The Rainbow Star: Sirius

 If the weather forecast proves correct, this week’s sky-watching may be a little difficult for observers in the Kindersley area.

But don’t be discouraged! If you are patient, and fortunate, you may be able to spot the waxing moon and a few of the brightest stars through the clouds.

One star to look for will be Sirius. This star is the brightest star in the night sky, and it is especially prominent these January evenings. Located in the constellation Canis Major, it blazes away in the southern sky between late evening and the wee hours of the morning. Besides being the brightest star, period, Sirius is especially easy to find because of its close proximity to Orion. The three stars of Orion’s “belt” point directly toward Sirius.

Image Courtesy of www.vudesk.com
Image Courtesy of www.vudesk.com

You may have seen Sirius before, twinkling furiously and perhaps even changing colours. This rapid colour-changing has earned it the title of being a rainbow star. It’s an effect caused when a bright star shines through earth’s atmosphere, and it’s especially noticeable when Sirius is close to the horizon.

Image Courtesy of www.freestarcharts.com
Image Courtesy of www.freestarcharts.com

By Rina Rast

Rina graduated from homeschool in 2016 and is a current undergraduate student. Her interests include science, photography, philosophy, and 20th century history. When not analyzing data, tackling term papers, or exploring the night sky through her telescope, she enjoys reading, writing, and walking her canine friends.