Comet 17P/Holmes Development in November
This composite image shows the development of Comet 17P/Holmes
over a few weeks in November 2007. While the nature of
the film media and digital post-processing preclude serious
measurements, the expansion of the
central dust coma, weakening of the fluorescent gas shell,
and disconnection and disappearance of the blue ion tail
are apparent.
|
|
|
Date/Time:
|
|
11/3, 11/10, 11/17/2007 evenings
|
|
Location:
|
Vanishing Point Observatory (OCA Anza Site)
|
|
Scope:
|
Borg 125EDF2.8 Medium Format Astrograph @ f/3.3
|
|
Mount:
|
Losmandy Titan
|
|
Guider:
|
SBIG STV / Mini Borg 45ED
|
|
Camera:
|
Mitsuboshi 6x9 Vacuum Astrocamera
|
|
Media/Film:
|
Kodak Ektachrome E200 (+2 push)
|
|
Exposure:
|
11/03: 1 x 30 min.
11/10: 2 x 30 min.
11/17: 2 x 30 min.
|
|
