Comet Images

Comet C/2007 N3 - Lulin

Several processing of the same data...




This is the second attempt at a composite image.
I used Photoshop to take the Sigma-combined data, and then selected just the cometry data
I then used the clone-stamp tool to remove as much of the star-streaks in the tail as possible



This is the first attempt at a composite image.
I tried to use the Photoshop CS2 'Dust and Scratches' tool to remove the star streaks.
Processing was first to Sigma-combine the subs in MaximDL, which removed alot of the stars
I then applied several runs of Gaussian Blur to remove the stars further, but this left the image very blocky



This image is a Sum combine of all 14 subs using MaximDL.

Date: 2009-02-28
Scope: GSO F/4 8" Newtonian
Camera: SXVF-M25 - Loaned by Stephen Green
Guide Scope: F7 AstroProfessional 102ED
Guide Camera: SX Guidehead
Exposure: 14 x 300 seconds
Shared copyright with Stephen Green

Comet 17P/Holmes

 

Date: 2007-10-29
Telescope: Meade 10" LX200R
Camera: Meade DSI
Images Stacked: 200