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Hubble Space Telescope Observes NGC 5307

mm by Lisa Durant
August 27, 2019
1 min read
0
Hubble Space Telescope Observes NGC 5307

NGC 5307 is located 10,551 light-years from Earth in the southern hemisphere constellation of Centaurus.

Also known as ESO 221-11 or Hen 2-98, this planetary nebula was discovered by the English astronomer John Herschel on April 15, 1836.

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“Planetary nebulae like NGC 5307 are the final stage of a Sun-like star,” Hubble astronomers said.

“As such, these objects allow us a glimpse into the future of our own Solar System.”

“A star like our Sun will, at the end of its life, transform into a red giant.”

Stars are sustained by the nuclear fusion that occurs in their core, which creates energy.

This process constantly tries to rip the star apart. Only the gravity of the star prevents this from happening.

“At the end of the red giant phase of a star, these forces become unbalanced,” the researchers explained.

“Without enough energy created by fusion, the core of the star collapses in on itself, while the surface layers are ejected outward.”

“After that, all that remains of the star is what we see here: glowing outer layers surrounding a white dwarf star, the remnants of the red giant star’s core.”

“This isn’t the end of this star’s evolution though — those outer layers are still moving and cooling.”

“In just a few thousand years they will have dissipated, and all that will be left to see is the dimly glowing white dwarf.”

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Lisa Durant

With a Science degree from a reputed college, Lisa has been one of the oldest contributors for Scoop Hawk in the Science niche. She has been through the ups and downs of journalism and understands the sheer meaning of optimum quality.

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