The observatory is OPEN !
Please sign up here in advance to reserve your spot.
We are open at 8:30PM on Tuesday, Wednesday, and Thursday.
* Last updated: 9/29/2026 at 8:09 PM
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* Our open/closed status will be updated ~30 minutes before each session.
Check out Start Here for what to bring and how to find the Observatory
For more info, please contact astro-oa@calpoly.edu
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