Facilities & Events

The Minnesota Astronomical Society (MAS) owns and operates the Eagle Lake Observatory (ELO) which consists of the Onan Observatory, Sylvia A. Casby Observatory, and "Hotspot" Classroom in Baylor Regional Park. MAS manages these state-of-the-art facilities for the benefit of students, teachers, the public-at-large, and members of the society. Its primary mission is education and public outreach.

Learn more about the Minnesota Astronomical Society facilities, society membership, and upcoming events by visiting their website!

Please note that these facilities are only open to the public when MAS members are on site.

Star Parties

• 2026 Public Star Party Schedule (pdf)
  • March - November
  • Typically every other Saturday from 7-10 pm
  • Held rain or shine
  • No registration required

Astronomy Days

• Spring: April 25, 2026
• Fall: September 19, 2026

Camping with the Stars Annual Event

• This exciting weekend includes MAS events, speakers, night-sky tours, & optional camping!
  • August 14-16, 2026
  • August 6-8, 2027
  • July 28-30, 2028
  • July 13-15, 2029
  • August 2-4, 2030
• Learn more here.
• Register here!