Weekend Public Tours at Holcomb Observatory & Planetarium
Recurring / by appointment7:00 PM · Selected weekend evenings: doors 7 pm, shows at 7:30 and 8:30 pm. As of Oct. 24, 2026 only Oct. 23–24 were posted; more dates to be added.
Holcomb Observatory & Planetarium, Butler University4600 Sunset Ave, Indianapolis, IN 46208Directions
All ages; children under 18 and adults priced separately
From $5$5 children (under 18), $8 adults; Butler IDs free; cash or credit
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About this adventure
Butler University's Holcomb Observatory and Planetarium opens to the public on selected weekend evenings. Each visit pairs a fulldome planetarium show (currently Mars: The Ultimate Voyage, about what it would take to send humans to Mars, followed by a guided tour of the fall sky) with telescope viewing when the weather is clear. The main Holcomb Telescope is under repair, so observing uses the observatory's Celestron telescopes and a Seestar S50. If the first shows fill, extra shows are added. Telescope observing is free and weather-dependent; if it is cloudy you can return on any later clear public night. Event parking at Butler can cost $15 per car on basketball or show nights.
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