Simple low cost circuit to connect inexpensive optical encoders to a dobsonian telescope
Why do you think that https://github.com/CelestiaProject/Celestia is a good alternative to DobsonianDSC
Simple low cost circuit to connect inexpensive optical encoders to a dobsonian telescope
Why do you think that https://github.com/CelestiaProject/Celestia is a good alternative to DobsonianDSC