Home > Astronomical Event, Eclipses, Ephemeris Program, Lunar Eclipse > 05/13/2022 – Ephemeris – Remember, there is going to be an eclipse of the Moon late Sunday night!

05/13/2022 – Ephemeris – Remember, there is going to be an eclipse of the Moon late Sunday night!

May 13, 2022

This is Bob Moler with Ephemeris for Friday, May 13th. Today the Sun will be up for 14 hours and 45 minutes, setting at 9:02, and it will rise tomorrow at 6:15. The Moon, 3 days before full, will set at 5:28 tomorrow morning.

There is going to be an eclipse of the Moon running from late Sunday night into the early Monday morning hours. That’s the night of May 15/16. By 10:30 pm, there will appear a noticeable “bite” out of the lower left edge of the Moon as it enters the Earth’s inner shadow, called the umbra. The shadow will creep across the Moon for the next hour. And by 11:30 the Moon is completely immersed in the Earth’s inner shadow. By now, one will notice that the shadow is not completely black. The Moon usually has a dim reddish hue caused by all the simultaneous sunrises and sunsets around the Earth. This is the total phase of the eclipse, which will last until almost 1 am. The Moon will slowly exit the inner shadow by 2 am.

The astronomical event times given are for the Traverse City/Interlochen area of Michigan (EDT, UT – 4 hours). They may be different for your location.


05-16-22 Lunar eclipse diagram2

The eclipse occurs on the 16th for Universal Time, because the eclipse events take place after 8 pm EDT on the 15th. The Moon travels through the Earth’s shadow from right to left. What are seen are points of contact with the shadow and mid-eclipse. From Five Millennium Canon of Lunar Eclipses (Espenak & Meeus) NASA, with additions.

Contact times are labeled P1, U1, U2, U3, U4, and P4. P2 and P3 are omitted because they are synonymous with U1 and U4, respectively. Times are EDT unless noted:

  • P1 – 9:32:07 pm (1:32:07 UT) Enter the penumbra (unseen). By about 10 pm, the duskiness on the left edge of the moon will start to be noticeable. Wearing sunglasses to dim the bright Moon will help show the effect.
  • U1 – 10:27:53 pm (2:27:53 UT) Enter the umbra (partial eclipse begins).
  • U2 – 11:29:03 pm (3:29:03 UT) Totality begins.
  • Mid-eclipse 12:11:28.8 am (4:11:28.8 UT)
  • U3 – 12:53:56 am (4:53:56 UT) Totality ends, the egress partial phase begins.
  • U4 – 1:55:07 am (5:55:07 UT) Partial phase ends. The Moon’s upper right edge should appear dusky for the next half hour or so.
  • P4 – 2:50:48 am (6:50:48 UT) Penumbral phase ends (unseen).
Surveyor3 solar eclipse

Solar eclipse by the Earth as photographed by Surveyor 3, which had landed on the Moon, April 24, 1967. The Earth was seeing a lunar eclipse at the time. Light seeps into the Earth’s shadow at the Moon’s distance due to atmospheric refraction. The amount of light depends on the atmospheric conditions at the time. Great volcanic eruptions can cause a very dark, nearly invisible, eclipsed Moon. Credit: NASA.

Update 7:30 pm, May 15th

In note for P1 time: Expected actual visibility of penumbral shadow is changed to 10 pm (2 hr UT).

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