two months ago I started (!) to use the Sony SEL200600G with a Sony Alpha 6000 and optionally the 2x teleconverter SEL20TC for astrophotography.
For the bright objects of our solar system (Sun (with sun filter!), Moon, Venus, Jupiter, Saturn) a simple tripod and the Sony remote shutter release (alternatively time shutter release) is sufficient. Only the focusing is difficult due to the somewhat shaky construction.
For light fainter deep sky objects, stars, etc. I bought an astronomical mount three weeks ago, because with a camera at rest the exposure time is limited to