The name is strange, but the appearance
to it is very high (see it downunder). Observed with a binocular it wonder
for the lineary aligned stars of about the same brightness. The official
name is Collinder 339 but is also often named Brocchi's cluster.
See also the shot
with 500mm.
|
Technical Data
|
| Optics |
Photographical objective |
| Focal Lenght |
200 mm |
| Focal Ratio |
f/5,6 |
| Exposure Time |
17 min exposure |
| Film |
Kodak E200 |
| Developement sensibility |
320 ISO |
| Location |
Colle del Nivolet (AO,
Italian Alps) at 2600m |
| Date and time of exposure
start |
21 july 2001, 0.43 UT |
| Mount |
Meade 8" |
| Tracking |
ST4 |
| Temperature and humidity |
T=-3°C, RH=90% |
| Notes |
- |
