... Explanation: What causes unusual knots of gas and dust in planetarynebulas ? ... Nebula , also known as M27 , is a planetarynebula thought similar to what our Sun ...
... light: what created the fast-moving gas clouds that appear around planetarynebula ... to have been ejected from the central star before it cast of the planetarynebula ...
... RA 18:54; Dec 33:02 ( Lyra ) . Distance: 5000 ly . Type: planetarynebula . ... The Ring Nebula is the probably most famous planetarynebula, it is certainly a good example of the class. ...
... Explanation: What causes unusual knots of gas and dust in planetarynebulas ? ... The Helix Nebula is the closest example of a planetarynebula created at the end of the life of a Sun-like star . ...
... reveals The Cat's Eye Nebula to be one of the most complex planetary nebulae known ... The term planetarynebula , used to describe this general class of objects, is ...
... Explanation: This pretty planetarynebula, cataloged as NGC 6369 , was discovered by 18th century astronomer William Herschel ... offers a glimpse of the fate of our Sun, which could produce its own planetarynebula only about 5 billion years from now ...