Handbook for the SX remote control Spectrograph Issue 1, 17/8/20
You should now be able to start PHD2 on an imaging cycle (use the ‘Loop’ symbol to start it), and set up the focus on a
guide star. Point your ‘scope at a dense star field with many bright stars to make this job as easy as possible - open clusters
like M44 are good targets. With any luck, you will be able to see several stars when using a 1 or 2 second exposure, and be
able to refine the focus until the stars are sharply defined.
If you have a test target in mind, slew to this object and find a good bright guide star in the field, otherwise find any bright
star to calibrate PHD2. Use the mouse to click on the guide star and then click on the ‘target’ icon in PHD2. A green guide
box and cursor will appear and centre on the star, PHD2 will then run a calibration sequence to determine the optimum
guiding parameters. Once completed, PHD2 will begin to guide on the selected star.
