NGC 5988 is a large spiral galaxy in the constellation of Serpens. Its velocity with respect to the cosmic microwave background is 10697 ± 10 km/s, which corresponds to a Hubble distance of 157.78 ± 11.05 Mpc (∼515 million light-years).[1] It was discovered by American astronomer Lewis Swift on 17 April 1887.[2]
| NGC 5988 | |
|---|---|
 The spiral galaxy NGC 5988. | |
| Observation data (J2000 epoch) | |
| Constellation | Serpens |
| Right ascension | 15h 44m 33.8594s[1] |
| Declination | +10° 17′ 35.331″[1] |
| Redshift | 0.035259[1] |
| Heliocentric radial velocity | 10,570 ± 4 km/s[1] |
| Distance | 514.6 ± 36.0 Mly (157.78 ± 11.05 Mpc)[1] |
| Apparent magnitude (V) | 13.8[1] |
| Characteristics | |
| Type | Scd[1] |
| Size | ~298,900 ly (91.63 kpc) (estimated)[1] |
| Apparent size (V) | 1.2' x 1.0'[1] |
| Other designations | |
| IRAS F15421+1026, 2MASX J15443383+1017356, UGC 9998, MCG +02-40-012, PGC 55921, CGCG 078-058[1] | |
NGC 5988 is a LINER galaxy, i.e. it has a type of nucleus that is defined by its spectral line emission which has weakly ionized or neutral atoms, while the spectral line emission from strongly ionized atoms is relatively weak.[3]
One supernova has been observed in NGC 5988: SN 2023hbv (type II, mag 19.3).[4]
See also
References
External links
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