Turn Your Classroom into a Planetarium
With a turn of the star date selector knob, the heavens appear, projected on your darkened ceiling. An internal lens system and five interchangeable masks display over 300 stars and 31 constellations. You will also receive a set of six planetary projection rings mounted in one convenient unit, a star guide CD-ROM, science book, and an instructional audio CD. Two C batteries, required, are available separately. Size: 9" dia.