NGC 5649

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Galaxy
NGC 5648 / NGC 5649
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NGC 5649 with LEDA 1445060 (bottom right), SDSS image
NGC 5649 with LEDA 1445060 (bottom right), SDSS image
AladinLite
Constellation Bear keeper
Position
equinox :  J2000.0 , epoch : J2000.0
Right ascension 14 h 30 m 32.6 s
declination + 14 ° 01 ′ 23 ″
Appearance
Morphological type S?  
Brightness  (visual) 13.3 mag
Brightness  (B-band) 14.1 mag
Angular expansion 1.1 ′ × 0.8 ′
Position angle 172 °
Surface brightness 13.0 mag / arcmin²
Physical data
Affiliation LGG 382  
Redshift 0.017199 ± 0.000004  
Radial velocity (5156 ± 1) km / s  
Stroke distance
v rad  / H 0 		(232 ± 16)  x  10 6  ly
(71.0 ± 5.0)  Mpc 
history
discovery Wilhelm Herschel
Discovery date March 19, 1787
Catalog names
NGC  5649, 5648 • UGC  9330 • PGC  51840 • CGCG  075-059 • MCG  + 02-37-019 • IRAS  14281 + 1414 • KUG  1428 + 142 • GC  3911 • H  III 645 • h  1824 • HOLM 654A • USGC U635 NED02

NGC 5648 = NGC 5649 is a 13.3 mag bright, spiral-shaped radio galaxy of the Hubble type Sbc in the constellation Bear Guardian in the northern sky. It is estimated to be 232 million light-years away from the Milky Way and has a diameter of about 65,000 ly. a. the galaxy NGC 5655 and IC 1014 .

The object was discovered on March 19, 1787 by Wilhelm Herschel with an 18.7-inch reflector telescope, who described it as "eF, vS, lbM, between 2 vF stars, 300 power" (listed as NGC 5649 ). However, Herschel's position specification shows a deviation. Not only because the observation of Guillaume Bigourdan on May 23, 1887 under NGC 5648 led to the second entry in the catalog. Most modern catalogs equate NGC 5648 and NGC 5649 and assign NGC 5655 the number NGC 5649 .

NGC 5649 group ( LGG 382 )

Galaxy Alternative name Distance / million Lj
NGC 5649 PGC 51840 232
NGC 5655 PGC 51857 234
PGC 51735 UGC 9288 237

Web links

  • NGC 5648. SIMBAD, accessed March 20, 2016 .
  • NGC 5649. DSO Browser, accessed March 20, 2016 .

Individual evidence

  1. ↑ a b c d e NASA / IPAC EXTRAGALACTIC DATABASE
  2. ↑ a b c d e f SEDS : NGC 5649
  3. ^ VizieR
  4. ↑ Auke Slotegraaf: NGC 5649. Deep Sky Observer's Companion, accessed on March 20, 2016 (English).
  5. ↑ Auke Slotegraaf: NGC 5648. Deep Sky Observer's Companion, accessed on March 20, 2016 (English).
  6. ↑ Auke Slotegraaf: NGC 5655. Deep Sky Observer's Companion, accessed on March 20, 2016 (English).
  7. ↑ Seligman