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 Photos | Proclamation | 2014 Schedule

A daytime view of Venus was a highlight of a recent CAD in Denver (at DMNS)
Photo: Ron Pearson, DAS

Colorado professional and amateur astronomers will be celebrating Colorado and National Astronomy Day again this year with Solar Sun Day solar observing, exciting and informative presentations and information at the Denver Museum of Nature and Science and star gazing and displays at the University of Denver's Chamberlin Observatory.

SOLAR SUN DAY at Denver Museum of Nature and Science
Starting at 10am, Saturday, September 27th, Denver Astronomical Society (DAS) solar astronomers will provide members of the public with safe views of the Sun in white, hydrogen alpha (deep-red) and calcium K (deep purple) spectral colors of the Sun. Hopefully the Sun and Earth's weather will cooperate and allow visitors to view sunspot groups, huge prominences -– many times the size of Earth -- and other changing features visible on the nearest star, which is now in an active period.

DAS members will also provide information and answer questions about astronomy, telescopes and Colorado astronomy club activities and will present a talk on meteorites.

Presentations by Denver Museum of Nature and Science personnel will be conducted in Space Odyssey and in the Gates Planetarium. See complete Schedule HERE

The Colorado School of Mines Robotic Mining Competition Team will present Blasterbotica! all day in the Science Atrium, Morgridge Family Exploration Center.

Fees: Normal entry fees for the DMNS will be required for indoor activities.

EVENING STAR GAZING at the University of Denver's Historic Chamberlin Observatory
in Observatory Park, beginning at 7:00 pm

  • DAS volunteers will provide displays and informative lectures inside the observatory

  • DAS members will set up their telescopes for public observing of the night sky on the south lawn of the park.

  • DAS members also will operate DU's 1894 20-inch aperture Clark-Saegmuller Telescope for public observing of the Moon, bright nebulae and star clusters. 

Fees for Chamberlin Observatory: $2 per person or $5 per family; $1 per person if weather is inclement; outdoor activities are free of charge.

Click HERE to view a photo album of past Colorado Astronomy Day activities.

Colorado Astronomy Day was established by governor’s proclamation in 1997 and it has been observed as a major public outreach and education event during the months of September or October ever since. These activities are coordinated with the Astronomical League's Fall National Astronomy Day.



Web Site produced and sponsored for CAD by the
Denver Astronomical Society