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Image of the Linear C/1999 S4 using a teleobjective
and tracking on the stars. It swoh what was visible visually in a 11x80
binocular. The small image show an animation where the images are 15 minutes
apart and show the fast movement of the comet.
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| Optics | Photographical objective |
| Focal Lenght | 200 mm |
| Focal Ratio | f/5,6 |
| Exposure Time | 15 min exposure |
| Film | Kodak PJ-400 |
| Developement sensibility | 400 ISO |
| Location | San Martino (VA, on the Italian Prealps) at 1083m |
| Date and time of exposure start | 8 july 2000, 0.21 UT |
| Mount | Meade 8" |
| Tracking | Manual on the stars |
| Notes | - |
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