|
Technical Data
|
| Optics |
Newton 200 mm
(homemade by L. Comolli, F. Riccio and P. Battaglia)
|
| Focal Lenght |
1260 mm
|
| Focal Ratio |
f/6
|
| Corrector |
Baader MPCC
|
| Exposure Time |
1h30m (single
exp of 10 min)
|
| CCD |
Canon EOS 5D
with baader filter
|
| Sensitivity |
800 ISO
|
| Location |
Colle del
Nivolet (AO,
Italian Alps) at 2530 m height
|
Date
|
1 and 2 July
2011
|
| 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) |
21.5 mag/arcsec^2 |
| Notes |
Very good
sky, transparent and clear, but bad seeing. I got guiding problems, so
the total exposure is limited.
|
