NGC 5260

NGC 5260
NGC 5260 imaged by Pan-STARRS
Observation data (J2000 epoch)
ConstellationHydra
Right ascension13h 40m 19.8871s
Declination−23° 51′ 28.813″
Redshift0.021688
Heliocentric radial velocity6502 ± 7 km/s
Distance326.6 ± 22.9 Mly (100.13 ± 7.02 Mpc)
Group or clusterRR 254
Apparent magnitude (V)12.8
Characteristics
TypeSB(s)c
Size~248,900 ly (76.32 kpc) (estimated)
Apparent size (V)1.6′ × 1.4′
Other designations
IRAS 13375-2336, 2MASX J13401990-2351291, MCG -04-32-050, PGC 48371, ESO 509- G 092, RR 254a

NGC 5260 is a barred spiral galaxy in the constellation of Hydra. Its velocity with respect to the cosmic microwave background is 6789 ± 21 km/s, which corresponds to a Hubble distance of 100.13 ± 7.02 Mpc (~327 million light-years). It was discovered by American astronomer Lewis Swift on 6 April 1885.

According to the SIMBAD database, NGC 5260 is 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.

NGC 5260 forms a physical pair with galaxy ESO 509-93 [d], collectively named RR 254, with an optical separation of 241″ between them.

Supernovae

Two supernovae have been observed in NGC 5260:

See also

References

  1. 1 2 3 4 5 6 7 8 9 10 11 "Results for object NGC 5260". NASA/IPAC Extragalactic Database. NASA and Caltech. Retrieved 9 August 2024.
  2. ↑ Seligman, Courtney. "Celestial Atlas Entry for NGC 5260". cseligman.com. Retrieved 9 August 2024.
  3. ↑ "NGC 5260". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 16 December 2024.
  4. ↑ Reduzzi, L; Rampazzo, R. (1995). "Candidates for a southern extension of the Karachentsev catalogue of isolated pairs of galaxies". Astrophysical Letters and Communications. 30: 1–229. Bibcode:1995ApL&C..30....1R.
  5. ↑ "SN 2022jkx". Transient Name Server. IAU. Retrieved 16 December 2024.
  6. ↑ "SN 2023dtd". Transient Name Server. IAU. Retrieved 16 December 2024.