Volunteer-operated observatory open to the public when skies are clear and a volunteer is available. Check website after 5 pm for availability. $3 donation.
John Inskeep Environmental Learning Center, Clackamas Community College, 19600 S Molalla Ave., Oregon City; 503-657-6958, ext. 5665; depts.clackamas.edu/haggart.

OMSI’s planetarium is the largest and most technically advanced in the Pacific Northwest.
1945 SE Water Ave.; 503-797-4610; www.omsi.edu/planetarium.