Sky show over East County

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Photo by Phillip Brents Motorists traveling eastward on Interstate 8 Sunday near sunset got a celestial surprise as the partially eclipsed Full Flower Moon rose to the southeast over El Cajon.

For motorists driving eastward along Interstate 8 Sunday just after sunset, they likely took in a rather surreal sight along the southeastern horizon: May’s Full Flower Moon with a big bite taken out of its backside.

The Moon was, in fact, rising in deep partial eclipse in preparation for that evening’s total lunar eclipse that graced skies throughout San Diego County and the western United States.

With much of the county’s coastal regions clouded out by a high marine layer, residents of Alpine and East County’s back country, in particular, had a front row seat to the proceedings.

City dwellers lined turnouts along Sunrise Highway winding up Mount Laguna to get a glimpse of the spectacle.

The partial eclipse lasted until about 8:29 p.m. when the last illuminated portion of the lunar disc finally gave way to the Earth’s reddish umbral shadow. The Moon, still not far above the horizon, continued to darken as it rose higher in the sky toward mid-eclipse at 9:12 p.m.

The Moon’s path across the Earth’s shadow, as projected on the sky, took it just south of the center, making Sunday’s total lunar eclipse one of the darkest in years.

In fact, the Moon was so dark —a true blood red color — that some observers had trouble initially locating it above the pincers of the constellation Scorpius.

The Moon remained dark until it began to leave the Earth’s umbral shadow about 9:54 p.m. upon which it began to brighten again. The partial lunar eclipse lasted until 10:56 p.m. when observers were able to discern a more familiar Full Moon phase.

The Moon can be under total eclipse only when the Earth lines up between it and the Sun. Thus, total lunar eclipses can only occur during Full Moon. What made Sunday’s Flower Blood Moon even more spectacular was the Moon residing within 90 percent of its closest point to the Earth in its monthly circuit around our planet, making it a Super Moon.

Thus, Sunday’s total eclipse was denoted as the Full Flower Blood Super Moon.

A Super Moon can appear as much as 14 percent larger than on average during its somewhat elongated orbit around the Earth, causing it to appear as much as 30 percent brighter than a Micro Moon (when the Moon is farthest in its orbit from the Earth and smallest in appearance) and 16 percent brighter than on average.

There will be four Super Moons in 2022, the next ones occurring on June 14 (Full Strawberry Moon), July 13 (Full Buck Moon) and Aug. 11 (Full Sturgeon Moon). The Moon will come even closer to the Earth in its orbit in July, making it the largest and brightest in the series.

A partial solar eclipse will be visible from the San Diego region on Oct. 14, 2023, when the Moon will cover 68 percent of the Sun. An annular eclipse will be visible along a path from Oregon, a slice of Northern California and through Nevada, the Four Corners region of Utah, Arizona, New Mexico and Colorado, and Texas.

Sky show over East County