Building an observatory has always been one of my dreams, and I’m proud to say it’s now a reality. The COSMAN ASTRONOMICAL OBSERVATORY is a homemade project, born from passion, recycled materials, and long nights of learning, assembling, and testing. The main structure is built from bricks and concrete, providing solid support and insulation for my instruments. For the dome, I took inspiration from modern telescope enclosures like those at La Silla Observatory in Chile, but added my own touch using wood and a rotating base. The dome is currently manual, but I plan to motorize it in the future. Inside the observatory, I use the Altair 70/420 ED doublet telescope. It is compact but powerful, perfect for wide-field astrophotography. Attached to it is a Canon 500D camera with the IR filter removed, which improves its sensitivity to deep-sky objects such as nebulae and galaxies. For the mount, I use a custom GoTo system using a 3D printed body and NEMA stepper motors. The electronic...
