NGC 5681
Galaxy in the constellation Boötes
From Wikipedia, the free encyclopedia
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).[1] However, two non-redshift measurements give a closer distance of 331.21 ± 89.53 Mly (101.550 ± 27.450 Mpc).[2] It was discovered by German astronomer Heinrich d'Arrest on 1 May 1865.[3]
Right ascension14h 35m 42.9043s[1]
Declination+08° 18′ 02.313″[1]
| NGC 5681 | |
|---|---|
NGC 5681 imaged by SDSS | |
| Observation data (J2000 epoch) | |
| Constellation | Boötes |
| Right ascension | 14h 35m 42.9043s[1] |
| Declination | +08° 18′ 02.313″[1] |
| Redshift | 0.026488±0.000009[1] |
| Heliocentric radial velocity | 7,941±3 km/s[1] |
| Distance | 331.21 ± 89.53 Mly (101.550 ± 27.450 Mpc)[1] |
| Apparent magnitude (V) | 14.3[1] |
| Characteristics | |
| Type | SA:(rs)bc[1] |
| Size | ~109,700 ly (33.63 kpc) (estimated)[1] |
| Apparent size (V) | 0.9′ × 0.6′[1] |
| Other designations | |
| IRAS 14332+0831, UGC 9393, MCG +02-37-025, PGC 52169, CGCG 075-083 NED02[1] | |
NGC 5681 is a radio galaxy, i.e. it has giant regions of radio emission extending well beyond its visible structure.[4]
Supernova
One supernova has been observed in NGC 5681:
- SN 2006dt (Type Ia, mag. 16.8) was discovered by the Lick Observatory Supernova Search (LOSS) on 20 July 2006.[5][6]