The big red nebula visible in many 50mm
photos of Cepheus, is IC 1396. The shape is round and many dark nebulas
are present on the red nebula. This caracteristics make this nebula resemble
Rosette nebula, that is brighter.
|
Technical Data
|
| Optics |
Pentax 75 apochromatic
refractor |
| Focal Lenght |
500 mm |
| Focal Ratio |
f/6,7 |
| Exposure Time |
45 min exposure |
| Film |
Kodak E200 |
| Developement sensibility |
320 ISO |
| Location |
Colle del Nivolet (AO,
on the Apls, Italy) at 2600m |
| Date and time of exposure
start |
4 october 2002, 22.16
UT |
| Mount |
Gemini G41 |
| Tracking |
ST4 |
| Temperature and humidity |
T=+0°C, RH=98% |
| Notes |
- |
