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

Special Events

Title: “Grand Canyon Star Party”

Saturday, June 1-8, 2024
Link: TBD
Club Contact TBD


Title: “Flagstaff Festival of Science”

Saturday, June 1-8, 2024
Link: TBD
Club Contact TBD

Activities for July 2024


Monthly Meeting for July

Saturday, July 20, 2024
Presenters: Klaus Brasch & Leo Aerts

Title: “ The Moon as it Never Was”

In 1874, James Nasmyth and James Carpenter published a remarkable book, The Moon: Considered as a Planet, a World and a Satellite, which quickly became one of the most influential works on the lunar surface ever written. In addition to containing the most spectacular and detailed images of Moon at the time, it was also the first serious scientific treatise dealing with the origin, formation and geology of our Moon during the Victorian era. How well has it stood the test of time? Better than might be expected.


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