Epoch J2000.0 Equinox J2000.0
|Right ascension||19h 52m 06.36s|
|Declination||+19° 29' 31.5"|
|Apparent magnitude (V)||+3.51|
Gamma Sagittae (Gamma Sge, γ Sagittae, γ Sge) is the brightest star in constellation Sagitta and is an orange K-type giant with an apparent magnitude of +3.51. It is approximately 274 light years from Earth and radiates at a power 640 times that of Sun. With a mass of 2.5 times that of the Sun, Gamma Sagittae began life 750 million years ago as a white class B9 star.
Gamma Sagittae is moving through the Galaxy at a speed of 42.9 km/s relative to the Sun. It is projected Galactic orbit carries it between 20,300 and 25,900 light years from the center of the Galaxy.
Gamma Sagittae will come closest to the Sun 1.4 million years from now when it will brighten to magnitude 2.44 from a distance of 158 light years.
In Chinese, 左旗 (Zuǒ Qí), meaning Left Flag, refers to an asterism consisting of γ Sagittae, α Sagittae, β Sagittae, δ Sagittae, ζ Sagittae, 13 Sagittae, 11 Sagittae, 14 Sagittae and ρ Aquilae. Consequently, γ Sagittae itself is known as 左旗五 (Zuǒ Qí wǔ, English: the Fifth Star of Left Flag.)