
To some it looks like a cat's eye. To others, perhaps like a giant cosmic
conch shell. It is actually one of brightest and most highly detailed
planetary nebula known, composed of gas expelled in the brief yet glorious phase near the end of life of a Sun-like star.
This nebula's dying central star may have produced the outer circular
concentric shells by
shrugging off
outer layers in a series of regular convulsions. The
formation of the beautiful, complex-yet-symmetric inner structures, however, is
not well understood. The
featured image is a composite of a digitally sharpened
Hubble Space Telescope image with
X-ray light
captured by the orbiting
Chandra Observatory. The exquisite floating space statue spans over half a
light-year across. Of course,
gazing into this Cat's Eye, humanity may well be seeing the fate of our sun, destined to enter its own
planetary nebula phase of evolution ... in about 5 billion years. via NASA
Снимка на деня за May 01, 2019 от NASA
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