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Mirphak is the brightest star of Perseus
constellation, around it there is a large open cluster, nice to observe
with a binocular.
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| Optics | Photographic teleobjective |
| Focal Lenght | 200 mm |
| Focal Ratio | f/5,6 |
| Exposure Time | 30 min exposure |
| Film | Kodak E200 |
| Developement sensibility | 320 ISO |
| Location | Pian dell'Armà (PV, Italian Appennines), at 1400m |
| Date and time of exposure start | 13 october 2001, 21.27 UT |
| Mount | Meade 8" |
| Tracking | ST4 |
| Temperature and humidity | T=+9°C, RH=47% |
| Notes | - |
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