NGC 5248

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NGC 5248
N5248s.jpg
NGC 5248 imaged with a 32-inch telescope
Observation data (J2000 epoch)
Constellation Boötes
Right ascension 13h 37m 32.0235s [1]
Declination +08° 53 06.907 [1]
Redshift 1151 ± 1 km/s [1]
Distance 69.1 ± 4.9  Mly (21.19 ± 1.51  Mpc) [1]
Apparent magnitude  (V)10.97 [1]
Characteristics
Type SAB(rs)bc [1]
Size~84,600  ly (25.93  kpc) (estimated) [1]
Apparent size  (V)6.2 × 4.5 [1]
Other designations
Caldwell  45, IRAS 13350+0908, UGC 8616, MCG +02-35-015, PGC 48130, CGCG 073-054 [1]

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 ). [1] However, 17 non redshift measurements give a much closer distance of 42.52 ± 3.16 Mly (13.038 ± 0.969 Mpc). [2] It was discovered on 15 April 1784 by German-British astronomer William Herschel. [3]

Contents

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. [4]

See also

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<span class="mw-page-title-main">NGC 4330</span> Galaxy in the constellation Virgo

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<span class="mw-page-title-main">NGC 3914</span> Galaxy in the constellation Virgo

NGC 3914 is a barred spiral galaxy in the constellation of Virgo. Its velocity with respect to the cosmic microwave background is 6466 ± 25 km/s, which corresponds to a Hubble distance of 95.38 ± 6.69 Mpc. However, six non-redshift measurements give a distance of 81.2 ± 2.8 Mpc. The galaxy was discovered by German-British astronomer William Herschel on 13 April 1784.

<span class="mw-page-title-main">NGC 1385</span> Galaxy in the constellation Fornax

NGC 1385 is a barred spiral galaxy in the constellation of Fornax. Its velocity with respect to the cosmic microwave background is 1381 ± 9 km/s, which corresponds to a Hubble distance of 20.37 ± 1.43 Mpc. In addition, 30 non redshift measurements give a distance of 15.999 ± 12.131 Mpc. The galaxy was discovered by German-British astronomer William Herschel on 17 November 1784.

<span class="mw-page-title-main">NGC 5162</span> Galaxy in the constellation Virgo

NGC 5162 is a very large spiral galaxy in the constellation of Virgo. Its velocity with respect to the cosmic microwave background is 7125 ± 20 km/s, which corresponds to a Hubble distance of 342.8 ± 24.0 Mly (105.09 ± 7.36 Mpc). In addition, 11 non redshift measurements give a distance of 303.71 ± 12.41 Mly (93.118 ± 3.806 Mpc). The galaxy was discovered by German-British astronomer William Herschel on 15 March 1784. It was also observed by Lewis Swift on 19 April 1887, resulting in the galaxy being included twice in the New General Catalogue, as both NGC 5162 and NGC 5174.

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.