description IC 4663 Overview
IC 4663 is a planetary nebula in the constellation Scorpius, formed from material expelled by a star near the end of its evolution. Its central star has a hydrogen-deficient spectrum dominated by helium, a composition that has attracted attention in studies of planetary-nebula nuclei and stellar evolution. The surrounding ionized gas emits light after being energized by ultraviolet radiation from the hot remnant star.
help IC 4663 FAQ
What kind of object is IC 4663?
IC 4663 is a planetary nebula in the constellation Scorpius. It formed from material expelled by a star near the end of its evolution.
Why is the central star of IC 4663 unusual?
Its spectrum is hydrogen-deficient and dominated by helium. That unusual composition has made IC 4663 relevant to studies of planetary-nebula central stars.
Is IC 4663 a planet?
No. Despite the name planetary nebula, IC 4663 is a glowing shell of gas around an evolved star, not a planet or planetary system.
What creates the visible nebula around IC 4663?
The visible nebula consists of material expelled by the central star during its late evolution. The exposed stellar remnant then illuminates that surrounding gas.
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