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Optics | TEC 140 |
Focal Length |
1011 mm |
Focal Ratio | f/7.2 |
Exposure Time | Total 50 min, LRGB 20:10:10:10 min (single exp of 10 min) |
CCD | SBIG STL-11000M @-40°C |
Location | Pian dell' Armà (PV, Italian Apennines) at 1350 m height |
Date |
26 January 2014 |
Mount | Gemini
G-41 |
Tracking | Lodestar
on an 80mm f/5 refractor |
Temperature and humidity | T= -1 °C, RH=50% |
Sky brightness at zenith (with SQM-L) | 21.3 mag/arcsec^2 |
Notes | Imaged through deep veils that evolved into clouds and prevented for more exposure |
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