aerial telescope ^{الإنجليزية} (Q395233)

very long focal length refracting telescope without a tube, built in the 17th century; the objective was mounted on a pole, tree, etc. on a swivel ball-joint; the observer stood on the ground and maneuvered the eyepiece to aim at celestial objects ^{الإنجليزية}

اللغة	التسمية	الوصف	أسماء أخرى
العربية	لم تُضف التسمية	لا يوجد وصف
الإنجليزية	aerial telescope	very long focal length refracting telescope without a tube, built in the 17th century; the objective was mounted on a pole, tree, etc. on a swivel ball-joint; the observer stood on the ground and maneuvered the eyepiece to aim at celestial objects