| Telescope | MDM 1.3m |
| Date | 4/5/95 |
| Instrument | Nellie |
| Filter | V |
| Exposure Time |
900 sec |
| Other | Out of focus |
Problem:Out of focus image. Note the stellar profiles are elliptical as opposed to round and oriented in the direction of astigmatism as opposed to EW or NS which would likely be caused by bad guiding. |
Fix:Take focus frames, or focus with whatever method is appropriate for that telescope. |
Example of an extremely out of focus image
Radial plot of a stellar profile from this image
Contour plot of a stellar profile from this image
Radial plot of a stellar profile from another image