Scope Diagram Astrocamera.Net - Astrophotography by Dave Kodama

Comet 17P/Holmes
11 November 2007

Although sky conditions were quite different (more humidity, less transparent skies, and photographed this time after the comet passed the meridian) it's still interesting to compare Comet 17P/Holmes to the previous shot from a week ago.
This weekend's photo shows an enlarged central coma, though it seems to have lost much of the fluorescent greenish glow. The comet's blue ion tail also detached earlier in the week and can be seen floating to the right of the comet.
Also Available: Ultra-Wide View of Perseus and Comet Holmes

Photo info
  • Date/Time: 11 Nov. 2007 02:03 PST
  • Location: Vanishing Point Observatory
  • Camera: Mitsuboshi 6x9 vacuum astrocamera
  • Media: Kodak Ektachrome E200 (+2 push)
  • Exposure: 3x30 min.
  • Scope: Borg 125EDF2.8 @ f/3.3
  • Filter: None
  • Mount: Losmandy Titan 50
  • Guiding: SBIG STV / Mini Borg 45ED
  • Image Processing: Registar/Photoshop