| Telescope | MDM 1.3m |
| Date | 4/19/97 |
| Instrument | Tifcam |
| Filter | H |
| Exposure Time |
2 sec |
| Other | Bright star in the IR |
Problem:This was just a 2 sec exposure of a bright star taken in the IR H-band. These loops showed up with every bright star regardless of its position on the chip. A good part of the light was lost in this loop structure surrounding the star. |
Fix:This star was surely saturated. Fainter stars did not exhibit this sort of loop structure. The loops are a consequence of light scattering in the multitude of optical elements in this setup. Note that earthquakes can sometimes produce images similar to this one. |