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In this image you can see the proximity
of Ikeya-Zhang to the globular cluster M13. The brightest star between
the comet and M13 is Eta Herculis of magnitude 3,5.
See also the shot
with 500mm.
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| Optics | Photographic objective |
| Focal Lenght | 200 mm |
| Focal Ratio | f/7 |
| Exposure Time | 45 min exposure |
| Film | Kodak E200 |
| Developement sensibility | 320 ISO |
| Location | Capanne di Cosola (AL, on the Appenninus, Italy) at 1500m |
| Date and time of exposure start | 14 may 2002, 23.24 UT |
| Mount | Gemini G41 |
| Tracking | ST4 |
| Temperature and humidity | T=+7°C, RH=50% |
| Notes | - |
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