NGC 5722

NGC 5722
NGC 5722 imaged by SDSS
Observation data (J2000 epoch)
ConstellationBoötes
Right ascension14h 38m 54.4118s[1]
Declination+46° 39′ 56.299″[1]
Redshift0.035862±0.00000884[1]
Heliocentric radial velocity10,751±3 km/s[1]
Distance523.2 ± 36.6 Mly (160.40 ± 11.23 Mpc)[1]
Apparent magnitude (V)15.0g[1]
Characteristics
Size~191,700 ly (58.79 kpc) (estimated)[1]
Apparent size (V)0.76′ × 0.64′[1]
Other designations
2MASX J14385438+4639562, MCG +08-27-014, PGC 52355, CGCG 248-016 NED01[1]

NGC 5722 is a large lenticular galaxy in the constellation of Boötes. Its velocity with respect to the cosmic microwave background is 10,875±9 km/s, which corresponds to a Hubble distance of 523.2 ± 36.6 Mly (160.40 ± 11.23 Mpc).[1] Additionally, one non-redshift measurement gives a slightly farther distance of 531.63 Mly (163.000 Mpc).[2] It was discovered by British astronomer John Herschel on 26 April 1830.[3]

NGC 5722 is a Seyfert II galaxy, i.e. it has a quasar-like nucleus with very high surface brightnesses whose spectra reveal strong, high-ionisation emission lines, but unlike quasars, the host galaxy is clearly detectable.[4][5]

Compact galaxy group

NGC 5722 is a member of a compact galaxy group catalogued as MLCG 1495. The other galaxies in the group are NGC 5721, NGC 5723, and SDSS J143853.22+464152.1.[6][7]

See also

References

  1. ^ a b c d e f g h i j "Results for object NGC 5722". NASA/IPAC Extragalactic Database. NASA and Caltech. Retrieved 8 February 2026.
  2. ^ "Distance Results for NGC 5722". NASA/IPAC EXTRAGALACTIC DATABASE. NASA. Retrieved 8 February 2026.
  3. ^ Seligman, Courtney. "New General Catalogue Objects: NGC 5722". Celestial Atlas. Retrieved 8 February 2026.
  4. ^ Toba, Y.; Oyabu, S.; Matsuhara, H.; Malkan, M. A.; Gandhi, P.; Nakagawa, T.; Isobe, N.; Shirahata, M.; Oi, N.; Ohyama, Y.; Takita, S.; Yamauchi, C.; Yano, K. (2014). "Luminosity and Redshift Dependence of the Covering Factor of Active Galactic Nuclei viewed with WISE and Sloan Digital Sky Survey". The Astrophysical Journal. 788 (1): 45. arXiv:1404.4937. Bibcode:2014ApJ...788...45T. doi:10.1088/0004-637X/788/1/45.
  5. ^ "NGC 5722". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 8 February 2026.
  6. ^ "MLCG 1495". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 8 February 2026.
  7. ^ Sohn, Jubee; Geller, Margaret J.; Hwang, Ho Seong; Zahid, H. Jabran; Lee, Myung Gyoon (2016). "Catalogs of Compact Groups of Galaxies from the Enhanced SDSS DR12". The Astrophysical Journal Supplement Series. 225 (2): 23. arXiv:1603.06583. Bibcode:2016ApJS..225...23S. doi:10.3847/0067-0049/225/2/23.
  • Media related to NGC 5722 at Wikimedia Commons
  • NGC 5722 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images


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