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| Optics | L: Schmidt
camera 400/300/615 (Zen optics) RGB: Pentax 75 |
| Focal Lenght | L: 615 mm RGB: 500mm |
| Focal Ratio | L: f/2,0 RGB: f/6.7 |
| Exposure Time | L: 50 min (10 x 5 min) RGB: 2h10m (13x10min) |
| CCD | L: a camera with Kaf-6303e RGB: Canon EOS 350D unmodified |
| Sensor | L: Kaf-6303e class 1 RGB: Canon cmos |
| Filters | L: Astronomik H-alfa 6nm RGB: none |
| Chip
temperature |
L: -20°C RGB: without cooling |
| Location | L: Tradate
(VA,
in Pianura
Padana, Italy) at 300m height RGB: Colle dell'Agnello (CN, Italian Alps) at 2670m heinght |
| Date and time of exposure start | L: 21 september 2007 RGB:8 september 2007 |
| Mount | L:
Astrosystems Fork RGB: Gemini G41 |
| Tracking | L: Webcam
Vesta
Pro B/W on a 120mm f/13 refractor RGB: ST4 on a 80mm f/5 refractor |
| Temperature and humidity | L: T=+15°C, RH=70% RGB: T=+4°C, RH=60% |
| Notes | First test to merge H-alpha data from the Schmidt camera, with RGB from Canon EOS 350D (unmodified, not sensitive to red) |
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