Brightest Stars Visible From Chicago: #6


We return to the famous constellation Orion for star #6 on our countdown, RIGEL, the brightest star in that constellation.

Rigel in Orion
Rigel is the brightest star in the constellation Orion

Orion is truly a brilliant sight in the winter sky. It is the only constellation with two stars in this countdown, the other was Betelgeuse. And the three stars of its belt do not even make this list. One of the interesting things about observing Orion is that you can really get a sense of the difference in color between stars. Look at Rigel, and then look at Betelgeuse. The color difference is obvious. Rigel looks blue and Betelgeuse looks red-orange. The color difference reflects the different surface temperatures of both stars. Betelgeuse is much cooler.

Orion will return to the evening sky in November.

Next: Chariot of fire?

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