MAS General Meetings
Our next General meeting will be on
Public Open House
Our next open house will be
July 19th, Saturday.
Membership Information
Focal Point Newsletter
Meetings & Calendar
Public Observing Night Schedule
Observatory Map & Directions
Signup for Astronomy News
MAS Observatory occupies 3 acres at 18850 W Observatory Rd in New Berlin, WI 53146
View the Observatory & Grounds
Open House Nights for 2025
We are pleased to announce we have established an Open House schedule for this year.
May 9, 2025, 7:00-10:00PM
June 14, 2025, 1:00-4:00PM
July 19, 2025, 1:00-4:00PM
August 8, 2025, 6:30-9:30PM
September 26, 2025, 6:30-9:30PM
October 24, 2025, 6:00-9:00PM
Click/Tap here to sign up for our email reminders of upcoming Open House nights.
Astronomy Magazine: The Sky This Week
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Winter Sky Tour Constellations The Sky by Eye Star Hopping |
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Stargazing Spring Sky Tour Summer Sky Tour Autumn Sky Tour |
Winter Sky Tour Constellations The Sky by Eye Star Hopping |
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Beginner's Guide Getting Started Stellarium Asterisms Celestial Sphere Telescopes |
Using Telescope Solar System Deep Space Objects Double Stars Star Hopping Day and Time |
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Beg Guide Get Started Stellarium Asterisms Cel Sphere Telescopes |
Using Telescope Solar System DSOs Double Stars Star Hopping Day and Time |
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Beginner's Guide Getting Started Stellarium Asterisms Celestial Sphere Telescopes |
Using Telescope Solar System Deep Space Objects Double Stars Star Hopping Day and Time |
