|
Image Information
|
Object |
NGC 6946 |
|
Coordinates |
RA:
20 34 59.1 Dec: +60 06 07 Camera PA: 359E |
|
Imaging
by |
Greg
Morgan |
|
Date(s) |
July 9 to
18, 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 |
Cropped
to 39' x 29', 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 = 13, R = 5, G = 9, B = 5 x 1800 seconds (16 Hours
Total) |
|
Binning |
1x1 for all
filters |
|
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
|
Deconvolution was done with 25 iterations and 50 iterations
to reach a stellar profile of 1.7 arcseconds for each master
channel in CCDStack.
|
|
