Corona around the sun, caused by thin clouds in front of the sun, or perhaps pollen, after the devastating Marshall Fire in Boulder County, early January 2022.
Moon, Mars and Antares: Start watching the east a few days before December 31, 2021, for red Mars and red Antares. On December 31, the moon will join the show.
It's not hard to see a green flash with the eye alone, when sky conditions are right, and when you're looking toward a very clear and very distant horizon.
Aldebaran, the brightest star in Taurus the Bull, is at one tip of a V-shaped cluster. If placed where our sun is, its surface would reach the orbit of Mercury.
Deborah Byrd (asteroid 3505 Byrd) helps edit EarthSky.org and is a frequent host of EarthSky videos. Deborah created the EarthSky radio series in 1991 and founded EarthSky.org in 1994. Prior to that, she had worked for the University of Texas McDonald Observatory since 1976, and created and produced their Star Date radio series. She has won a galaxy of awards from the broadcasting and science communities, including having an asteroid named in her honor in 1990, a Public Service Award from the National Science Board in 2003, and the Education Prize from the American Astronomical Society in 2020. A science communicator and educator since 1976, Byrd believes in science as a force for good in the world and a vital tool for the 21st century. "Being an EarthSky editor is like hosting a big global party for cool nature-lovers," she says.
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