În al doilea rând Anii adolescenței pară reflecting telescope from cincinnaati cutie conservator Retenţie
Tamke-Allan Observatory - Wikipedia
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Cincinnati Observatory – The Electronic Nomad
The Cincinnati Astronomical Society acquired this 8" Alvan Clark & Sons Refracting Telescope way back in 1924, but this gorgeous antique tel… | Telescopi, Strumenti
Telescope: The 26-inch Photographic Refractor & the 30-inch reflector of the Thompson Equatorial (1896)