NGC 4448

NGC 4448
Hubble Space Telescope (visible, near-infrared)
Observation data (J2000 epoch)
ConstellationComa Berenices
Right ascension12h 28m 15.428s
Declination+28° 37′ 13.08″
Redshift0.002205
Heliocentric radial velocity661±6 km/s
Distance76.81 ± 0.65 Mly (23.55 ± 0.20 Mpc)
Group or clusterComa I
Apparent magnitude (V)11.2
Characteristics
TypeSB(r)ab
Apparent size (V)3.9′ × 1.4′
Other designations
NGC 4448, UGC 7591, PGC 40988

NGC 4448 is a barred spiral galaxy in the constellation of Coma Berenices. It was discovered April 11, 1785 by German-British astronomer William Herschel. This galaxy has an apparent visual magnitude of 11.2 and spans an angular size of 3.9′ × 1.4′. The core of NGC 4448 can be spotted in a small telescope at an angle of 30′ to the northeast of the star Gamma Comae Berenices. It is located at a distance of 76.8 million light-years (23.55 Mpc) from the Milky Way, where it is a member of the Coma I Group of galaxies.

The morphological classification of this galaxy is SB(r)ab, indicating a barred spiral galaxy (SB) with an inner ring structure (r) and somewhat tightly-wound arms (ab). It is inclined at an angle of about 70° to the plane of the sky and so is being viewed nearly edge on.

References

  1. 1 2 3 4 5 6 Finlay, Warren H. (2014). Concise Catalogue of Deep-Sky Objects. The Patrick Moore Practical Astronomy Series (2nd ed.). Springer Cham. p. 300. doi:10.1007/978-3-319-03170-5. ISBN 978-3-319-03169-9.
  2. 1 2 Skrutskie, Michael F.; et al. (February 2006). "The Two Micron All Sky Survey (2MASS)". The Astronomical Journal. 131 (2): 1163–1183. Bibcode:2006AJ....131.1163S. doi:10.1086/498708. ISSN 0004-6256. S2CID 18913331.
  3. 1 2 3 4 5 "NASA/IPAC Extragalactic Database". Results for NGC 4448. Retrieved 2007-04-01.
  4. 1 2 Tully, R. Brent; et al. (October 2013). "Cosmicflows-2: The Data". The Astronomical Journal. 146 (4): 25. arXiv:1307.7213. Bibcode:2013AJ....146...86T. doi:10.1088/0004-6256/146/4/86. S2CID 118494842. 86.
  5. 1 2 Sandage, A.; Tammann, G. A. (March 1975). "Steps toward the Hubble constant. V - The Hubble constant from nearby galaxies and the regularity of the local velocity field". The Astrophysical Journal. 196: 313–328. Bibcode:1975ApJ...196..313S. doi:10.1086/153413. ISSN 0004-637X.
  6. 1 2 Gregory, Stephen A.; Thompson, Laird A. (April 1977). "The Coma I Galaxy Cloud". The Astrophysical Journal. 213: 345–350. Bibcode:1977ApJ...213..345G. doi:10.1086/155160. ISSN 0004-637X.
  7. ↑ Seligman, C. "NGC Objects: NGC 4400 - 4449". Celestial Atlas. Retrieved 2026-10-25.
  8. ↑ O'Meara, Stephen James (2007). Herschel 400 Observing Guide. Cambridge University Press. p. 173. ISBN 978-0-521-85893-9.