template_two_column_template CAS - Coconino Astronomical Society - Home Page

Flagstaff
-
Arizona

First Dark Sky
City

CAS Logo
CAS Logo

Featured Photograph

Messier 42, Orion Nebulah

Messier 42, the magnificent Orion Nebula, a favorite object in any amateur telescope, is usually portrayed in vivid, high contrast colors. While that looks spectacular, the reality is that one of our closest stellar nursery’s true colors are likely much more subdued. I have attempted to depict it in hues one might expect as seen in a large aperture telescope, showing the light pink emission regions and the bluish reflection veils surrounding the nebula’s core.

DETAILS: Astro Physics AP 155 Starfire shooting at f/5.2, though an IDAS LPS-V4 filter and a spectrally modified Canon EOS 6D Mrk II. Total exposure: 8 minutes at ISO 4000.

Klaus Brasch


The featured photograph is any astronomical photograph provided by one of our members. If you are a member and have a photogaph you would like to submit please send the request along with the photograph and description to: info@coconinoastro.org.

Members contributions on the Mars and Saturn Conjunction

Jupiter Saturn Conjunction

CAS donation of SeeStar Telescope under Outreach

SeeStar Donation

Special Events

Activities for June 2025


Monthly Meeting for June

Saturday, June 7, 2025, 3:00-7:00PM

Title: “Summer Picnic”

Location: Ramada at Foxglen Park at: 4200 E Butler Ave, Flagstaff, AZ 86004


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.

Home  ||   About  ||   Membership  ||   Calendar  ||   Join us  ||   Outreach  ||  

Flagstaff  ||   Photos  ||   Articles  ||   Observing Sites  ||   Weather
Coordinated Universal Time   ||   National Weather Service
info@coconinoastro.org