Astronomy:NGC 5988
| NGC 5988 | |
|---|---|
 NGC 5988 imaged by SDSS | |
| Observation data (J2000 epoch) | |
| Constellation | Serpens |
| Right ascension | 15h 44m 33.8559s[1] |
| Declination | +10° 17′ 35.33″[1] |
| Redshift | 0.035259[1] |
| Helio 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′ × 1.0′[1] |
| Other designations | |
| IRAS F15421+1026, UGC 9998, MCG+02-40-012, PGC 55921[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
- ↑ 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 "Results for object NGC 5988". NASA and Caltech. https://ned.ipac.caltech.edu/byname?objname=NGC+5988.
- ↑ "Distance Results for NGC 5988". NASA. https://ned.ipac.caltech.edu/cgi-bin/nDistance?name=NGC+5988.
- ↑ Seligman, Courtney. "New General Catalogue Objects: NGC 5988". https://cseligman.com/text/atlas/ngc59a.htm#5988.
- ↑ "NGC 5988". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NGC+5988.
- ↑ "SN 2023hbv". IAU. https://www.wis-tns.org/object/2023hbv.
External links
- NGC 5988 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
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