NGC 739
| Galaxy NGC 739 |
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|---|---|
![NGC 739 [1] SDSS image](https://de.wikipedia.org/wiki/Datei:NGC739_-_SDSS_DR14.jpg)
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| NGC 739 SDSS image | |
| AladinLite | |
| Constellation | triangle |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 01 h 56 m 54.694 s |
| declination | + 33 ° 16 ′ 00.15 ″ |
| Appearance | |
| Morphological type | S0? |
| Brightness (visual) | 14.1 mag |
| Brightness (B-band) | 15 likes |
| Angular expansion | 0.9 ′ × 0.6 ′ |
| Position angle | 127 ° |
| Surface brightness | 13.3 mag / arcmin² |
| Physical data | |
| Redshift | 0.015104 ± 0.000113 |
| Radial velocity | 4528 ± 34 km / s |
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Stroke distance v rad / H 0 |
(208 ± 15) · 10 6 ly (63.8 ± 4.5) Mpc |
| history | |
| discovery | Ralph Copeland |
| Discovery date | January 9, 1874 |
| Catalog names | |
| NGC 739 • PGC 7312 • CGCG 503-059 • MCG + 05-05-030 • 2MASX J01565464 + 3315596 • GC 5199 • GALEX ASC J015654.76 + 331559.6 • LDCE 129 NED005 | |
NGC 739 is a lenticular galaxy of the Hubble type S0 / a in the constellation Triangle in the northern sky . It is estimated to be 208 million light years from the Milky Way and about 55,000 light years in diameter .
In the same area of the sky are u. a. the galaxies NGC 736 , NGC 738 , NGC 750 , NGC 751 .
The object was discovered on January 9, 1874 by the Scottish astronomer Ralph Copeland .
Web links
- SIMBAD Astronomical Database
- Auke Slotegraaf : NGC 739. Deep Sky Observer's Companion, accessed on February 21, 2016 (English).
- NGC 739. DSO Browser, accessed February 21, 2016 .
- Spectrum .de: Surrounding area ( labeled )