NGC 5681
| NGC 5681 | |
|---|---|
NGC 5681 imaged by SDSS | |
| Observation data (J2000 epoch) | |
| Constellation | Boötes |
| Right ascension | 14h 35m 42.9043s |
| Declination | +08° 18′ 02.313″ |
| Redshift | 0.026488±0.000009 |
| Heliocentric radial velocity | 7,941±3 km/s |
| Distance | 331.21 ± 89.53 Mly (101.550 ± 27.450 Mpc) |
| Apparent magnitude (V) | 14.3 |
| Characteristics | |
| Type | SA:(rs)bc |
| Size | ~109,700 ly (33.63 kpc) (estimated) |
| Apparent size (V) | 0.9′ × 0.6′ |
| Other designations | |
| IRAS 14332+0831, UGC 9393, MCG +02-37-025, PGC 52169, CGCG 075-083 NED02 | |
NGC 5681 is a spiral galaxy in the constellation of Boötes. Its velocity with respect to the cosmic microwave background is 8,164±16 km/s, which corresponds to a Hubble distance of 392.7 ± 27.5 Mly (120.41 ± 8.43 Mpc). However, two non-redshift measurements give a closer distance of 331.21 ± 89.53 Mly (101.550 ± 27.450 Mpc). It was discovered by German astronomer Heinrich d'Arrest on 1 May 1865.
NGC 5681 is a radio galaxy, i.e. it has giant regions of radio emission extending well beyond its visible structure.