IMHO, the 6SE is a good telescope and well-suited for use by a beginner. Not the best choice for astrophotography although some do surprisingly good photos with similar.
For astrophotography you'll likely end up wanting a very good German Equatorial Mount (GEM) with a high quality (but likely fairly small) refractor. There are other choices that can be made as well but that is sort of the lower-cost option for high-quality astrophotography (AP).
But I generally don't recommend that beginners start out buying telescopes for AP. Better to get something for visual use and then start planning and plotting your future course. After all, if you start out in Astronomy with a good 6-8 inch Dobsonian and then later buy a good AP rig, then while your AP rig is acquiring hours-long images you can still be using the Dobsonian rather than being bored out of your skull.