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2017 Solar Eclipse Photos

CAS Photo of the Month


Photo of the Month for Feburary, 2019
The Orion and the Running Man Nebulas
M42 & NGC 1977
January 26,2019
@ 2019 Russ Ruggles

One cold January weekend we had a break in the stormy weather pattern that gave us a few clear nights - well clear enough to get a few hours of imaging in. Anyway this is the result of my second night out. The first night clouded up by the 9th or 10th subframe and the evening was lost.

My imaging rig at the moment is a Williams Optics GTF 81MM F5.9 on an Orion Atlas Pro AZ/EQ. I had acquired a used QHY8 OSC camera a few years ago but never really put it through the paces. It's really not the right camera for that scope, image scale wise, but these results are fine by me.

This image is from a stack of 70 120 second images using DeepSkyStacker "Unguided" 52 flat frames, 27 dark frames, and 27 bias frames were used to calibrate and correct optical and sensor defects.
Post Processing was done in PhotoShop CS6.

Russ Ruggles

Activities for February 2019

Saturday, Feburary 16, 2019
Dr. Michael Amundson, NAU


Title: “Seeing Arizona, Imagining Mars: Deserts, Canals, Climate Change, and the American West”

Michael Amundson is a professor of History at Northern Arizona University. He teaches courses on the American West and Sports History. He has published six books on topics ranging from uranium mining and atomic culture, to repeat photography in Wyoming, to songs about cowboys played on wind-up Edison phonographs. This presentation is based on his award-winning article from the Journal of Arizona History.


CAS Monthly Meetings and Astronomical Programs are held the Saturday closest to the Full Moon at the Mars Hill Campus of Lowell Observatory, Hendricks Center for Planetary Studies Auditorium (6:45 pm - 8:00 pm., unless otherwise noted) followed by refreshments, and informal discussion. Meetings are open and free to the public.

What's New

2019 General Meetings & Special Events Update

The General Meetings & Special Events web page has been updated for 2019 ( press the "Calendar" button on the top left of this page ).

Announcement: The 2019 Club Calendar is Available

The 2019 club calendar with images submitted by our club members based on a lunar theme is available for order.

2019 Calendar Thumbnail Image

It can be ordered on the Join Us web page

Use the CAS club email info@coconinoastro.org to request an alternate payment method


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