Chippewa Valley Astronomical Society


Bringing knowledge of astronomy and enjoyment of the night sky to the Chippewa Valley of west-central Wisconsin


Planets Around Other Stars
Nathan Miller
Department of Physics and Astronomy
UW – Eau Claire
For centuries, astronomers have dreamed about the possibility of
planets orbiting other stars, but until recently the planets which make
up our own solar system were the only planets known. Now, over
3400 planets have been discovered and more are continually being
found. This talk will focus the methods astronomers use to discover
these planets and how their properties are determined. Interesting
comparisons can be made to the planets in our own solar system. I will
conclude with a brief discussion of what these new planet discoveries
tell us about the possibility of life elsewhere in the galaxy. This talk will
help prepare you to understand the news reports that are sure to be
coming in the next few years in this exciting and rapidly-developing
area of science.


Astronomy Day 2017

Saturday May 6th, 10am to 3pm

UWEC Phillips Science Hall

Various Astronomical Displays

Solar Observing (if skies are clear)

Planetarium Shows

Radio Astronomy Demonstration



Hobbs Observatory Astronomical Series

Saturday May 20th, 8pm

Hobbs Observatory


"It's About Time" by CVAS member Emmett Kyle.

Time keeping throughout history.
How time relates to the earth, the sun, and astronomy.
Properties of time.
Time keeping of the present. Atomic clocks and GPS.


This program topic is best suited for middle school an up.


Public observing following the program if skies are clear.




About the society:

The Chippewa Valley Astronomical Society (CVAS) is an amateur astronomy organization in Wisconsin's Chippewa Valley.

The society members have a broad spectrum of astronomical interests from casual to serious visual observing, astro-photography, radio astronomy, and telescope building.

The society holds monthly business meetings, monthly club observing sessions, and performs public outreach at Hobbs Observatory and other locations.

The society hosts Northwoods Starfest,  a regional star party attended by amateur astronomers from Wisconsin, Minnesota, Iowa, Illinois and Michigan.



Membership Information

CVAS membership is open to anyone with an interest in astronomy. Yearly membership dues are $20 for individuals, $25 for families, and $10 for full time students. Membership runs from January 1st to December 31st each year.  Members receive email notices of all upcoming club events.

For an additional cost of $7.50, members may become a member of the Astronomical League (a national group of amateur astronomers). This membership the quarterly publication Reflector.


A membership form is available HERE


2017 CVAS Officers

Mike Brown - President

Emmett Kyle - Vice President

Rick Swenson - Secretary

Bill Childs - Treasurer

Mail Address:

Chippewa Valley Astronomical Society

PO Box 765

Eau Claire, WI  54702






CVAS is a 501(c)3 organization.  All donations are tax deductable to the extent allowed by law.