Sirius rises at about 8 p.m. Christmas Eve and about 30 minutes earlier, or 7:30 p.m., on New Year's Eve. Why not step outside with your family this holiday season and bark with “the Great Overdog that romps through the dark?”
Get ready for the best meteor shower of the year. It’s the Geminid meteor shower, and it could bring as many as 120 shooting stars per hour to our sky.
When you see Orion rising in the early evening, you can be certain that the winter snows are not far behind. Welcome back, old friend.
What’s that flashy, golden star hovering over the northeastern mountains as darkness falls in late November? It’s Capella, the third-brightest star visible in Colorado skies and the brightest star in the constellation of Auriga, the Charioteer.
Our Milky Way is flat, like a pancake made of star batter. It’s a spinning disk of stars about 100,000 light-years across but only 3,000 light-years thick. During the early evenings of late spring, we are positioned so that we can look straight up out of the top of our Milky Way pancake and into the intergalactic space that forms the rooftop of the sky.
If all goes according to plan, a little space probe named Philae will separate from the European Space Agency’s Rosetta spacecraft late Tuesday and make the first controlled landing on the surface of a comet Wednesday morning.
Nestled in between the constellations of Andromeda, Perseus and Pisces is a delightful little trio of stellar triangles, visible on crisp November evenings. Each triangle has an interesting history, all its own.
Don’t be surprised if you see a blazing fireball or two streaking across the heavens while you are out trick-or-treating this Halloween season. There’s no reason for alarm. It’s just the annual Taurid meteor showers reaching their peak of activity.
Thursday’s eclipse begins at about 3:20 p.m. when the moon will take the first little “bite” out of the solar disk. Maximum eclipse is at 4:35 p.m.
Mars and Comet Siding Spring will be about 1.6 astronomical units from the Earth (about 150 million miles) at the time of closest approach, around midday Sunday. Amateur astronomers with telescopes 8 inches in diameter or larger might be able to view the very faint comet and Mars together, side by side, in their telescope that night and the night before closest approach.
I am writing today to inform you that now is the prime time to see Uranus up in the sky. Uranus, with its dingy rings and its entourage of 27 moons, will be closest to the Earth for this year on the night of Oct. 7, an event called opposition.
The second total eclipse of the moon this year happens during the wee morning hours of Oct. 8 when the full Harvest Moon once again slips into the shadow of the Earth.
Stroll outside on any early fall evening, look straight up, and there, three very bright stars will catch your eye, forming a giant triangle. The three stars are named Vega, Deneb and Altair and their familiar pattern is nicknamed the Summer Triangle.
Vega is the alpha star in the constellation named Lyra, the Harp, and lies a mere 25 light years from Earth.
Vega, Deneb, and Altair — these are the three bright stars marking the corners of the Summer Triangle, the most prominent star pattern of late summer.