astroscope

noun3

1. •
   A telescope powerful enough to see astronomical bodies.

   • […] refractors, catadioptric reflectors, astroscopes as well as binoculars. — 1987
2. •
   An astrological chart.

   • You can also construct your astroscope on a wheel, just as professional astrologers do. — 1981
3. •
   An old astronomical instrument formed of two cones, on whose surface the constellations were delineated.

   • The astroscope is the invention of Willliam Shuckhard, formerly professor of mathematics at Tubingen, who published a treatise expressly on it in 1698. — 1823