Ursa Major. Its velocity with respect to the cosmic microwave background is 1,402±9 km/s, which corresponds to a Hubble distance of 67.4 ± 4.7 Mly (20.67 ± 1.45 Mpc). However, two non-redshift measurements give a much farther distance of 87.08 ± 11.09 Mly (26.700 ± 3.400 Mpc). It was discovered by American astronomer Lewis Swift on 17 April 1888.
The SIMBAD database lists IC 758 as an active galactic nucleus candidate, i.e. it has a compact region at the center of a galaxy that emits a significant amount of energy across the electromagnetic spectrum, with characteristics indicating that this luminosity is not produced by the stars.