It's an issue for amateur astronomers too as you have a mirror in a long tube pointed directly at the sky: https://britastro.org/2021/dealing-with-dew https://b

It's an issue for amateur astronomers too as you have a mirror in a long tube pointed directly at the sky: https://britastro.org/2021/dealing-with-dew https://britastro.org/2021/dealing-with-dew