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BookmarkSirius is the brightest star in the nighttime sky.
Sirius can be seen from every inhabited region of the Earth's surface.
There are a few unsolved mysteries regarding Sirius..
For more information about the topic Sirius, read the full article at Wikipedia.org, or see the following related articles:
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Orion Nebula — The Orion Nebula (also known as Messier 42, M42, or NGC 1976) is a glowing emission nebula with a greenish hue and is situated below Orion's Belt. It ... > read moreNote: This page refers to an article that is licensed under the GNU Free Documentation License. It uses material from the article Sirius at Wikipedia.org. See the Wikipedia copyright page for more details.
