NGC 7729
| Galaxy NGC 7729 |
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|---|---|
![NGC 7729 with LEDA 214973 (top left), [1] SDSS image](https://de.wikipedia.org/wiki/Datei:NGC7729_-_SDSS_DR14.jpg)
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| NGC 7729 with LEDA 214973 (top left), SDSS image | |
| AladinLite | |
| Constellation | Pegasus |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 23 h 40 m 33.6 s |
| declination | + 29 ° 11 ′ 17 ″ |
| Appearance | |
| Morphological type | Sat |
| Brightness (visual) | 13.5 likes |
| Brightness (B-band) | 14.4 mag |
| Angular expansion | 1.8 'x 0.6' |
| Position angle | 7 ° |
| Surface brightness | 13.4 mag / arcmin² |
| Physical data | |
| Redshift | 0.017515 ± 0.000033 |
| Radial velocity | 5251 ± 10 km / s |
|
Stroke distance v rad / H 0 |
(243 ± 17) x 10 6 ly (74.5 ± 5.2) Mpc |
| history | |
| discovery | Édouard Stephan |
| Discovery date | October 5, 1883 |
| Catalog names | |
| NGC 7729 • UGC 12730 • PGC 72083 • CGCG 497-047 • MCG + 05-55-046 • IRAS F23380 + 2854 • 2MASX J23403364 + 2911172 • GALEX ASC J234033.66 + 291116.5 | |
NGC 7729 is a barred spiral galaxy of the Hubble type SBa in the constellation Pegasus in the northern sky . It is estimated to be 243 million light years from the Milky Way and about 125,000 light years in diameter.
The object was discovered by Édouard Stephan on October 5, 1883 .