|
Object |
Elliptical Galaxy (NGC147),
in Cassiopeia |
|
Telescope (Photo) |
Celestron 11" EdgeHD SCT OTA with Optec/Lepus f/6.2 focal
reducer on Losmandy G-11 Mount |
|
Telescope (Guiding) |
Orion EON 80mm ED Refractor @ f/12.5 (f/6.25 w/2x Powermate) on
Losmandy G11 Mount |
|
Camera (Photo) |
SBIG ST8300M monochrome CCD |
|
Camera (Guiding) |
Meade DSI Pro III w/
PHD Guiding |
|
Exposure Detail |
LRGB combination:
Luminance: excluded-average combination of
20 images ( binned 1x1) at 180 seconds
Red: excluded-average combination of
20 images (binned 2x2) at 90 seconds
Green: excluded-average combination of
20 images (binned 2x2) at 90 seconds
Blue: excluded-average combination of
20 images (binned 2x2) at 90 seconds
RAW file conversion, full
calibration (flat, dark, bias, flat-dark), and initial image processing
using ImagesPlus 3.83; final image processing using Photoshop
CS3 |
|
Location |
Cincinnati Astronomical Society's Dark-Sky Site (Adams County,
Ohio) (N38.876, W83.464) |
|
Date |
10/09/10 |