Introduction - Orion - Milky Way Centre - M80 Globular Cluster Star Colours Colour Variation in the Stars of Orion In the image, a selection of bright stars with a range of colors and parts of some faintly glowing nebulae can be seen. Point to the links below to indicate some of the details. Name Type Spectral Class Luminosity Distance Betelgeuse Red Giant M2Ib 9,400 suns 427 ly Bellatrix Blue Giant B2III 1,020 suns 243 ly Mintaka Blue Giant O9.5II 8,300 suns 920 ly Alnilam Blue Supergiant B01a 30,000 suns 1,340 ly Alnitak Blue Giant O9.51b 10,500 suns 820 ly Lambda Orionis Nebula A shell of gas ejected from the Lambda Orionis region, just above the top edge of the image. Barnard's Loop A vast shell of gas ejected from the M42 star formation region, just beyond the bottom edge of the image. For more information about the constellation, click here: The Orion Constellation.

Long exposure on Kodak color film. View image at High Resolution 984 x 1,488 pixels, 720 KB Photo credit: T. Credner © [Link to source] Label art work by John Lakic