NGC 738
| Galaxy NGC 738 |
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|---|---|
![NGC 738 & NGC 736 (m) [1] SDSS image](https://de.wikipedia.org/wiki/Datei:NGC736_-_NGC738_-_SDSS_DR14.png)
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| NGC 738 & NGC 736 (m) SDSS image | |
| AladinLite | |
| Constellation | triangle |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 01 h 56 m 45.7 s |
| declination | + 33 ° 03 ′ 30 ″ |
| Appearance | |
| Morphological type | S0 |
| Brightness (visual) | 15.0 mag |
| Brightness (B-band) | 16.0 mag |
| Angular expansion | 0.4 ′ × 0.2 ′ |
| Position angle | 155 ° |
| Surface brightness | 12.1 mag / arcmin² |
| Physical data | |
| Affiliation | WBL 60 |
| Redshift | 0.014607 ± 0.000093 |
| Radial velocity | 4379 ± 28 km / s |
|
Stroke distance v rad / H 0 |
(201 ± 14) · 10 6 ly (61.7 ± 4.3) Mpc |
| history | |
| discovery | Bindon Blood Stoney |
| Discovery date | October 11, 1850 |
| Catalog names | |
| NGC 738 • PGC 7303 • CGCG 503-057 • 2MASX J01564566 + 3303300 • GC 446 • GALEX ASC J015645.77 + 330330.5 | |
NGC 738 is a compact galaxy of Hubble type C in the constellation triangle at the northern sky . It is an estimated 201 million light years from the Milky Way and about 25,000 light years across .
In the same area of the sky are u. a. the galaxies NGC 736 , NGC 739 , NGC 740 , NGC 751 .
The object was discovered on October 11, 1850 by Bindon Blood Stoney , an assistant to William Parsons .
Web links
- SIMBAD Astronomical Database
- Auke Slotegraaf: NGC 738. Deep Sky Observer's Companion, accessed on February 21, 2016 .
- NGC 738. DSO Browser, accessed February 21, 2016 .