| NOTES |
DATE:
|
Friday,
November 30, 2007
|
TIME:
|
10:01
- 11:32 pm EST
|
CAMERA:
|
Canon
EOS 300D Digital Rebel (unmodified) |
EXPOSURE:
|
45
minutes (15 × 3 minutes @ ISO 400)
|
LOCATION:
|
Owl
Observatory - Kalamazoo Nature Center |
INSTRUMENT:
|
Tele Vue Pronto 70 mm refractor (with Focal Reducer/Field
Flattener) piggybacked on 12" LX200 |
PROCESSING:
|
Images obtained with DSLRFocus 3. Registered, aligned, stacked, and dark frame subtracted with Deep Sky
Stacker. Further processing done with
Adobe Photoshop 7.0 and Noise Ninja 2. |
COMMENTS:
|
Comet
Holmes has evolved considerably since I was able to last photograph it
on October 30, 2007 (thanks to Michigan weather). It is now about
1º in angular size - twice the diameter of the Full Moon!
Solar wind has disturbed the once symmetrical coma - giving the comet
more of a classic shape. The nucleus is also not as apparent as
it once was. It's still visible in the image above, but difficult
to spot amongst the rich star field of Perseus. The open cluster
NGC 1245 is visible to the left of Holmes.
|
