NGC 6497
| Galaxy NGC 6497 / NGC 6498 |
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|---|---|
![NGC 6497 [1] SDSS image](https://de.wikipedia.org/wiki/Datei:NGC6497_-_SDSS_DR14.jpg)
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| NGC 6497 SDSS image | |
| AladinLite | |
| Constellation | Dragon |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| 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 |
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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 .