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Observing: It s time for the 2021 Messier Marathon
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The Sky This Week from March 5 to 12
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Stelliferous: March skies will have a great show for amateur astronomers
Howard Hochhalter
Early March’s pre-dawn sky will give us a show worth getting up early for, as Mercury, Jupiter, Saturn and the moon perform a celestial hoedown, all four objects neatly lined up on the ecliptic.
The ecliptic, by the way, is the imaginary line that represents the apparent path of the sun across the sky.
Here are the key dates for the show (all times are 6 a.m.):
March 1: Mercury (shining at near 0.0 magnitude), Jupiter (-2.0 magnitude) and Saturn (+0.7 magnitude) are bunched up together in the eastern sky, with Jupiter 2.5 degrees east of Mercury, and Mercury 6 degrees east of Saturn. (The width of your fist, with the back of your hand facing you, held a full arm’s length from your face, is 10 degrees; the width of your little finger is 1 degree.)
A shooting star takes off during the Geminid meteor stream in Bavaria, Germany. Matthias Balk/picture alliance via Getty Images
Say what you will about 2020, but we can t deny that it was a great year for astronomy and space sciences. And 2021 is shaping up to be another fantastic year for those who love to gaze up in wonder at the universe beyond our atmosphere.
To help you identify the best nights for stargazing and other astronomical events this coming year, here s a list of the top space events in 2021. While the first event on this list isn t until mid-March, that isn t to suggest there are no astronomy events happening in the first 10 weeks of the year. However, in attempting to pare down the list of astronomy events worth planning on, some don t make the cut. If you re heading out to stargaze on a night that isn t on this list, be sure to check a star app to see if any other wonders will be visible that night. Here s our list in chronological order: