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Planetary nebula


NGC 6326, a planetary nebula with glowing wisps of outpouring gas that are lit up by a ... core emits ultraviolet radiation to ionize the ejected outer layers of the star. .... After a star passes t...

Planetary Nebulae and White Dwarfs - e-Education Institute


Given our observations of planetary nebulae (described in more detail below) ... The core of the star is no longer undergoing nuclear fusion of any variety, so it is  ...

Stars - Main Sequence - aspire


There are essentially two sections of a star: the core (where fusion occurs), and an outer gaseous ... What happens to a star after the main sequence phase?

Stellar Evolution


What happens to the Earth when the Sun starts to "die"? What is the ..... All that is left of the star after the Planetary Nebula stage is the hot little core. What is the ...

What is a Planetary Nebula? | Planetary Nebula Definition


Sep 21, 2012 ... Planetary nebulae are the cloudy remnants of smaller stars that have ... The small core, a newly formed white dwarf, will illuminate those layers in a ... dust spread almost evenly after they were shucked off of their parent star.

The Life Cycle of Stars - Hesston College


What happens to a star after the red-giant phase is not certain. Physics ... Low mass stars, or sun-like stars will go the planetary nebula route (Col). Because of the ... The core never reaches the ignition temperature of carbon burning. The core ...

StarChild: Stars - Nasa


These clouds are called nebulae, and it is in a nebula where stars are born. In the ... As it glows, hydrogen is converted into helium in the core by nuclear fusion. ... This ring is called a planetary nebula. ... The core of a massive star that is 1.5 to 4 times as massive as our Sun ends up as a neutron star after the supernova.

Page 1 @ Helium-burning supergiant: Helium fusion begins when ...


What happens to a low-mass star after it exhausts its core helium? ... after a planetary nebula occurs? because one day the Sun will blow up as a supernova. 9.

Stars and Nebulae - SkyServer - Sloan Digital Sky Survey


In the core of the star, the temperature and densities are high enough to sustain .... The evolution from main sequence to red giant occurs at different times for different stars. ... At this point, what happens next depends on the mass of the star . ... layers into beautiful planetary nebulae, and leaving the core as a hot white dwarf.

Stellar Evolution: White Dwarfs


For stars less than 8 solar masses, a strong stellar wind develops and the outer layers of the ... In the center of the planetary nebula is the remnant core. ... After a billion years the typical white dwarf is down to 0.001 the luminosity of the Sun.

Popular Q&A
Q: What happens to the core of a star after a planetary nebula occur...
A: A is more or less the correct answer. The star does not have to be very low mass though. (Below 8 solar mass is enough) C is what happens next. Read More »
Source: answers.yahoo.com
Q: What happens to the core of a star after a planetary nebula occur...
A: It contracts from a protostar to a main-sequence star. B) It breaks apart in a violent explosion. C) It becomes a white dwarf. D) It becomes a neutron star. E) ... Read More »
Source: www.physics.sfasu.edu
Q: What happens to the core of a star after a planetary nebula occur...
A: It becomes a white dwarf. Read More »
Source: wiki.answers.com
Helpful Resources

What happens to the core of a star after a planetary nebula occurs


No, the term planetary nebula is very misleading and it has nothing to do with planets. A Planetary Nebula forms when stars up to 8 times the mass of our sun ...

Stage 8: Planetary Nebula or Supernova - Astronomy Notes


Feb 17, 2015 ... For the common low-mass stars (those with masses of 0.08 to about 6 or 7 ... The ultraviolet from the hot exposed core, called a white dwarf, causes the gases to fluoresce. ... Planetary nebulae can be distinguished from H II regions by their ... This happens in about the first 15 minutes of the supernova.