3 ms·
Hmm...I can't find a source in print, so all I can tell you is that I'm an astronomer who has observed at some of these observatories (e.g. LBT).
by splat 16y ago
Hmm...I can't find a source in print, so all I can tell you is that I'm an astronomer who has observed at some of these observatories (e.g. LBT).