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 January General Meeting
Our next general meeting is January 15th at 8:00PM at the Retzer Nature Center. Interested in membership? Join us at the meeting!

Public Open House
October 9th was our last one of 2015. Our next one will be in April of 2016.

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Public Viewing Nights

A̶p̶r̶i̶l̶ ̶2̶4̶, 7:30PM

M̶a̶y̶ ̶8̶, 7:30PM

J̶u̶n̶e̶ ̶2̶0̶, 6:00PM

A̶u̶g̶u̶s̶t̶ ̶7̶, 7:30PM - Pluto

A̶u̶g̶u̶s̶t̶ ̶2̶1̶, 7:30PM

S̶e̶p̶t̶e̶m̶b̶e̶r̶ ̶1̶1̶, 7:30PM

S̶e̶p̶t̶e̶m̶b̶e̶r̶ ̶2̶7̶, 7:30PM
Total Lunar Eclipse

O̶c̶t̶o̶b̶e̶r̶ ̶9̶, 7:30PM

At our observatory, more info here.

There is a spectacular conjunction of the planets Venus, Jupiter, and Mars, still going on which you can see in the eastern sky starting a few hours or so before sunrise. It will continue until the end of the year.

See more sky updates:

S&T: This Weeks Sky At A Glance

Astronomy Mag: The Sky This Week

New Images from MAS Members

New images in the Showcase! A variety of images taken by MAS members showing off the depth of talent in our membership. Want to learn how to take images like this? Join us! See these and other images in our Showcase
See previous articles from the MAS front page in the Article Archive.  


Sky Chart by Heavens Above Showcase Header Observing Information Header Variable Stars Header

Current Sky Chart from Heavens Above  



Globular Clusters
Open Clusters
  Click for Observing Info

Sky Chart
Solar Activity
Artificial Satellites
Lunar Phases



  Variable Stars

Z UMa Project
Julian Date Conversion
Eclipsing Binary Ephemeris RR Lyrae Ephemeris