I completed the installation of my small (very small) back yard observatory based on a small plastic shed with a roof that slides back about half way. It beats a tripod in the grass. Easy set up, no wet grass, chigger bugs, or fire ants and less mosquitoes. Easy shut down for the night. Total cost was about $700, not counting telescope equipment. All the wood, including the plywood is ground rated, pressure treated.
This will allow some Astro imaging, primarily with my little Canon M50 that has been modified with the removal of the factory UV/IR filter for full spectrum. I will usually be using either a light pollution filter or a narrowband filter, due to heavy light pollution.
It allows access to about 20 degrees above the horizon in each direction and about 25 degrees for North. I am pretty much limited by the height of the neighbors roofs anyway. If you have a go-to mount, your only concern would be for the scope slewing to hit the roof (to the North on my installation). My mount is push-to with DSC’s, so no problem with that.
Notes on Photos
1. Concrete foundation for pier. 2 ft. 6 in. wide x 1 ft. 6 in. deep round hole, poured with 12 in. deep concrete with rebar, and a 12 in. round riser to about 2 in. above the ground and 4 - 1/2 in. all-thread rods embedded to mount the pier.
2. Setting decking support while fighting the heat with all the tools available (umbrella, fan, and water)
3. Deck, with isolation from the pier foundation to avoid transferring vibrations.
4. Little Plastic Building (4 ft. 8” in. wide x 6 ft. 8 in. deep x 4 ft. 4 in. high) with telescope installed. The roof slides back partially. Notice a little bit of room in the back for storage and a for little shelf for laptop and a short stool. I pretty much have access to all the skies above the neighbors roof lines.
5. Ready to close down.
6. It all fits and closes up nicely for the night. That way I can stop imaging and be in bed in 5 minutes (15 with a shower) and put the telescope away the next morning and leave the mount in place.