Handbook for the SX remote control Spectrograph Issue 1, 17/8/20
A vertical red rectangle will appear in the centre of the image - this is an approximate representation of the position and size
of the spectrograph slit (assuming that the 1 mm x 20 uM slit is in use). The slit cursor position will probably need adjusting
to match your spectrograph. The nominal setting will be provided on a label under the spectrograph body and can be entered
into the ‘Slit position’ setting for PHD. Any refinements to the size and position can be made once a stellar spectrum is be-
ing observed.
