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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No General MAS Meeting until September

Astrophotography Class
Dennis Roscoe is teaching this course at UW-Waukesha. All are invited. Complete info here.

Next Public Open House:
August 22, 7:30PM
Program: The Wonders of Nebulae

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Public Viewing Nights

Open House Nights for 2014

April 25, 7:30PM
The Giant Planet: Jupiter

May 23, 7:30PM
The Red Planet: Mars

June 20, 6:00PM
The Sun

August 22, 7:30PM
The Wonders of Nebulae

September 12, 7:30PM
Ice Giants: Uranus and Neptune

October 3, 7:30PM
The Moon

Possible meteor storm on May 23-24 was a bust!

Mars is now past opposition in the south during the early evening. How to spot it in the sky.

Upcoming Venus/Jupiter conjunction in the early morning sky. Closest on August 18th.

Saturn is past opposition in the southwest after sunset.

See more sky updates:

S&T: This Weeks Sky At A Glance
Astronomy Mag: The Sky This Week

Lagoon Nebula

What's new in the Showcase? The latest image from Dennis Roscoe! Here is his processed picture of M8, the Lagoon Nebula taken with his TOA-130F f/5.3 telescope and STF-8300M camera.  It is a narrowband image with a total exposure time of 7 hours - 2hr Ha, 2hr SII, and 3hr OIII.  And if you'd like to learn how Dennis does this magic, he's teaching a course in September at UW-Waukesha that all are welcome.  Click here for details.   

Meteor Shower Bust On May 24th from about 12:30AM to 3:45AM, the hoped for meteor show (possibly even a storm) was nearly a complete bust. It produced nearly no meteors. As we reported earlier, we were passing through for the first time a debris field left by Comet 209P/Linear and no one knew how rich or sparse.  Conclusion: sparse.  But we do have a few meteor showers every year and they are a naked-eye viewing events.  More information about meteor showers can be found at


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Current Sky Chart from Heavens Above  



Globular Clusters
Open Clusters
  Click for Observing Info

Sky Chart
Solar Activity
Artificial Satellites
Lunar Phases



  Variable Stars

Eclipsing Binary Ephemeris
RR Lyrae Ephemeris