11 Sagittae is a star in the constellation Sagitta. It is a blue giant with a spectral classification of B9III and has evolved off the main sequence. The star will enter the Hertzsprung gap soon.[citation needed]
Observation data Epoch J2000.0 Equinox J2000.0 | |
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Constellation | Sagitta |
Right ascension | 19h 57m 45.44547s[1] |
Declination | +16° 47′ 20.9781″[1] |
Apparent magnitude (V) | 5.53[2] |
Characteristics | |
Spectral type | B9III[3] |
Astrometry | |
Radial velocity (Rv) | −26.10±1.6[4] km/s |
Proper motion (μ) | RA: 11.609[1] mas/yr Dec.: 18.605[1] mas/yr |
Parallax (π) | 7.5596 ± 0.0600 mas[1] |
Distance | 431 ± 3 ly (132 ± 1 pc) |
Details | |
Mass | 2.47[2] M☉ |
Radius | 4.02[2] R☉ |
Luminosity | 127[2] L☉ |
Surface gravity (log g) | 3.62[2] cgs |
Temperature | 9,661[2] K |
Metallicity [Fe/H] | 0.0[5] dex |
Rotational velocity (v sin i) | 34[6] km/s |
Age | 242[5] Myr |
Other designations | |
Database references | |
SIMBAD | data |
It is in the Chinese asterism 左旗 (Zuǒ Qí), or Left Flag which consists of 11 Sagittae, γ Sagittae, α Sagittae, β Sagittae, δ Sagittae, ζ Sagittae, 13 Sagittae, 14 Sagittae and ρ Aquilae. Consequently, the Chinese name for γ Sagittae itself is 左旗七 (Zuǒ Qí qī, English: the Seventh Star of Left Flag).[citation needed]
Constellation of Sagitta | |||||||||||||
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Stars |
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Nebulae |
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