... Also known as Abell 21, this Medusa is an old planetarynebula some 1,500 light-years away in the constellation Gemini . ... The planetarynebula phase represents a final stage in the evolution of low mass stars like the sun , as they transform ...
... Also known as Abell 21, this Medusa is an old planetarynebula some 1,500 light-years away along the southern border of the ... The planetarynebula phase represents a final stage in the evolution of low mass stars like the sun , as they transform ...
... Also known as Abell 21, this Medusa is an old planetarynebula some 1,500 light-years away in the constellation Gemini . ... The planetarynebula phase represents a final stage in the evolution of low mass stars like the sun , as they transform ...
... Also known as Abell 21, this Medusa is an old planetarynebula some 1,500 light-years away in the constellation Gemini . ... The planetarynebula phase represents a final stage in the evolution of low mass stars like the sun , as they transform ...
... Explanation: Haunting patterns within planetarynebula NGC 6543 readily suggest its popular moniker -- the Cat's Eye nebula. ... see the fate of our sun , destined to enter its own planetarynebula phase of evolution ... in about 5 billion years ...