HD 156768
From Infogalactic: the planetary knowledge core
| Observation data Epoch J2000 Equinox J2000 |
|
|---|---|
| Constellation | Ara |
| Right ascension | 17h 22m 55.22084s[1] |
| Declination | −58° 00′ 37.1661″[1] |
| Apparent magnitude (V) | 5.86[2] (6.1 + 9.6)[3] |
| Characteristics | |
| Spectral type | G8Ib/II[4] |
| U−B color index | +0.86[5] |
| B−V color index | +1.07[5] |
| Astrometry | |
| Radial velocity (Rv) | −9.8±0.2[2] km/s |
| Proper motion (μ) | RA: −6.52[1] mas/yr Dec.: −14.35[1] mas/yr |
| Parallax (π) | 2.98 ± 0.52[1] mas |
| Distance | approx. 1,100 ly (approx. 340 pc) |
| Details | |
| HD 156768 A | |
| Luminosity | 616[6] L☉ |
| Temperature | 4,798[6] K |
| Rotational velocity (v sin i) | 2.6±1.0[7] km/s |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 156768 is a double star in the southern constellation of Ara. The brighter component is a sixth magnitude bright giant or supergiant star with a stellar classification of G8Ib/II.[4] The magnitude 9.6 companion lies at an angular separation of 1.81″ along a position angle of 184°.[3]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 2.0 2.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 3.0 3.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 4.0 4.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 5.0 5.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 6.0 6.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
External links
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