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| Optics | TEC 140 |
| Focal Length |
1011 mm |
| Focal Ratio | f/7.2 |
| Exposure Time | Total 2 h 10 min, composed of LRGB 70:20:20:20 min (single exp of 10 min) |
| CCD | SBIG STL-11000M @-30°C |
| Location | Capanne di Cosola (AL, Italian Apennines) at 1500 m height |
| Date |
20 June 2015 |
| Mount | Gemini
G-41 |
| Tracking | Lodestar
on an 80mm f/5 refractor |
| Temperature and humidity | T= +8 °C, RH=95 % |
| Sky brightness at zenith (with SQM-L) | 21.1 mag/arcsec^2 |
| Notes | Many
veils interrupted the imaging session so that only 2 h of total exposure has been gathered. |
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