View Full Version : C/2002 T4 Comet Images

Dennis Persyk
February 23rd 04, 07:08 PM
Up until now, I have been imaging relatively bright comets, magnitude
9 and brighter. This comet at magnitude 16.3 was a real challenge!
Whereas I usually see the comet in a 5 second centering image, this
comet remained invisible until I stacked 11 5-minute images. I had to
trust my digital setting circles that the comet was somewhere in the

Image 11 x 5 minutes unguided with 4-inch refractor at f/5.4.

Note how bright magnitude 13.1 nebula IC 381 is in comparison to the

This is not a visual comet!

Image at

Clear skies,

Dennis Persyk
Igloo Observatory Home Page http://dpersyk.home.att.net
Hampshire, IL