Milwaukee Astronomical Society

Milwaukee Astronomical Society

Astronomy is our hobby! Dedicated to the fun of astronomy at all levels from beginner to expert, casual viewing to scientific research. We welcome everyone interested in astronomy. Find out more about us.

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MAS General Meetings
Our next General meeting will be on September 20th at 8PM at the Observatory.

Public Open House
Our next open house will be on July 19th, from 8:00 - 10:30PM. There will be a special presentation on the 50th anniversary of the Apollo 11 moon landing.



MAS Observatory occupies 3 acres at 18850 W Observatory Rd in New Berlin, WI  53146

View the Observatory & Grounds



Open House Nights for 2019

June 22, 1:00-4:00PM

July 19, 8:00-10:30PM

August 23, 7:30-10:00PM

September 6, 7:00-10:00PM

October 5, 6:30-9:00PM

October 25, 6:00-9:00PM



For sky updates:

S&T: This Weeks Sky At A Glance

Astronomy Magazine: The Sky This Week






On Friday at 8:30PM, don't miss our Open House night which will celebrate the 50th anniversary of the Apollo 11 mission. Gene Hanson will have a presentation about that mission and in general the space race. See our Public Nights page for more details.

MAS Observatory panorama at dusk.