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NGC 5875

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NGC 5875
The spiral galaxy NGC 5875.
Observation data (J2000 epoch)
ConstellationBoötes
Right ascension15h 09m 13.16s[1]
Declination+52° 31′ 42.4″[1]
Redshift0.011695 [1]
Heliocentric radial velocity3506 ± 2 km/s[1]
Distance172.4 ± 12.1 Mly (52.87 ± 3.70 Mpc)[1]
Apparent magnitude (V)12.4[1]
Characteristics
TypeSAb?[1]
Size~116,800 ly (35.80 kpc) (estimated)[1]
Apparent size (V)2.3' x 1.2'[1]
Other designations
IRAS 15077+5243, 2MASX J15091320+5231418, UGC 9745, MCG +09-25-027, PGC 54095, CGCG 274-027[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]

Two supernovae have been observed in NGC 5875: SN 2022oqm (type Ic-pec, mag 17.3)[4] and SN 2023ldh (type IIn, mag 20.7).[5] SN 2022oqm has been described as one of the brightest CaRTs (Calcium-rich Transients) known.[6]

See also

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References

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  1. ^ a b c d e f g h i j k "NASA/IPAC Extragalactic Database". Results for NGC 5875. Retrieved 7 August 2024.
  2. ^ Celestial Atlas entry for NGC 5875. Retrieved 7 August 2024.
  3. ^ SIMBAD database entry for NGC 5875. Retrieved 7 August 2024.
  4. ^ Transient Name Server entry for SN 2022oqm. Retrieved 7 August 2024.
  5. ^ Transient Name Server entry for SN 2023ldh. Retrieved 7 August 2024.
  6. ^ SN 2022oqm: A Bright and Multi-peaked Calcium-rich Transient. By S. Karthik Yadavalli et al. Retrieved 7 August 2024.
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