NGC 6497

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Galaxy
NGC 6497 / NGC 6498
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NGC 6497 [1] SDSS image
NGC 6497 SDSS image
AladinLite
Constellation Dragon
Position
equinoxJ2000.0 , epoch : J2000.0
Right ascension 17 h 51 m 17.971 s
declination + 59 ° 28 ′ 15.18 ″
Appearance
Morphological type SBb  
Brightness  (visual) 13.5 likes
Brightness  (B-band) 14.3 mag
Angular expansion 1.4 ′ × 0.7 ′
Position angle 113 °
Surface brightness 13.3 mag / arcmin²
Physical data
Redshift 0.020554 ± 0.000213  
Radial velocity 6162 ± 64 km / s  
Stroke distance
v rad  / H 0
(284 ± 20)  x  10 6  ly
(87.2 ± 6.2)  Mpc 
history
discovery Lewis Swift
Discovery date September 16, 1884
Catalog names
NGC  6497 • NGC 6498 • UGC  11020 • PGC  60999 • CGCG  300-087 • MCG  + 10-25-109 • IRAS  17506 + 5929 • 2MASX  J17511801 + 5928149 • GALEX ASC J175118.10 + 592814.6 • NSA 148270

NGC 6497 = NGC 6498 is a 13.4 mag bright bar-spiral galaxy of the Hubble type SBb in the constellation of Dragon in the northern sky . It is an estimated 350 million light years from the Milky Way and about 130,000 light years in diameter .
The galaxy NGC 6489 is located in the same area of ​​the sky .

The object was discovered by Lewis A. Swift on September 16, 1884 . Swift noted in this observation "close s of middle * of 3 in a line, middle * the fainter". On the basis of his notes “B * nr; F * v nr. ”In the following observation on September 26, 1884, despite the almost identical position information, the second entry in the catalog was made under NGC 6498 .

Web links

Individual evidence

  1. ^ Aladin Lite
  2. a b c d NASA / IPAC EXTRAGALACTIC DATABASE
  3. a b c d e SEDS : NGC 6497
  4. Seligman
  5. a b Auke Slotegraaf : NGC 6497. Deep Sky Observer's Companion, accessed on August 7, 2016 (English).