minus-squarePlauditecives@lemmy.worldtoAstrophotography@lemmy.world•Would this even work?linkfedilinkEnglisharrow-up3·3 days agoTelescopes with fixed optics and mobile mirrors have been done. Mostly used for solar observation but they are few exceptions. Most notably This telescope from Paris’s 1900 universal Exhibit . Poor scientific instruments but great party trick with focal length of 57 METERS ! linkfedilink
Telescopes with fixed optics and mobile mirrors have been done. Mostly used for solar observation but they are few exceptions.
Most notably This telescope from Paris’s 1900 universal Exhibit . Poor scientific instruments but great party trick with focal length of 57 METERS !