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Astronomical Cosmological Extraterrestrial
White Dwarves Remnant Star Cores
White dwarfs, which are
comprised primarily of carbon, are the remnant cores of stars that have
completed core fusion.
After evolving from an initial mass of 3-4+ solar masses
and passing from a hydrogen helium starcore burning stage to a first phase red
giant stage to another hydrogen helium starcore burning stage to a second red
giant stage, the star shakes off the boundaries of its extended envelope,
bursting forth, a sparkling stellar butterfly emerging from its cocoon and
unfolding its wings.
White Dwarves Butterfly Cocoon Remnant Starcores
Image Courtesy of H. Bond (STScI), R. Ciardullo, (PSU), WFPC2, HST, NASA
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Like a flower quickening in
the fertile aerated soil of the earth until it suddenly erupts into full blossom
from its seed to a welcoming resonance of nature sounds, the star becomes a
radiant spherical shell surrounding a solidly burning planetary-nebula starcore
with a 0.5-1.0 solar mass which eventually cools to form a white dwarf. Sirius,
the brightest star in the night sky, has a white dwarf companion.
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Cosmological Extraterrestrial Copyright © 2002-2008 Maureen Grace Burns, Blessings Cornucopia. All Rights Reserved.
Public Domain Image White Dwarves Butterfly Cocoon Remnant Starcores Courtesy of H. Bond (STScI), R. Ciardullo, (PSU), WFPC2, HST, NASA, [http://antwrp.gsfc.nasa.gov/apod/ap010805.html]. Accessed January 28, 2007.
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