Skip Navigation: Avoid going through Home page links and jump straight to content

Griffin Images of Comet Hale-Bopp


ampo232_s.jpg41K ampo233_s.jpg70K ampo234_s.jpg70K
Observer: Ian Griffin
Location: Astronaut Memorial Planetarium & Observatory, Cocoa, Florida
Date: September 29, 1997 09:50 UT

1. 8 separate 30 second images and 30 separate 45 second images of Hale Bopp have been flat fielded and combined to create this image. The image was obtained using a 12 inch Maksutov with 1524mm focal length and no filter. Image is 31.1 by 20.7 arc minutes. This is an integrated white light image. First image started at 05:50 EST with the last image started at 06:20. Stars look trailed in this composite image, since it was effectively guided on the comet's motion.

2. The above image was obtained by applying a mathematical image processing algorithm to the original picture at the top of the page. The image has been processed using a rotational gradient filter, with rotation parameter 10 degrees and amplification factr 5.0

3. The image has been processed using an unsharp mask, with mask sigma set to 5.0.

Ian Griffin

comethome.gif Comet Hale-Bopp Home Page