Technical Data - H-ALPHA (crop of the central part of the mosaic)
|
| Optics |
Schmidt
camera 400/300/615 (Zen optics)
|
| Focal Lenght |
615 mm
|
| Focal Ratio |
f/2,0
|
| Exposure Time |
Total 29
hours. Mosaic of 6 frames plus the central region. 348 frames of 5 min
each.
|
| CCD |
A camera with Kaf-6303e |
| Sensor |
Kaf-6303e class 1
|
| Filters |
H-alpha 6nm
Astronomik, selected for f/2
|
Chip temperature
|
-30 °C and
-20 °C
|
| Location |
Tradate
(VA,
in Pianura
Padana, Italy) at 300m height
|
| Date and time
of exposure
start |
9 full
nights: 23, 28, 29 june and 4, 5, 6, 7, 17, 18 july 2007 |
| Mount |
Astrosystems
Fork
|
| Tracking |
Webcam
Vesta
Pro B/W on a 120mm f/13 refractor
|
| Temperature
and humidity |
T=between 13
and 25 °C, RH=between 40 and 70%
|
| Sky brightness at zenith (with SQM-L) | 18.5 - 19.0 mag/arcsec^2 |
| Notes |
The first
attempt to compose a mosaic with the Schmidt camera
|
