Delta Sagittarii
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Delta Sagittarii (δ Sgr / δ Sagittarii) is a star system in the constellation Sagittarius. It also has the traditional names Kaus Media, Kaus Meridionalis, and Media. Kaus Media is 306 light years from Earth and radiates with a total luminosity of 1180 times that of the Sun. The radius of Delta Sgr is 62 times solar while its mass is about 5 times the solar mass.
Kaus Media has an apparent magnitude of +2.72 and belongs to the spectral type K3. It has three dim companions:
- Delta Sagittarii B, a 14th magnitude star at a separation of 26 arcseconds,
- Delta Sagittarii C, a 15th magnitude star at a separation of 40 arcseconds, and
- Delta Sagittarii D, a 13th magnitude star at a separation of 58 arcseconds from the primary.
In the Hindu system of Astrology, this star is also called "Purvashada Nakshatra".
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