Jupiter and Saturn will form a rare "double planet" in the sky before Christmas. Here's how to see the incredible spectacle, which hasn't happened in 800 years.
Step outside this week at around 9 p.m. local time and look roughly one-third of the way up from the southern horizon to see Sirius is the Dog Star.
Sirius belongs to the Canis Major constellation and is the brightest star visible from the Earth at night. Take a look at some facts about the Sirius star that explain its extremely bright appearance.