Everything You Need to Know About Tonight’s Lunar Eclipse

September 27

Tonight’s total lunar eclipse begins at 8:07 pm CDT, when the Moon first enters the dark part of the Earth’s shadow. At 9:11 pm CDT, the Moon is completely within Earth’s shadow. At 10:23 pm CDT, the Moon begins to emerge from behind Earth’s shadow. At 11:27 pm CDT, the eclipse ends as the Moon finishes passing through Earth’s shadow. That is,

Partial umbral eclipse begins: 8:07 p.m. CDT
Total eclipse begins: 9:11 p.m. CDT
Greatest eclipse: 9:47 p.m. CDT
Total eclipse ends: 10:23 p.m. CDT
Partial eclipse ends: 11:27 p.m. CDT

The entire eclipse is visible for the eastern half of North America. For the western half of North America, the Moon will already be in eclipse as it rises above the eastern horizon.

Coincidentally, tonight’s Full Moon is also a so-called supermoon; the Moon is very near to the point in its orbit closest to Earth making it appear larger than average.

This eclipse is the fourth in a series of four, spaced roughly six months apart: April 2014, October 2014, April 2015, and September 2015. The next total lunar eclipse visible in Chicago won’t occur until January 2018, and that one won’t last long as the total eclipse will begin just 10 minutes before the Moon sets. So get out there and enjoy it!

For more, read Earthsky.org’s lunar eclipse page.

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