Star Charts


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Star Charts


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January 2020

After Sunset

For much of the year, we use the stars of the Big Dipper to help us find Polaris, the North Star. However, the Big Dipper is harder to find in the early evening hours this time of year. It appears very low to the northern horizon after sunset. Some of its stars even set below the horizon from our latitude in Tennessee. You’ll have to wait until 10 or 11 at night to see it all.

Fortunately, another group of stars can help us find our way. Look for a group of five stars known as Cassiopeia the Queen. When the Big Dipper is low to the horizon, Cassiopeia is high in the north. The central peak of this constellation’s W-shape points you in the direction of Polaris.

Polaris is not a particularly bright star, but it does remain fixed in the sky throughout the night and throughout the year. When you face the North Star, you’re facing due north. Polaris is at the end of the handle of the Little Dipper. This group of stars is officially known as Ursa Minor the Little Bear.

High in the west is the asterism called the Great Square of Pegasus. Three of these four stars are part of autumn constellation Pegasus the Flying Horse. The remaining star marks the head of Andromeda the Princess.

To the east, you can find the bright stars of the winter evening sky. The most famous and easily found constellation is Orion the Hunter. Look for the three stars in a straight line that mark his belt, the two stars that mark his shoulders, and the two stars of his feet. Betelgeuse, one of this shoulder stars, is disctincly red in color. Learn to find Orion and he can direct you to many other sights of the winter sky. This part of the sky contains some of the brightest stars throughout the year.

Follow Orion’s belt down and to the left for the brightest star in the night sky, Sirius, in Canis Major the Big Dog. Follow the belt stars up and to the right to find orange star Aldebaran, the eye of Taurus the Bull. Look just past Aldebaran and you may see a grouping of stars called M-45, or the Pleiades Star Cluster.

Other bright stars to look for are Capella in Auriga the Charioteer, Procyon in Canis Minor the Small Dog, and Castor and Pollux which mark the heads of Gemini the Twins. All of these stars can be found using Orion as a guide.

A Look Ahead

As Earth orbits the Sun throughout the year, the constellations rise and set just a little bit earlier every day. You won’t see much difference from night to night, but you will over the course of weeks or months. What we see in today’s pre-dawn sky is a preview of the early evening sky in later months. Go out before dawn this month for a look ahead at the late winter night sky.

Just before dawn, our winter constellations have set in the west. The Big Dipper is now nearly straight overhead. Just below it is famous springtime constellation Leo the Lion.

Look to the southeast to find the red planet Mars rising. Be careful! It’s very close to the red star Antares, in Scorpius the Scorpion. The name Antares literally means “rival of Mars” because the the red color can make the two objects hard to tell apart. A handy trick to help you out: stars twinkle, but planets don’t. Also, Antares will appear much brighter than Mars.

Compare the locations of the Big Dipper and Cassiopeia from where you saw them in the early evening. These two star pictures stay on nearly opposite sides of Polaris so that as one is high in the sky, the other dips low to the northern horizon.

From Dark Skies

Bright outdoor lighting can make it hard to see all but the brightest stars. On a clear night, find a dark spot far away from city lights, give your eyes time to adjust to the dark, and look for even more celestial sights. You can begin by looking for the fainter stars of the season’s constellations. Pegasus, Andromeda, and the stars of the Little Dipper all become easier to explore.

Winter evenings are great for spotting the Milky Way coursing from the southeast, through Canis Major, Orion and Auriga, on past Cassiopeia in the northwest. This hazy band of light is the bulk of our disc-shaped galaxy, as we see it from within.

Look below Orion’s belt to find M-42, the Great Orion Nebula. This faint patch of light is a massive star-forming cloud of gas and dust over one thousand light years away. Take a look through steady binoculars or a small telescope to see a little more detail.

To many people, the Pleiades star cluster looks like the Little Dipper, except it’s much smaller. If you have dark skies and good eyesight, you will see at least six, maybe even seven stars in this cluster. With binoculars, you’ll see dozens of stars!

Near Andromeda, look for M-31, the Andromeda Galaxy. This massive spiral galaxy is the most distant object visible to the unaided eye, but to find it requires crisp, dark skies and a little patience. Binoculars or a small telescope can improve the view, but don’t expect to see more than a faint, fuzzy, oval-shaped blob. If you don’t feel impressed, just remind yourself you’re looking at the collected light of possibly one trillion stars, all at a distance of two million light years away. Now that’s impressive!

Don’t have a telescope? Don’t know where to find dark skies? The next free public star parties hosted by the Barnard-Seyfert Astronomical Society are scheduled for Saturday, January 4 from 6:30 to 8:30 pm at Bells Bend Outdoor Center. Come observe the Moon, Saturn, star clusters, the Andromeda Galaxy and more, through telescopes provided by BSAS members.

Visit the BSAS web site at for details. If the weather is bad, the star party will be canceled. Make sure to check their web site for updates before making the trip to a star party, especially if the weather is iffy. On the BSAS web site you’ll also find driving directions and a list of future events.

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