NGC 5248

NGC 5248
NGC 5248 imaged with a 32-inch telescope
Observation data (J2000 epoch)
ConstellationBoötes
Right ascension13h 37m 32.0235s
Declination+08° 53′ 06.907″
Redshift1151 ± 1 km/s
Distance69.1 ± 4.9 Mly (21.19 ± 1.51 Mpc)
Apparent magnitude (V)10.97
Characteristics
TypeSAB(rs)bc
Size~84,600 ly (25.93 kpc) (estimated)
Apparent size (V)6.2′ × 4.5′
Other designations
Caldwell 45, IRAS 13350+0908, UGC 8616, MCG +02-35-015, PGC 48130, CGCG 073-054

NGC 5248 (also known as Caldwell 45) is a compact intermediate spiral galaxy in the constellation Boötes. Its velocity with respect to the cosmic microwave background is 1437 ± 20 km/s, which corresponds to a Hubble distance of 69.1 ± 4.9 Mly (21.19 ± 1.51 Mpc). However, 17 non redshift measurements give a much closer distance of 42.52 ± 3.16 Mly (13.038 ± 0.969 Mpc). It was discovered on 15 April 1784 by German-British astronomer William Herschel.

NGC 5248 is a member of the NGC 5248 Group of galaxies, itself one of the Virgo III Groups strung out to the east of the Virgo Supercluster of galaxies.

See also

References

  1. 1 2 3 4 5 6 7 8 9 10 "NASA/IPAC Extragalactic Database". Results for NGC 5248. Retrieved 2010-11-27.
  2. ↑ "Distance Results for NGC 5248". NASA/IPAC EXTRAGALACTIC DATABASE. NASA. Retrieved 12 November 2024.
  3. ↑ Seligman, Courtney. "New General Catalogue Objects: NGC 5248". Celestial Atlas. Retrieved 12 November 2024.
  4. ↑ "The Virgo III Groups". Atlas of the Universe. Retrieved 2010-11-27.