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Fall Sky Tour 2003: The North
By Pedro Braganca
Special to SPACE.com
posted: 07:00 am ET
03 December 2003

Intro
[Yesterday: The Southern Sky]

This is the second of four articles this week, each examining a different compass direction in the night sky. Our tour guide is Starry Night Pro 4.5, the newest version of the leading astronomy software for night sky enthusiasts.

In the northern sky you will find the Big Dipper low on the horizon. So low, in fact, that the handle of the Dipper dips below the horizon part of the night for many Northern Hemisphere skywatchers. The Big Dipper is the most recognized pattern in the night sky. It resides in the constellation of Ursa Major (the Big Bear).

Northern Sky Explanation below

The map shows the sky from mid-northern latitudes at 9 p.m. local time this week. The zenith is the point directly overhead.

The Big Dipper is a great a starting point to learn the night sky. The two end stars that form the bowl of the dipper point straight to Polaris, the North Pole Star. All the other stars in the sky seem to turn around Polaris. Polaris itself marks the end of the handle of another pattern known as the Little Dipper in Ursa Minor (the Little Bear).

Wrapping around Polaris is the constellation Draco. The stars forming this constellation are associated with dragons in many different mythologies. One of Dracos stars, Thuban, was the North Pole Star when the Pyramids were built. Earth's pole wanders over the millennia, however, causing it to point to different stars in different eras.

Tracing an imaginary line from Dubhe in the bowl of the Dipper to Polaris and toward the Zenith brings you to an M-shaped shaped pattern of stars formed by the brightest stars in the constellation of Cassiopeia (the Queen).

In between Draco and Cassiopeia is King Cepheus. Cepheus was the husband of Cassiopeia. Together they ruled a vast territory in Africa called Ethiopia.

The Perfect Gift

Astronomy for the
Entire Family!

Starry Night software brings the universe to your desktop. Map the sky from your location, or just sit back and let the cosmos come to you.

LEARN MORE!


Pedro Brananca is an astronomy support associate at Starry Night.

 

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