|
Image Information
|
Object |
NGC 4631 |
|
Coordinates |
RA:
12 42 09.0Dec: +32 37 07 Camera PA: 19.1 |
|
Imaging
by |
Greg
Morgan |
|
Date(s) |
April 7 &
8, 2010 |
|
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 |
34' x 25', N is
up, E is to the left. |
|
Chip Temp |
-25 C |
|
Filter(s) |
Astrodon LRGB |
|
Location |
Sierra
Remote Observatories, Shaver Lake California 4,610 feet |
|
Exposure(s) |
L = 14, R = 4, G = 3, B = 5
x 1800 seconds (13 Hours
Total) |
|
Binning |
1x1 |
|
Software |
CCDAutopilot 4,
MaxIm
DL,
TheSky 6, CCDStack
with
CCDIS-p
registration, Photoshop CS4,
Russell
Croman's 64-bit GradientXTerminator, 64-bit plug-in for Neat
Image Pro. |
|
Image notes |
The seeing quality at
the site was
excellent. Shown here is the sub-arc second seeing
data for the evening of the 7th and the 8th.
|
|
