Blue Supergiant
Blue supergiants (BSGs) are hot luminous stars, referred to scientifically as OB supergiants. They have luminosity class I and spectral class B9 or earlier.
They are found towards the top left of the Hertzsprung-Russell diagram to the right of the main sequence. They are larger than the sun but smaller than a red supergiant, with surface temperatures of 10,000–50,000 K and luminosities from about 10,000 to a million times the sun.
Read more about Blue Supergiant: Formation, Properties, Examples of A Blue Supergiant Star
Famous quotes containing the word blue:
“There were ghosts that returned to earth to hear his phrases,
As he sat there reading, aloud, the great blue tabulae.
They were those from the wilderness of stars that had expected more.
There were those that returned to hear him read from the poem of life,
Of the pans above the stove, the pots on the table, the tulips among them.
They were those that would have wept to step barefoot into reality....”
—Wallace Stevens (1879–1955)