ostorlâb-e taxt-sepehri, ~ kore-yi
Fr.: astrolabe planisphérique
The most common form of the → astrolabe in which both the → celestial sphere and the observer's horizon are projected on to one or more plane surfaces by means of theÂ stereographic projection. See also → universal astrolabe and → particular astrolabe.
→ planispheric; → astrolabe.