|
Object |
M57, The
Ring Nebula in Lyra |
|
Coordinates |
RA: 18 53
45 Dec: +33 03 53 PA:
360 |
|
Imaging
by |
Greg
Morgan |
|
Date(s) |
June
29-30, 2008
|
|
Optics |
RCOS
12.5 inch f/9 Ritchey-Chrétien with a
2,857mm focal length |
|
Mount |
Paramount
ME |
|
Camera |
Apogee
Alta U16M, 9 micron 4098 x 4098 pixels |
|
Guiding |
Off-axis
with the Astrodon Monster MOAG and SBIG ST-402XM |
|
Field Scale |
0.64 arcseconds / pixel |
|
FOV |
N is up, E is to the
left. |
|
Chip Temp |
-15 C |
|
Filter(s) |
Astrodon LRGB |
|
Location |
Sierra
Remote Observatories, Shaver Lake California 4,610 feet |
|
Exposure(s) |
L 20
x 900 , R 12 x 900, G 8 x 900, B 12 x 900 seconds (13 Hours
Total) |
|
Binning |
1x1 |
|
Camera control |
MaxIm DL 4 /
CCDAutopilot 3 |
|
Processing
software |
CCDStack, Photoshop CS2 |
|
Image notes |
LRGB only, no
Ha data. Below is the full frame image 0.75 degrees
square. |
