Guiding




Telescope MDM 1.3m
Date 3/11/96
Instrument Nellie
Filter V
Exposure
Time
900
sec

Problem:

Terrible guiding causes the drawn out appearance of these stars. The profile is elliptical and the major axis lies along the x-axis of the chip. Bad guiding usually causes objects to be elongated along either the x or y axis depending on whether the guider is having trouble guiding in DEC or RA.

Fix:

Fiddle with guider parameters.

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Radial profile of a star from this image

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