Sky Tonight—March 15, Jupiter is your guide to Mercury in mid-March 2011
these two worlds will set about 80 minutes after sundown
Sky Tonight—February 16, Bright moon puts Cancer in spotlight
Courtesy of EarthSky A Clear Voice for Science Visit EarthSky at www.EarthSky.org The almost-full waxing gibbous moon puts the constellation Cancer in the spotlight – but out of view –…
Sky Tonight—February 15, Moon close to Castor and Pollux
Castor and Pollux are different types of stars. Castor’s white color indicates a hot, youthful star. Pollux’s orange complexion tells us that it is a cool and oldish star.
Sky Tonight—February 14, Blue-white Rigel is at the foot of Orion
Betelgeuse has a reddish hue, while Rigel sparkles blue-white.
Sky Tonight—February 13, Moon points the way to Winter Circle
Tonight’s waxing gibbous moon resides inside the Winter Circle
Sky Tonight—February 12, Moon between stars Elnath and Aldebaran
Astronomers believe the Crab Nebula is the remnant of a star that exploded as a supernova in 1054 A.D.
Sky Tonight—January 18, Moon near Gemini stars Castor and Pollux
Wasat is a rather dim 3rd-magnitude star, yet it is special because it sits almost exactly on the ecliptic
Sky Tonight—January 17, Sun moves toward star Vega in journey around galaxy
Our Milky Way galaxy is a collection of several hundred billion stars. It has an estimated diameter of 100,000 light-years.
Sky Tonight—January 16, Cassiopeia and Big Dipper on opposite sides of North Star
The northern sky’s two most prominent sky patterns – the constellation Cassiopeia the Queen and the Big Dipper – both circle around Polaris, the North Star, once a day
Sky Tonight—January 15, Moon near Aldebaran and the Pleiades
the bright waxing gibbous moon sits right in front of the Bull.