NGC 6338
| Galaxy NGC 6338 |
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|---|---|
![NGC 6338 with LEDA 3135982 (lo), LEDA 59943 (o), LEDA 2564238 (lu) & LEDA 2564271 (ru) [1] SDSS recording](https://de.wikipedia.org/wiki/Datei:NGC6338_-_SDSS_DR14.jpg)
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| NGC 6338 with LEDA 3135982 (lo), LEDA 59943 (o), LEDA 2564238 (lu) & LEDA 2564271 (ru) SDSS image | |
| AladinLite | |
| Constellation | Dragon |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 17 h 15 m 23.0 s |
| declination | + 57 ° 24 ′ 40 ″ |
| Appearance | |
| Morphological type | cD / S0 / PEG / blazar |
| Brightness (visual) | 12.3 mag |
| Brightness (B-band) | 13.4 mag |
| Angular expansion | 1.5 ′ × 1.0 ′ |
| Position angle | 15 ° |
| Surface brightness | 12.6 mag / arcmin² |
| Physical data | |
| Affiliation | WBL 636 NGC 6338 group |
| Redshift | 0.027303 ± 0.000080 |
| Radial velocity | 8185 ± 24 km / s |
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Stroke distance v rad / H 0 |
(374 ± 26) · 10 6 ly (114.8 ± 8.0) Mpc |
| history | |
| discovery | Wilhelm Herschel |
| Discovery date | April 24, 1789 |
| Catalog names | |
| NGC 6338 • UGC 10784 • PGC 59947 • CGCG 299-066 • MCG + 10-24-116 • 2MASX J17152291 + 5724404 • GC 4291 • H II 812 • GALEX ASC J171523.24 + 572442.2 • LDCE 1248 NED001 | |
NGC 6338 is a 12.5 likes bright lenticular Blazar from Hubble type S0 in the constellation Draco the northern sky . It is an estimated 374 million light years from the Milky Way and about 165,000 light years across.
In the same area of the sky are u. a. the galaxies NGC 6345 , NGC 6346 , IC 4649 , IC 4650 .
The object was discovered on April 24, 1789 by Wilhelm Herschel with an 18.7-inch reflector telescope, who described it as “F, S, R, compare”.