NGC 5716
Galaxy in the constellation Libra
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NGC 5716 is a barred spiral galaxy in the constellation of Libra. Its velocity with respect to the cosmic microwave background is 4,384±16 km/s, which corresponds to a Hubble distance of 210.9 ± 14.8 Mly (64.66 ± 4.53 Mpc).[1] However, three non-redshift measurements give a much closer mean distance of 129.70 ± 1.43 Mly (39.767 ± 0.437 Mpc).[2] It was discovered by German-British astronomer William Herschel on 7 May 1787.[3][4]
| NGC 5716 | |
|---|---|
NGC 5716 imaged by Legacy Surveys | |
| Observation data (J2000 epoch) | |
| Constellation | Libra |
| Right ascension | 14h 41m 05.5473s[1] |
| Declination | −17° 28′ 37.177″[1] |
| Redshift | 0.013860±0.0000100[1] |
| Heliocentric radial velocity | 4,155±3 km/s[1] |
| Distance | 129.70 ± 1.43 Mly (39.767 ± 0.437 Mpc)[1] |
| Apparent magnitude (V) | 13.25[1] |
| Characteristics | |
| Type | SB(rs)c[1] |
| Size | ~75,300 ly (23.08 kpc) (estimated)[1] |
| Apparent size (V) | 1.8′ × 1.3′[1] |
| Other designations | |
| IRAS 14383-1715, 2MASX J14410551-1728369, MCG -03-37-004, PGC 52458[1] | |
NGC 5716 has a possible active galactic nucleus, 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.[5][6]