NGC 6542
| Galaxy NGC 6542 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | Dragon |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 17 h 59 m 38.6 s |
| declination | + 61 ° 21 ′ 34 ″ |
| Appearance | |
| Morphological type | S0-a |
| Brightness (visual) | 13.3 mag |
| Brightness (B-band) | 14.2 mag |
| Angular expansion | 1.3 ′ × 0.4 ′ |
| Position angle | 98 ° |
| Surface brightness | 12.5 mag / arcmin² |
| Physical data | |
| Redshift | 0.002232 ± 0.000137 |
| Radial velocity | 669 ± 41 km / s |
|
Stroke distance v rad / H 0 |
(39 ± 3) x 10 6 ly (11.97 ± 1.02) Mpc |
| history | |
| discovery | Lewis Swift |
| Discovery date | July 22, 1886 |
| Catalog names | |
| NGC 6542 • UGC 11092 • PGC 61239 • CGCG 300-103 • 301-009 • MCG + 10-25-126 • IRAS 17591 + 6121 • KUG 1759 + 613 • 2MASX J17593860 + 6121339 • | |
NGC 6542 is a 13.3 likes bright lenticular dwarf galaxy from the Hubble type S0 / a in the constellation Draco the northern sky . It is estimated to be 39 million light years from the Milky Way and about 10,000 light years across.
The object was discovered by Lewis A. Swift on July 22, 1886 .
Web links
- NGC 6542. SIMBAD , accessed September 7, 2016 .
- NGC 6542. DSO Browser, accessed September 7, 2016 .
- Auke Slotegraaf : NGC 6542. Deep Sky Observer's Companion, accessed on September 7, 2016 (English).