Click on above image for hires.
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| Optics | Schmidt
camera 400/300/615 (Zen optics) |
| Focal Lenght | 615 mm |
| Focal Ratio | f/2,0 |
| Exposure Time | Total 3h50min (23x10 min) |
| Sensor | Kaf-6303 |
| Filters | H-alpha 6nm
Astronomik, selected for f/2 |
| Chip
temperature |
-30°C |
| Location | Tradate
(VA,
in Pianura
Padana, Italy) at 300m height |
| Date and time of exposure start | 2 nights, 17 and 18 February 2009 |
| Mount | Astrosystems
Fork |
| Tracking | Webcam
Vesta
Pro B/W on Pentax 75 refractor |
| Temperature and humidity | T=0 °C, RH=80 % |
| Sky brightness at zenith (with SQM-L) | 18.5 - 19.0 mag/arcsec^2 |
| Notes | - |
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| Optics | Pentax 75 |
| Focal Lenght | 500mm |
| Focal Ratio | f/6.7 |
| Exposure Time | 3h20min (20x10 min) |
| CCD | Canon EOS 5D
with baader filter |
| Location | Cosola (PC, Italian Appennines) at 1150 m height |
| Date |
21 February 2009 |
| Mount | Gemini G-41 |
| Tracking | ST4 on a 80mm
f/5 refractor |
| Temperature and humidity | T=-3 °C,
RH=50% |
| Sky brightness at zenith (with SQM-L) | 21.2 mag/arcsec^2 |
| Notes | - |
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