In that price range you aren't going to do any deep viewing with any clarity in the new department. Optics aren't forgiving. You get what you pay
for. For that kind of money you best look around in the used arena for somebody that has a "package". This would include a basic body, and maybe an
assortment of lenses and stuff.
Go with a reflector type scope as opposed to a refractor. A 6 inch "Scmitt Cassegrain" reflector body would be a beginning. Celestron is a good
brand. Try to get an equatorial wedge and maybe a stand with computer tracking ( but I wouldn't count on it). All these things are available cheaper
these days but like I said the optics grade are important up front for the "clearest, crispest" viewing. When buying used you need to have it
checked by someone that can do that. There are amateur astronomy clubs that meet and those guys know their stuff. They always have gobs of used