NGC 5988

NGC 5988
The spiral galaxy NGC 5988
Observation data (J2000 epoch)
ConstellationSerpens
Right ascension15h 44m 33.8559s[1]
Declination+10° 17′ 35.33″[1]
Redshift0.035259[1]
Heliocentric radial velocity10,570 ± 4 km/s[1]
Distance514.6 ± 36.0 Mly (157.78 ± 11.05 Mpc)[1]
Apparent magnitude (V)13.8[1]
Characteristics
TypeScd[1]
Size~298,900 ly (91.63 kpc) (estimated)[1]
Apparent size (V)1.2′ × 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 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 514.6 ± 36.0 Mly (157.78 ± 11.05 Mpc).[1] However, one non-redshift measurement gives a much larger distance of 668.62 Mly (205.000 Mpc).[2] It was discovered by American astronomer Lewis Swift on 17 April 1887.[3]

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.[4]

One supernova has been observed in NGC 5988: SN 2023hbv (type II, mag 19.278) was discovered by ATLAS on 29 April 2023.[5]

See also

References

  1. ^ a b c d e f g h i j k "Results for object NGC 5988". NASA/IPAC Extragalactic Database. NASA and Caltech. Retrieved 3 August 2024.
  2. ^ "Distance Results for NGC 5988". NASA/IPAC EXTRAGALACTIC DATABASE. NASA. Retrieved 14 December 2024.
  3. ^ Seligman, Courtney. "New General Catalogue Objects: NGC 5988". Celestial Atlas. Retrieved 14 December 2024.
  4. ^ "NGC 5988". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 15 December 2024.
  5. ^ "SN 2023hbv". Transient Name Server. IAU. Retrieved 15 December 2024.