Joseph Proskauer gives us an equinoctial update on the movements and visibility of the planets and the effects of full Moon and spring tides.
March brings Mercury's best evening apparition of the year (worthwhile, as few of us have knowingly seen Mercury):
Once you've found Jupiter, look for Mercury near it. These are by far the brightest objects in that part of the sky, so there's no chance of mistake. (The only possible confusion would be from airplanes; but airplanes will shift within a minute or two, while Jupiter and Mercury stay put except for their gradual descent toward the horizon.)
Mercury appears higher each evening in March until the 22nd, while Jupiter appears ever lower. So by the end of that period, Mercury may actually be the more obvious of the pair, despite the fact that it's slowly fading. Starting around March 25th, Mercury plunges back toward the Sun, fades rapidly, and soon becomes hard to locate with the unaided eye.
Equinox -- March 20th:
What shape does the tip of a shadow trace on the Equinox? Try marking the tip of any shadow (post, roof, tree, or standing stone) every hour or two during the day.
Closest (most perfect) sunrise is Sunday March 20th (shortly after 6:30 AM at Cairn Holy -- allowing for eastern ridge). But all sunrises that week (e.g. Friday, Saturday, Monday, Tuesday) will show the general phenomenon. There are further interesting events which follow throughout the morning.
Equinoctial sunset: before 5:30 PM (at Cairn Holy).