G Scorpii
| Observation data Epoch J2000 Equinox J2000 |
|
|---|---|
| Constellation | Scorpius |
| Right ascension | 17h 49m 51.48081s[1] |
| Declination | −37° 02′ 35.8975″[1] |
| Apparent magnitude (V) | 3.21[2] |
| Characteristics | |
| Spectral type | K2 III[3] |
| U−B color index | +1.19[2] |
| B−V color index | +1.17[2] |
| Astrometry | |
| Radial velocity (Rv) | +24.7[4] km/s |
| Proper motion (μ) | RA: 40.59[1] mas/yr Dec.: 27.24[1] mas/yr |
| Parallax (π) | 25.92 ± 0.15[1] mas |
| Distance | 125.8 ± 0.7 ly (38.6 ± 0.2 pc) |
| Details | |
| Mass | 1.44 ± 0.21[5] M☉ |
| Radius | 16[6] R☉ |
| Luminosity | 95 ± 6[5] L☉ |
| Temperature | 4,538[5] K |
| Other designations | |
G Scorpii (G Sco) is a star in the constellation Scorpius. It is an orange K-type giant with an apparent magnitude of +3.19. It is approximately 126 light years from Earth.[1] The measured angular diameter of the primary star is 3.94 ± 0.21 mas.[7] At the estimated distance of this system, this yields a physical size of about 16 times the radius of the Sun.[6]
Just 8.5 arcminutes to the east is the globular cluster NGC 6441.
It was formerly known as "Gamma Telescopii" (γ Tel) and "Fuyue" （傅說） in ancient China.
See also
References
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