astroscope

[In Ger. astroskop ; Gr. ἄστρον ( astron ) = a star, and σκοπέω ( skopeō ) =to look at.] An astronomical instrument for observing or refreshing the memory with respect to the relative position of the stars. These are delineated on two cones. A celestial globe, however, is both more accurate and more convenient. ( Webster , .)