Technical Data
|
Optics |
TEC 140
|
Focal Length
|
1011 mm
|
Focal
Ratio |
f/7.2
|
Exposure
Time |
Total 14 h 30 min, composed of Ha 12 h 30 min, RGB 40:40:40 min
(single exp of 30 min for Ha, 10 min for RGB) |
CCD |
SBIG STL-11000M @-30°C
|
Location |
Saint Barthelemy (AO, Italian Alps) at 1660 m height
|
Date
|
26-27 September 2014 (two nights)
|
Mount |
Gemini
G-41
|
Tracking |
Lodestar
on an 80mm f/5 refractor
|
Temperature
and
humidity |
T= from +4 to +10 °C, RH= from 65 to 100%
|
Sky brightness at
zenith (with SQM-L) |
21.1 mag/arcsec^2
|
Notes |
Imaged
during the Saint Barthelemy Star Party 2014; this image won the third
prize in the astrophotograpy contest of the star party!
|