View Full Version : Why Does Sirius Twinkle?

2012-Jan-16, 06:50 PM
At this time of year, after dark we in the northern hemisphere are able to see the mighty constellation of Orion rise high in the sky with a very bright companion: Sirius The Dog Star. Sirius is the brightest star in the sky and can easily be found in the faint constellation of Canis [...]

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