NGC 789
| Galaxy NGC 789 |
|
|---|---|
|
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| SDSS recording | |
| AladinLite | |
| Constellation | triangle |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 02 h 02 m 26.0 s |
| declination | + 32 ° 04 ′ 20 ″ |
| Appearance | |
| Morphological type | S? |
| Brightness (visual) | 13.6 mag |
| Brightness (B-band) | 14.2 mag |
| Angular expansion | 1.2 ′ × 0.8 ′ |
| Position angle | 3 ° |
| Surface brightness | 13.4 mag / arcmin² |
| Physical data | |
| Affiliation | NGC 777 group LGG 42 |
| Redshift | 0.017569 ± 0.000027 |
| Radial velocity | 5267 ± 8 km / s |
|
Stroke distance v rad / H 0 |
(241 ± 17) x 10 6 ly (73.8 ± 5.2) Mpc |
| history | |
| discovery | Heinrich Louis d'Arrest |
| Discovery date | August 24, 1865 |
| Catalog names | |
| NGC 789 • UGC 1520 • PGC 7760 • CGCG 503-077 • MCG + 05-05-047 • IRAS 01595 + 3149 • KUG 0159 + 318 • 2MASX J02022599 + 3204199 • GC 5210 • GALEX ASC J020226.01 + 320418.6 • LDCE 129 NED016 • KIG 82 | |
NGC 789 is a galaxy of Hubble type S? in the constellation Triangle in the northern sky . It is estimated to be 241 million light years away from the Milky Way and has a diameter of about 70,000 ly.
In the same area of the sky are the galaxies NGC 777 , NGC 783 , NGC 785 , NGC 798 , among others .
The object was discovered on August 24, 1865 by the German-Danish astronomer Heinrich Louis d'Arrest .
Web links
Commons : NGC 789 - collection of images, videos, and audio files
- SIMBAD Astronomical Database
- Auke Slotegraaf: NGC 789. Deep Sky Observer's Companion, accessed on March 20, 2016 (English).
- NGC 789. DSO Browser, accessed March 20, 2016 .
Individual evidence