Skip to Navigation | Skip to Content

Astronomical Observatory: Planetarium

Wildrik Botjes Planetarium

The Botjes planetarium is a fully operational model of the solar system completed in 1868. It is on display in North Hall. To learn more about the planetarium, click on the detail of interest in the image or select a topic from the list below. Botjes Planetarium

Site Map:

The planets Table of planetary data Sun and moon Sun and moon description Celestial sphere Sunrise, transit and sunset Twelve hour clock Day of week

Home Calvin observatory home page

Written 1/17/02 and extensively revised and expanded 8/27/2003 and 8/29/2013 by Larry Molnar




Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Nulla ut nibh.


Lorem ipsum dolor sitamet, consectetuer adipiscing elit. Nulla ut nibh.