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Closest O type stars
Reading the book of F.D. Seward and P.A. Charles, “Exploring the X-ray Universe”, I found out some really massive and luminous O type stars that are close by and can be pointed out easily at the night sky: star distance (kpc) magnitude (V) spectral type ζ Pup 0.44 2.3 O4If δ Ori 0.5 2.2 O9.5II […]
