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Moon sweeps through Winter Circle March 23 and 24

The ecliptic – sun and moon’s path, marked in green on our chart – cuts through the Winter Circle. So, every month the Circle is visible, the moon sweeps through these stars.

Is Sirius the most luminous star?

To astronomers, the word “luminous” refers to a star’s intrinsic brightness. Sirius is our sky’s brightest star, but only because it’s relatively nearby at 8.6 light-years away.

Westward shift of Orion and all the stars

As Earth makes its grand tour around the sun each year, the constellations all shift westward in our sky. Orion is a good one to notice.

A mysterious star called Epsilon Aurigae

Epsilon Aurigae’s light dims for a period of about 2 years, in a 27-year cycle. The star’s last dimming was from 2009 to 2011.

Use Big Dipper to find Little Dipper

The Big Dipper is easy to recognize, but the Little Dipper … not so much. Here’s a tip that can help.

Use Big Dipper to find North Star

The 2 outer stars in the Big Dipper’s bowl point to the North Star, aka Polaris.

See the zodiacal light

The moon is waning again, leaving the sky dark in early evening. Watch for the mysterious zodiacal light in the west after true darkness falls. Southern Hemisphere? Look east before dawn.

Top 4 keys to mastering moon phases

The most important key is to think of the moon as a world in space, with a day and night side.

Taurus? Here’s your constellation

How to find to find the constellation Taurus in your night sky. Plus the names of some of its bright stars and star clusters and its mythology.

Moon in Taurus February 22 and 23

Tonight and tomorrow night, let the moon show you the constellation Taurus the Bull on the great dome of sky. How to recognize the Bull’s 2 most prominent features, here.