15 Sagittarii (HIP 89439), a blue supergiant star in Stars

15 Sagittarii (HIP 89439) is a blue supergiant star (O9.7I) in Stars at magnitude 5.29.

Ashland Astronomy Studio October 3, 2026 Star

15 Sagittarii (HIP 89439)

15 Sagittarii is a blue supergiant star in the constellation Stars. It shines at magnitude 5.29.

Sky position: RA 18h 15m, Dec -20° 43.7'

Spectral type: O9.7I

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