Category Archives: Meeting Announcements

May 11th, 2019 – Astronomers as Citizen Scientists

Society Member Isaac Cruz

Please join us to hear long time CAS member, Isaac Cruz present on “Astronomers as Citizen Scientists.” Astronomy is the only amateur endeavor that provide a surprising number of opportunities for an individual to contribute to science.  In this lecture we will learn about a variety of ways Amateur Astronomers can contribute to science.

Isaac Cruz’s Bio:
Retired Electrical Engineer
Past President of CAS
Leads the CAS imaging group CASIS
Lectured at CAS, OSU, Otterbein University, and the Metropolitan University at Puerto Rico
Passionate astrophotographer. 
Work published in various magazines and books.
Citizen Scientist, with published research and exploration work done on variable stars, eclipsing binaries, exoplanets and lately, extra-galactic supernova search in cooperation with OSU.

Coffee and Donuts provided!

April 13th, A Glass Act: Refractors

The Late Ron Ravneberg, CAS member and Telescope Maker observes with his refractor.

Join us as long time observer and CAS member, Phil Creed, presents on the basics of the refractor telescope, pros/cons of refractors, a bit of the history of refractors and modern trends in commercial refractors.  He will cover the dreaded chromatic aberration and get in-depth on many bits of refractor lore and a few “refractor myths”.

Coffee and Donuts provided!

March 9th, 2019 – Sex, Death, Random Violence, and Wee-wee: The Real Story of the Sky.

Join us for our next meeting as Tom Burns, former director of Perkins Observatory, discusses a peripatetic (i.e., “rambling”) tour of the ancient myths connected with the stars and planets from various cultures. We’ll look at our very human concerns as they are reflected in the starry vault. Come for the stories. Come to get a startlingly different view of the night sky.  Come for the weirdly inspirational content. Come for the free donuts.

Not-so-brief bio: Professor (yes, that’s right, believe it or not) Tom Burns has been a member of the CAS for a very, very long time. He is a two-time winner of the Bud Stewart Award and was deeply honored to receive the Jane Gann Lifetime Achievement Award a few years back. Currently, he is the club Secretary. 

He directed Perkins Observatory for a quarter of a century. He has participated in thousands of public astronomy programs over the decades. He has been writing a weekly column on stargazing, first for the Columbus Dispatch and now for the Delaware Gazette, for 32 years. 

He is old and tired, but he still manages to teach a couple of classes at Ohio Wesleyan University every year. His semi-retired teaching load includes a class in Popular Science Writing, in which there is occasionally even a reference to the science of astronomy.

FEBRUARY 9th, 2019 – “COMETS” by James St. John, Geologist and Instructor at Ohio State University’s Newark Campus

“COMETS” by James St. John, Geologist and Instructor at Ohio State University’s Newark Campus.  James has previously presented to the CAS on meteorites and meteor impact sites. This month, James will provide an overview of what is known about comets. Please join us February 9th, 2019 at 8 pm as James surveys historical comets and shares the latest insights provided by spacecraft missions into these visitors to the inner solar system. Refreshments provided.

January 12th 2019 – Paul M. Sutter Presents “Your Place in the Universe”

The Columbus Astronomical Society is pleased to announce that Paul M SutterAstrophysicist at The Ohio State University, Chief Scientist at COSI, and host of the Ask a Spaceman! podcast, will be presenting on “Your Place in the Universe: Understanding Our Big, Messy, Existence.”

He will have his books on hand for purchasing and signing.  Please come early as parking is limited.

Please join us for this special event!

November 10th – General Relativity and Gravitational Waves: Ripples in the Structure of Reality

Join us November 10th to hear Don Stevens, Perkins Observatory Director, and long time CAS member, presents: General Relativity and Gravitational Waves: Ripples in the Structure of Reality

Much mythology and misunderstanding surrounds Einstein and his greatest works, the Special and General Theories of Relativity. Though Einstein is no doubt a genius, his theories did not arise from a vacuum. They are built upon the work of other geniuses. These other great physicists and mathematicians are little acknowledged, but without their work and insight Einstein may have been a little remarked patent clerk for the rest of his life. Einstein, like Newton, stood on the shoulders of giants. We’ll look at Einsteins’ theories in a historical context and one of the most profound and recent confirmations of his General Theory – gravitational waves.

Refreshments will be available.  We hope you can come and join us!

October 13th – Star Parties and Sidewalk Astronomy 101

Join us as CAS Vice President Karen Jennings guides us through attending and even hosting your own star party or sidewalk astronomy event.  Halloween and Trick or Treating is a great time to set up a telescope in the front yard and share the Universe with your neighbors.

Also, CAS Member Chuck Jennings will be presenting on Using a Raspberry Pi as a Wireless Connection Between a telescope and Sky Safari.

We hope to see you there!


July 14th, 2018 – Variable Stars

When you look up at the stars, they seem to shine with a steady light.  However, did you know that there are some stars that change in brightness?  These types of stars are called Variable Stars and each of have their own personality in how they change in brightness.  Variable Stars are very important to Astronomy as they assist Astronomers in understanding stellar evolution and determine the distances of far off galaxies.

Long time Columbus Astronomical Society member and Past President of the Society, Jason Hissong will be presenting on these fascinating stars at our next meeting.

Coffee and Donuts provided!


May 12th, 2018 – Astronomical Illusions, Myths, and Misconceptions

Please join us to hear the Director of the John Glenn Astronomy Park and long-time member, Brad Hoehne, speak about some common astronomical optical illusions that even experienced stargazers fall prey to, some historical “memes” that have entered the popular consciousness, and things that amateur astronomers commonly believe that might not be so.

Also, Amateur Telescope Maker Jason Hissong will be available for our Ask Me Anything series. He will be on hand in the Perkins Library at 7:30 to answer questions about Telescope Making.

Coffee and Donuts will be provided!