THE SOUTHWORTH PLANETARIUM
70 Falmouth Street      Portland, Maine 04103
(207) 780-4249      usm.maine.edu/planet
43.6667° N    70.2667° W
Founded January 1970
2022-2023: X
Sunrise: 6:17 a.m.
Sunset: 6:57 p.m.
Civil twilight ends: 7:26 p.m.
Sun's host constellation: Leo the Lion
Moon phase: Waning gibbous (93% illuminated)
Moonrise: 8:15 p.m.
Moonset: 9:50 a.m. (9/13/22)
Julian date: 2459835.16
"One person's craziness is another person's reality."
-Tim Burton

THE DAILY ASTRONOMER
Monday, September 12, 2022
November's Lunar Eclipse

[image: Lunar_eclipse_chart_close-2022nov08.png]
The moon's path during the November 8, 2022 lunar eclipse.
The inner circle represents the umbra, Earth's inner shadow.  The outer
circle represents the penumbra, Earth's fainter outer shadow.

First, the good news!
We're going to experience a total lunar eclipse on November 8, 2022. A
total lunar eclipse occurs when the full moon slides sweetly into Earth's
dark inner shadow, called the *umbra*. When fully immersed the eclipsed
moon often glows reddish or, if the gods are in a particularly affable
mood, copper-orange. A total lunar eclipse occurred on May 15th,but, as the
sky was lamentably overcast, we couldn't see it. So, it happened, but we
didn't experience it. C'est la vie!

Now, the less than good news,
The eclipse will start in the wee hours, when even the most fanatical
skywatchers have already capped their scopes and slid sweetly into their
receiving beds. Mind you, such a spectacular event will likely induce them
and even the slightly less obsessive universe admirer to eschew their
blankets and remain outside.

Second, more good news!
We'll at least see the moon completely immersed in the umbra before the
moon sets!

Second, the less than good news
When the eclipsed moon is low along the horizon, it tends to vanish,
rendering it somewhat difficult to observe. Although we'll likely see the
first moments of totality, we won't see the middle or final moments.

Let's proceed to the time-line. Although these times are specific to
Portland, the times are other locations nearby will be nearly the same.


*PENUMBRAL ECLIPSE BEGINS * - 3:02:15 a.m.
Nothing to see here. The moon first touches the *penumbra*, the outer part
of Earth's shadow. The resultant brightness diminishment is so slight as to
be unobservable. While those in possession of superhuman eyesight might be
able to notice an obscuration, we mortals would just look upon a full moon
as it, well, always appears.

*PARTIAL ECLIPSE BEGINS - *4:09:12 a.m.
This is what you'll likely want to see: the moon first touches the umbra.
Now, you can observe the curved shadow moving across the bright lunar disc.
During the next hour and seven minutes, the moon will move progressively
deeper into the umbra until it is completely covered.

*TOTAL ECLIPSE BEGINS * - 5:16:39 a.m.
Totality, the time period in which the moon is completely inside the umbra,
begins.

*MAXIMUM ECLIPSE* - 5:59:11 a.m.
The moment when the moon passes through the deepest part of the inner
shadow.

*MOON SET * - 6:32 a.m.
The moon sets from our perspective. Do note, however, that the moon will
likely be difficult to see during most of totality, however, due to its low
position along the western horizon.

We'll include the rest of the timetable for completeness:

*TOTALITY ENDS - *6:41:36 a.m.
The moon starts to leave the umbra

*PARTIAL ECLIPSE ENDS - *7:49:03 a.m.
The moon leaves the umbra. The scarcely visible penumbral eclipse continues

*PENUMBRAL ECLIPSE ENDS - *8:56:09 a.m.
The eclipse ends.

Provided the sky is clear, one will be able to at least watch the first
phases of this total lunar eclipse. Although the timing might not prove
convenient, one should venture outside that morning to snatch at least a
quick glimpse. Our next partial lunar eclipse (for us) occurs on September
18, 2024. The next total lunar eclipse will happen on March 15, 2025!

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