| NOTES |
DATE:
|
Saturday,
September 2, 2007
|
TIME:
|
11:53
pm - 12:32 am EDT
|
CAMERA:
|
Canon
EOS 300D Digital Rebel (unmodified)
|
EXPOSURE:
|
9
minutes (11 × 50 seconds @ ISO 800) |
| LOCATION: |
Owl
Observatory - Kalamazoo
Nature Center |
INSTRUMENT:
|
Meade
12" LX200 SCT @ f/6.3 with Lumicon Giant Easy Guider |
PROCESSING:
|
Images obtained with DSLRFocus 3.
Dark frame subtracted, aligned, stacked with DeepSkyStacker.
Further
enhancments with
Adobe Photoshop 7.0 |
COMMENTS:
|
M71 is
located approximately 13,000 light-years away in the small
constellation Sagitta. It's the only Messier Object located in
this constellation. M71 was long classified as a rich open
cluster, but we now know it is indeed a globular cluster. This
small, sprase globlar only has a mass of 13,200 suns. It may seem
like a lot, but it's quite anemic compared to its relatives. This
image was taken
during a Waning Gibbous Moon (71% illumination). I processed it a
little hard to bring out the details of the cluster, so it's a tad
noisy.
|
