Author: Editor

by John H. Bickel, Ph.D. Denver Astronomical Society, Member

In 1867, French astronomers Charles Wolf and Georges Rayet using the 40 cm Foucault telescope, at the Paris Observatory [Ref. 1], discovered three stars in the constellation Cygnus (now designated HD191765, HD192103 and HD192641) that displayed broad emission bands instead of the typical absorption lines seen in most stellar spectra.… Continue reading.

Here’s a brief look at what’s going on in the Mile High City this week.

Here’s a brief look at what’s going on in the Mile High City this week.

Each month, the Astrophotography Special Interest Group (ASIG) of the Denver Astronomical Society gathers to share one of the most inspiring parts of our hobby—the images we’ve captured of the night sky.… Continue reading.

Here’s a brief look at what’s going on in the Mile High City this week.

Here’s a brief look at what’s going on in the Mile High City this week.

Colorado’s list of communities working to protect the night sky continues to grow. The Town of Frisco has officially been designated an International Dark Sky Community by DarkSky International, recognizing the mountain town’s commitment to reducing light pollution and preserving its spectacular nighttime environment.… Continue reading.

Here’s a brief look at what’s going on in the Mile High City this week.

Each month, the Astrophotography Special Interest Group (ASIG) of the Denver Astronomical Society gathers to share one of the most inspiring parts of our hobby—the images we’ve captured of the night sky.… Continue reading.

Here’s a brief look at what’s going on in the Mile High City this week.