Technical Data
|
Optics |
Schmidt
camera 400/300/615 (Zen optics)
|
Focal Lenght |
615 mm
|
Focal Ratio |
f/2,0
|
Exposure Time |
Total 1.5 h, 9 frames of 10 min
each
|
Sensor |
Kaf-6303
|
Filters |
H-alpha 6nm
Astronomik, selected for f/2
|
Chip
temperature
|
-10°C
|
Location |
Tradate
(VA,
in Pianura
Padana, Italy) at 300m height
|
Date and time
of exposure
start |
3 October 2008
|
Mount |
Astrosystems
Fork
|
Tracking |
Webcam
Vesta
Pro B/W on Pentax 75 refractor
|
Temperature
and humidity |
T=+15 °C, RH=60 %
|
Sky brightness at zenith (with SQM-L) | 18.5 - 19.0 mag/arcsec^2 |
Notes |
-
|