|
Object |
Sharpless
2-155, Caldwell 9, The Cave Nebula |
|
Imaging
by |
Greg
Morgan |
|
Date(s) |
August 17
to 20, 2007 (4 nights) |
|
Optics |
RCOS
12.5 inch f/9 Ritchey-Chrétien with a
2,857mm focal length |
|
Mount |
Paramount
ME |
|
Camera |
SBIG STL-11000XM |
|
Guiding |
Internal
selfguiding with dithering |
|
Field Scale |
0.64 arcseconds / pixel |
|
FOV |
43' x 30' arcminute FOV |
|
Chip Temp |
-15 C |
|
Filter(s) |
Astrodon True
Balance LRGB I-series 50mm |
|
Location |
Sierra
Remote Observatories, Shaver Lake California 4,610 feet |
|
Exposure(s) |
LRGB =
18 x
1200, 18 x 1200, 18 x 1200, 15 x 1200 seconds (23 hours total) |
|
Binning |
All channels at
1x1 |
|
Camera control |
MaxIm DL 4 /
CCDAutopilot 3 |
|
Processing
software |
CCDStack, Photoshop CS2 |
|
Image notes |
This is first light with the 12.5" RCOS scope.
CCDAutopilot 3 was used for the first time to automatically
close the roof at the end of the observing run for this
image. Thanks again to those who have loaned me
hardware and given me advise on how to make this image possible! |