Black Canyon Astronomical Society

The BCAS offers programs and presentations on all facets of astronomy to public organizations, schools (elementary through college) and home-school groups.  We have many experienced observers and astrophotographers and can assist newcomers with selection, operation and maintenance of all varieties of optical equipment for astronomical use. 

Pages

WESTERN SLOPE SKIES
11:52 am
Fri July 18, 2014

Western Slope Skies - 7/18/14

The Evening Sky in Late July

The Sun sets late on these long summer days, and it’s not fully dark until almost 10 PM.  And, because of this week’s late-rising moon, the sky remains dark long after twilight, allowing us great views of the Milky Way and the stars of summer.

Read more
WESTERN SLOPE SKIES
12:50 pm
Fri July 4, 2014

Western Slope Skies - 7/4/14

Pluto a planet?  Not a planet?  Beloved Disney Dog?

Read more
WESTERN SLOPE SKIES
12:43 pm
Fri June 20, 2014

Western Slope Skies - 6/20/14

June Solstice

With the arrival of warmer temperatures, perhaps you’ve been enjoying some outings to the mountains or a float trip on a river.  While there is no doubt that summer is in full swing here in western Colorado, it’s not until this coming Saturday that the Universe makes it official. 

Read more
WESTERN SLOPE SKIES
10:08 am
Tue June 10, 2014

Western Slope Skies - 6/6/14

Light Pollution

Those of us that live on the Western Slope are no stranger to spectacular scenery. The jagged peaks, chiseled canyons, and expansive plateaus of western Colorado are treasures that we all cherish. But one of our most spectacular natural wonders may also be one of our least appreciated: our incredibly dark and pristine night skies.

Read more
WESTERN SLOPE SKIES
12:51 pm
Fri May 23, 2014

Western Slope Skies - 5/23/14

Mercury in Evening Twilight
 

Have you ever seen the planet Mercury? When conditions are near optimal, Mercury is easy to see. However, optimal conditions are rare, and many casual observers search for Mercury without success. This is because of the planet’s proximity to the sun.  The safe time to view Mercury is after sunset or before sunrise, depending upon the Mercury's orbit.

Read more
WESTERN SLOPE SKIES
7:00 am
Fri April 25, 2014

Western Slope Skies - 4/25/14

Navigating the Night Sky

The Big Dipper is a great starting point for learning the night sky. Located near the pole of the sky, it never completely sets or dips below the horizon—it’s visible in the night sky year-round from the Western Slope! 

The Big Dipper itself is not a constellation, but it resides in one called Ursa Major, the Great Bear, third largest of the 88 constellations. The name originates from the dipper-shaped pattern formed by the seven main stars in the constellation.

Read more
WESTERN SLOPE SKIES
7:00 am
Fri April 11, 2014

Western Slope Skies - 4/11/14

April’s Total Lunar Eclipse

Late on the evening of April 14th and into the early morning hours of April 15th, skygazers throughout the America’s and much of the Pacific region will be treated to a total lunar eclipse. This eclipse will be the first of two for the year. By the time the sun, earth and moon line up it will have been 857 days or 28 months since we last saw our moon completely in the shadow of our planet.

Read more
WESTERN SLOPE SKIES
7:00 am
Fri March 28, 2014

Western Slope Skies - 3/28/14

Mars At Opposition

Astronomers use a number of curious words to describe the planets in their orbits, for example, quadrature, conjunction, elongation, and ... opposition.

Read more
WESTERN SLOPE SKIES
7:00 am
Fri March 14, 2014

Western Slope Skies - 3/14/14

This is a continuing series on Women in Astronomy.  Today, we meet Margaret Burbidge.

Read more
WESTERN SLOPE SKIES
7:30 am
Mon March 3, 2014

Western Slope Skies - 3/3/14

Today we discuss two giant stars that are easily observed right now and relatively close in the sky.  Aldebaran is an orange giant star, while Betelgeuse is a red super giant.

Read more

Pages