Noun:

ਅਸਥਿਰ ਨੈਬੂਲਾ,

planetary nebula's Usage Examples:

109) is a planetary nebula located in the southern constellation of Chamaeleon.

NGC 2346 is a planetary nebula near the celestial equator in the constellation of Monoceros, less than a degree to the ESE of Delta Monocerotis.

suffix), as true distances are difficult to infer for planetary nebulae.

NGC 6741 is classed as a planetary nebula, though no planets are responsible for this billowy.

The carbon-oxygen core of will go on to become a white dwarf and the remaining envelope will be shed to possibly become a planetary nebula.

post-AGB stars become planetary nebulae once they become hot enough to ionise their ejected outer layers, it is thought that IRAS 08544−4431 is not massive.

NGC 3242 (also known as the Ghost of Jupiter or Caldwell 59) is a planetary nebula located in the constellation Hydra.

NGC 7027 is a very young and dense planetary nebula located around 3,000 light-years (920 parsecs) from Earth in the constellation Cygnus.

It was discovered by William Herschel on April 14, 1789 and misclassified as planetary nebula.

NGC 7662 is a popular planetary nebula for casual observers.

Sun has exhausted its nuclear fuel, its core collapses into a dense white dwarf and the outer layers are expelled as a planetary nebula.

A planetary nebula (PN, plural PNe), is a type of emission nebula consisting of an expanding, glowing shell of ionized gas ejected from red giant stars.

Synonyms:

nebula,

Antonyms:

dependable, invariable,