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by Cleve Callison
Fri Mar 07, 2008 12:59 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: Comet Holmes, California Nebula and cuttlefish (07 Mar 2008)
Replies: 12
Views: 4196

Size of Comet Holmes?

APOD for 7 March, 2008 says "Comet Holmes is about 20 light-seconds in diameter". By my calculations that would make it 3,720,000 miles in diameter; a good-sized object by any standard! What am I missing?

http://apod.nasa.gov/apod/ap080307.html