|
|
|
Optics | TEC 140 |
Focal Length |
1011 mm |
Focal Ratio | f/7.2 |
Exposure Time | Total 4 h 30 min, LRGB 120:50:40:60 min (single exp of 10 min) |
CCD | SBIG STL-11000M @-30°C |
Location | Bogli (PC, Italian Apennines) at 1350 m height |
Date |
7-8 June 2013 (two nights, but the second one only of a few hours due to incoming clouds) |
Mount | Gemini
G-41 |
Tracking | Lodestar
on an 80mm f/5 refractor |
Temperature and humidity | T= +9 °C, RH=90% |
Sky brightness at zenith (with SQM-L) | 21.1 mag/arcsec^2 |
Notes | North at right. |
|