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Busy Sky-Watching Weekend on Tap as the Total Wolf Moon Eclipse Arrives Sunday Night

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Busy Sky-Watching Weekend on Tap as the Total Wolf Moon Eclipse Arrives Sunday Night

Lewiston, ME: On Sunday night into Monday morning, January 20-21, 2019, a spectacular total lunar eclipse will occur. Weather permitting, totality will be particularly dramatic over North America, where January’s full Wolf Moon will glow an eerie coppery hue high in the dark and crisp winter sky. Farmers’ Almanac encourages everyone to tune in to this spectacular celestial show, which can be seen by nearly 3 billion people.

What is a Total Lunar Eclipse?

A total lunar eclipse occurs when the Earth passes between the Sun and Moon, and lines up precisely so that it completely blocks the Sun’s light, which otherwise reflects off the Moon. A lunar eclipse can occur only when there is a full Moon.

Totality—the time the Moon will spend in the Earth’s shadow— will last 1 hour and 2 minutes. The eclipse will begin when the Moon enters the faint outer portion (called the penumbra) of the Earth’s shadow about an hour before it begins moving into the umbra. The penumbra, however, is all but invisible to the eye until the Moon becomes deeply immersed in it. Sharp-eyed viewers may get their first glimpse of the penumbra as a faint “smudge” on the left part of the Moon’s disk about a half hour after it first enters the penumbral shadow. See Eclipse Timetable, below.

The most noticeable part of this lunar eclipse will come when the Moon begins to enter the Earth’s dark inner shadow (called the umbra). A small scallop of darkness will begin to appear on the Moon’s left edge shortly after it has begun to enter the umbra.

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Eclipse watchers from the Hawaiian Islands will see a different—but still stirring—spectacle: the eclipse will already be in progress when the Moon rises at sunset, with roughly half of the Moon already immersed in shadow. As evening twilight deepens and the Moon gradually becomes more and more immersed in the Earth’s shadow, it will become transformed into a ruddy, ghostly orb.

A Blood Wolf Moon?

During a lunar eclipse, the Moon can sometimes turn red. The light reaching the Moon resembles the “color of blood,” and is sometimes called a “Blood Moon” which can be a bit unsettling. But the explanation is simple:

“During a total lunar eclipse, white sunlight hitting the atmosphere on the sides of the Earth gets absorbed and then radiated out (scattered). Blue-colored light is most affected,” NASA officials wrote online. “That is, the atmosphere filters out (scatters away) most of the blue-colored light. What’s left over is the orange- and red-colored light.”

January 20-21 Total Lunar Eclipse Timetable

HIST AKST PST MST CST EST
Moon Enters Penumbra 6:36p 7:36p 8:36p 9:36p
Moon Enters Umbra 6:34p 7:34p 8:34p 9:34p 10:34p
Total Eclipse Begins 6:41p 7:41p 8:41p 9:41p 10:41p 11:41p
Mid-Eclipse 7:13p 8:13p 9:13p 10:13p 11:13p 12:13a
Total Eclipse Ends 7:43p 8:43p 9:43p 10:43p 11:43p 12:43a
Moon Leaves Umbra 8:51p 9:51p 10:51p 11:51p 12:51a 1:51a
Moon Leaves Penumbra 9:48p 10:48p 11:48p 12:48a 1:48a 2:48a

 

 

 

 

 

 

 

 

 

 

 

 

Farmers’ Almanac is also inviting its social media followers to document and share their observations and photos of the eclipse with them. Learn how to participate!

While the Farmers’ Almanac is mostly known for its advance weather forecasts, it has also been an important astronomy resource for over two centuries, including eclipses and full Moons.

For more information, visit www.FarmersAlmanac.com.

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