2024 05 13

Mini Observatory

Matt Hough’s journey back to his hobbies after retiring from the corporate IT world led him to combine his passion for astronomy with his interest in computing, resulting in the creation of a mechanized mini observatory and telescope based around the Raspberry Pi 4. Over a period of two years and through multiple iterations, Matt developed his telescope design, leveraging the capabilities of the Raspberry Pi and various Python packages for controlling stepper motors and processing astronomical images.

The mini observatory project began with experiments using the Raspberry Pi Pico, but Matt soon realized the need for more processing power and switched to the Raspberry Pi 4B. He utilized Python packages such as Skyfield, OpenCV, PiDNG, and Astroalign to facilitate functions like tracking celestial objects and aligning images. Additionally, he implemented a ‘semi-intelligent’ motor controller for the telescope, allowing it to move autonomously while the Raspberry Pi was busy capturing photographs.

Throughout the project, Matt learned and applied new skills in 3D design, sourcing components from reputable suppliers, and integrating complex mechanisms into his observatory. Feedback from other makers who built their own versions of the mini observatory helped him refine his design further.

Looking ahead, Matt is considering a second version of his mini observatory, exploring possibilities such as improved imagery with support for a second camera and potential upgrades for future Raspberry Pi models. Overall, his project demonstrates the remarkable intersection of astronomy and technology enabled by platforms like the Raspberry Pi.