Astronomy:NGC 5875
From HandWiki
| NGC 5875 | |
|---|---|
 NGC 5875 imaged by Sloan Digital Sky Survey | |
| Observation data (J2000 epoch) | |
| Constellation | Boötes |
| Right ascension | 15h 09m 13.1946s[1] |
| Declination | +52° 31′ 42.472″[1] |
| Redshift | 0.011695 [1] |
| Helio radial velocity | 3506 ± 2 km/s[1] |
| Distance | 172.4 ± 12.1 Mly (52.87 ± 3.70 Mpc)[1] |
| Apparent magnitude (V) | 12.4[1] |
| Characteristics | |
| Type | SAb?[1] |
| Size | ~116,800 ly (35.80 kpc) (estimated)[1] |
| Apparent size (V) | 2.3′ × 1.2′[1] |
| Other designations | |
| IRAS 15077+5243, UGC 9745, MCG+09-25-027, PGC 54095[1] | |
NGC 5875 is a spiral galaxy in the constellation of Boötes. Its velocity with respect to the cosmic microwave background is 3585 ± 6 km/s, which corresponds to a Hubble distance of 52.87 ± 3.70 Mpc (~173 million light-years).[1] It was discovered by German-British astronomer William Herschel on 1 May 1788.[2]
The SIMBAD database lists NGC 5875 as a Seyfert II Galaxy, i.e. it has a quasar-like nuclei with very high surface brightnesses whose spectra reveal strong, high-ionisation emission lines, but unlike quasars, the host galaxy is clearly detectable.[3]
Supernovae
Two supernovae have been observed in NGC 5875:
- SN 2022oqm (Type Ic-pec, mag. 17.3) was discovered by the Zwicky Transient Facility on 11 July 2022.[4] This supernova has been described as one of the brightest calcium-rich supernovae known.[5]
- SN 2023ldh (Type IIn, mag. 20.7423) was discovered by the Zwicky Transient Facility on 28 May 2023.[6]
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 5875". NASA and Caltech. https://ned.ipac.caltech.edu/byname?objname=NGC+5875.
- ↑ Seligman, Courtney. "New General Catalogue Objects: NGC 5875". https://cseligman.com/text/atlas/ngc58a.htm#5875.
- ↑ "NGC 5875". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NGC+5875.
- ↑ "SN 2022oqm". IAU. https://www.wis-tns.org/object/2022oqm.
- ↑ Yadavalli, S. Karthik et al. (2024). "SN 2022oqm: A Bright and Multipeaked Calcium-rich Transient". The Astrophysical Journal 972 (2): 194. doi:10.3847/1538-4357/ad5a7c. Bibcode: 2024ApJ...972..194Y.
- ↑ "SN 2023ldh". IAU. https://www.wis-tns.org/object/2023ldh.
External links
- NGC 5875 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
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