Worm Moon penumbral eclipse

Worm Moon at the peak of the penumbral eclipse.

Tonight, I had a chance to photograph the full moon from my front yard. The March full moon is known as the Worm Moon, Crow Moon, Sap Moon, etc. I particularly like the poetic names given to it by the North American indigenous people: “the Eagle Moon” of the Cree or “the Windy Moon” of the Cherokee. In many cultures, it marks the day to balance one’s life and to celebrate the beginning of the new year.

Today’s Worm Moon is interesting from the astronomical perspective because at 0:14 local time (PDT) it was passing through the northern part of the Earth’s penumbral shadow, making it a penumbral lunar eclipse. The Moon darkened only slightly, even though 96% of it was in the penumbral shadow. 

I took a few shots about two hours before the peak eclipse (capturing some neat clouds in a composite image at the bottom), then again about an hour before the peak (the image below) and at the peak darkening (the image above) with a Sony a1 mirrorless camera and a 70-200 mm lens at 200 mm. The settings were: ISO 100, f10, 1/250 sec.

Worm Moon approximately 1 hour before the peak of the penumbral eclipse.
Composite image of the Worm Moon approximately 2 hours before the peak of the penumbral eclipse.

Mercury

I took advantage of being at a very dark-sky location (Mt. Washington skiing resort on Vancouver Island) to observe the planet Mercury at it’s greatest Eastern elongation, right after the sunset. Being the closest planet to the Sun, Mercury is notoriously difficult to see. Today, it reached its widest separation of 18.7 degrees east of the Sun.

I walked outside of our chalet in the Alpine Village and could easily see the bright planet right above the tree tops, just as predicted by my astronomy app (see below). I didn’t have any camera besides my iPhone or even a tripod, but still was able to take the above hand-held photo, thanks to Apple’s magic of computational photography. 

There, Mercury is the bright dot in the lower right, just above the tree line. Well above it, on a nearly-vertical line, are the two brightest stars in the constellation of Aries, the Ram – the orange giant Hamal (“the lamb” in Arabic), whose diameter is 15 times the Sun’s, and slightly dimmer Sheratan below it. The brightest dot in the upper left of the picture is Jupiter.

Through a telescope, Mercury would have exhibited a half-illuminated waning phase, but I was happy enough to see it with the naked eye, on its best-looking day of the year and under some of the best local viewing conditions.