I am preparing my observatory (1 Scope) and would like to use SGP.
What minimum features should the PC that I use with SGP have to have?
Surprisingly little. I have a core i5 NUC, like many others, and it sits in a sandwich box in the observatory for the last 5 years. Connect through Wi-Fi to home network and use Remote Desktop software. More important is to use high quality cables and hubs and make sure all lethal voltages are away from dew/rain/condensation.