Before Sunrise, March 20, 2021
SkyTools 3 Chart

   

Looking at Sky & Telescope's online Week at a Glance for March 1927, 2021, under This Week's Planet Roundup, it says that "Mercury has sunk out of sight into the glow of sunrise." Here's a SkyTools chart showing the morning planets on March 20, 2021, at 6:30 am EDT. Mercury is shining at magnitude -0.1 and has a substantial 24 elongation from the Sun, but because the morning ecliptic is at such a shallow angle to the horizon and Mercury has a -2 ecliptic latitude, it is only 210′ altitude at the time; nevertheless, it should be observable.

Also note that the sun is very nearly at the intersection of the ecliptic, the celestial equator (0 declination) and 0 hr right ascension. That marks the Vernal Equinox (for the northern hemisphere), which occurs about an hour earlier at 5:37 am EDT. Also note that Jupiter and Saturn are now 10.5 apart compared to their Great Conjunction on December 21, 2020, when they were just 0.1 apart in the evening sky. Finally, note that Venus is close to the Sun and will reach superior conjunction at 2:28 am EDT on March 26, 2021.

 

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