Re: is NGC 6543 actually red?
Posted by DA Morgan on May 13, 2002 at 14:06
(156.74.250.7)Re: is NGC 6543 actually red? (Costas)
That is the color, or reasonably so.
The red color is the color given off by hydrogen in the same way that a neon light has a particular color associated with the neon gas it contains.
You can find an excellent explanation by clicking on the links found here .