White Dwarf Star is a photograph by Mark Garlick/science Photo Library which was uploaded on September 24th, 2018.
White Dwarf Star
White dwarf star. Artwork of an accretion disc (blue/white) around a white dwarf star (pale blue). A white dwarf is the final stage in the evolution... more
Title
White Dwarf Star
Artist
Mark Garlick/science Photo Library
Medium
Photograph
Description
White dwarf star. Artwork of an accretion disc (blue/white) around a white dwarf star (pale blue). A white dwarf is the final stage in the evolution of most stars. A star with a mass less than 1.4 times that of our Sun is thought to form a white dwarf. After it has used all its nuclear fuel, its outer layers escape into space, leaving the dense core behind as a white dwarf. It has the mass of a star compressed into the size of a planet. The strong gravitational field this causes attracts matter from surrounding space, which forms an accretion disc around the rotating star. The disc is heated by friction where it meets the star, causing it to glow brightly.
Uploaded
September 24th, 2018
More from Mark Garlick/science Photo Library
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