NSA Club

Northwest Suburban Astronomers

Club Meetings: Meetings are on the Friday nearest the full moon each month.
Check our Events page for each month's meeting location.
Business Correspondence: The club's official mailing address for business correspondence is
PO Box 261, Dundee, IL 60118.

Our club is based in the northwestern suburbs of Chicago. With a wide range of interests, experience, and equipment, our membership is over 150, making us one of the largest astronomy clubs in the mid-west. Here you can find out about our public meetings, star parties, and the benefits of becoming a member. Thanks for visiting, and clear skies.


Astronomy Day
with the
Northwest Suburban Astronomers
and the
Harper College Department of Physical Sciences

Saturday, May 11, 2019

Harper College

Building Z


Explore the wonders of the universe... see the moon, planets, stars, and galaxies.

On Saturday, May 11th. - RAIN or SHINE - we will host an informative and entertaining celebration of astronomy beginning at 5:30 pm.


If the skies are clear, telescopes will be available for viewing a variety of celestial objects.

NSA members will be on hand to answer any questions and conduct general tours of the night sky.

But don’t stay away even if it’s cloudy.  Inside the school will be a wide variety of shows, demonstrations, and exhibits.

Email us here for more information.

Download the 2019 flyer by clicking the above image.

Download the 2019 flyer by clicking the above image.

Programs scheduled for 2019 .
Every 15 minutesZ130Craft Projects for ChildrenSuzy WeberMake a solar system mobile. Color, cut out, and assemble a solar system model.
6:30 to 8:30Z128Inflatable Planetarium Dr. Kelly PagePrograms will be run at 15 minute intervals, no more than 15 attendees at a time. No advance tickets. First come, first serve. We will try to accommodate as many people as possible.
6:00 PMZ102 Making Light Work of ExoPlanets Dr. Timothy Banks How small changes in light from distant stars reveals the existence of planets in orbit about them. We'll learn how to calculate a planet's radius, mass, density and orbital distance --- looking for the Goldilocks planet, one that is not too hot, not too cold, but just right.
6:00 PMZ117Hubble vs Webb: What are the Differences? Dean Mikolajczyk As the James Webb telescope prepares for its launch in 2020, how is it different from Hubble?
6:00 PMZ119Planet Earth as ArtJim PlaxcoThis presentation asks the audience to consider planet Earth as a work of natural art based on a collection of images taken by remote sensing, Earth-orbiting satellites. Scenes include cities for scale, river deltas, lakes, mountains, volcanoes, glaciers, clouds, deserts, and sediment flows.
6:00 PMZ123The Universe through ImagingTom AuchterLearn about different types of celestial objects, star clusters, nebulae and galaxies through astronomy images.
7:00 PMZ102Ryugu, Bennu and Ultima Thule Kevin ColeIt’s time for the smallest of solar system bodies to make headlines. See what’s going on at these three bodies through three very different planetary missions.
7:00 PMZ117 The Mystery of Epsilon Aurigae: Review and UpdateRoger KolmanThe Epsilon Aurigae problem is revisited, current results, and planned observing programs for the future are considered.
7:00 PMZ119 Oumuamua: Natural Object or Alien ProbeDale DellutriDale Dellutri, a member of the Skokie Valley Astronomers club, will discuss the scientific and media controversy surrounding Oumuamua, the first discovered interstellar visitor to our Solar System.
8:00 PMZ102The Search for Planet 9Jim Kovac Join a quest to discover whether our Solar System has another massive planet beyond Neptune.  We'll consider the evidence gathered thus far that hints at its presence and discuss the possible nature of this predicted outer planet.