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physical object > naked eye object > naked eye star > Rigel
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Rigel comparison table
Subject has right ascension has declination has spectral type is part of has surface temperature is an instance of has V magnitude has color has been observ has B-V magnitude has distance has absorption line is usually part of is a kind of has apparent magnitude has synonym has definition has luminosity class
B star  O, B, A, and early F 11000 to 28000 K  blue-white   He I early star  Blue-white star of spectral type B whose spectra are characterized by absorption lines of neutral helium which reach their maximum intensity at B2. The Balmer lines of hydrogen are strong, and lines of singly ionized oxygen and other gases are also present. 
blue supergiant    greater than 1000 Kelvin        supergiant  A supergiant star with spectral type O or B. All blue supergiants are hot and young. Rigel, in the constellation Orion, is the best example.I
naked eye star   Milky Waygreater than 1000 Kelvin   for many centuries   asterismnaked eye objectbrighter than 5 A star visible without visual aids 
Rigel05 14 32.2-08 12 06B8 IaeMilky Way11000 to 28000 Knaked eye star0.12blue-whitefor many centuries-0.03900 light-yearsHe Iasterism brighter than 5HR 1713A blue supergiant. It is a multiple star. The seventh brightest star in the night sky.I

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