Theta Librae
From Infogalactic: the planetary knowledge core
 Location of θ Librae (circled) |
|
| Observation data Epoch J2000 Equinox J2000 |
|
|---|---|
| Constellation | Libra |
| Right ascension | 15h 53m 49.5381s[1] |
| Declination | –16° 43′ 45.457″[1] |
| Apparent magnitude (V) | 4.136 |
| Characteristics | |
| Spectral type | K0 III[2] |
| U−B color index | +0.82[3] |
| B−V color index | +1.01[3] |
| Astrometry | |
| Radial velocity (Rv) | 3.4[4] km/s |
| Proper motion (μ) | RA: +100.12[1] mas/yr Dec.: +135.27[1] mas/yr |
| Parallax (π) | 20.02 ± 0.88[1] mas |
| Distance | 163 ± 7 ly (50 ± 2 pc) |
| Details | |
| Mass | 1.84[5] M☉ |
| Luminosity | 35[6] L☉ |
| Surface gravity (log g) | 2.99[7] cgs |
| Temperature | 4,700[7] K |
| Metallicity [Fe/H] | –0.08[7] dex |
| Rotational velocity (v sin i) | 10[8] km/s |
| Other designations | |
Theta Librae is a giant star in the southern zodiac constellation of Libra. It is located about 163 light-years (50 parsecs) from the Earth and has an estimated mass about 84% greater than the Sun. This star is radiating about 35[6] times the luminosity of the Sun from its outer atmosphere at an effective temperature of about 4,700 K.[7]
References
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- ↑ 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.
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- ↑ Lua error in package.lua at line 80: module 'strict' not found. See online data.
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- ↑ 7.0 7.1 7.2 7.3 Lua error in package.lua at line 80: module 'strict' not found.
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