

Comet Hartley 2, 103P/Hartley, is a small periodic comet with an orbital period of 6.46 years. Next appearance will be April 20, 2017


Comet Hartley 2, 103P/Hartley, is a small periodic comet with an orbital period of 6.46 years. Next appearance will be April 20, 2017
The Marshal Martz Memorial Astronomical Association, Inc. is a 501(c)(3) charity.
You can also support the observatory with purchases from our online store.
Second visit. So great! Many more to come! Thank you! ~ Sam 🙂
Informing, educating and inspiring the general public and supporting teaching in the sciences of astronomy and physics.
The Martz-Kohl Observatory is run by the Marshal Martz Memorial Astronomical Association, a not-for-profit voluntary group of people interested in astronomy. The observatory is located in Frewsburg, New York in Chautauqua County, not far from Jamestown and Chautauqua Lake.
Copyright © 2026, Martz-Kohl Observatory.