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eastern horizon by around 8 to 9 p.m. tonight. You can find this constellation easily!
• All solar system planets in late November/early December night sky
• The most noticeable part of Orion is the pattern called Orion's Belt: three medium-bright stars in a short, straight row. As seen from mid-northern latitudes, Orion appears to be lying on his side - with his Belt stars pointing upward - when he first ascends into our eastern sky in mid-evening at this time of year. Orion's two brightest stars -- Betelgeuse and Rigel -- shine on opposite sides of the Belt.
• As night passes, and Earth spins beneath the sky, Orion will climb higher in our sky. When this constellation is highest in the south, it is a huge, noticeable star pattern. But Orion doesn't reach its highest point until the hour or so after midnight (that's local time, for all times zones around the world) at this time of year.
• Like all the stars, Orion's stars rise some four minutes earlier with each passing day, or about two hours earlier with each passing month. If you see Orion shining in the east at 8:30 p.m. tonight, look for Orion to be in the same place in the sky at about 6:30 p.m. a month from now. Or if Orion is due south at 1 a.m. tomorrow, look for Orion to be due south at 11 p.m. next month.
• This shift in Orion's location is due to Earth's movement in orbit around the sun. As we move around the sun, our perspective on the stars surrounding us shifts. At the same hour daily, all the stars in the eastern half of sky climb up a bit higher, whereas all the stars in the western half of sky sink a bit closer to the western horizon.
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