Wednesday, August 12, 2020
US flag

Total lunar eclipse to occur on Sept. 27

A total eclipse of the moon will begin on Sunday night, September 27, 2015, peak at 10:47 PM Eastern Daylight Time, and end at 12:27 AM Monday morning, scientists at NASA‘s Goddard Space Flight Center in Greenbelt, Md., report.


Approximate circumstances of the eclipse (from NASA / Goddard)

Circumstances of the lunar eclipse:

  • Partial umbral eclipse begins (U1): 9:07:12 PM EDT on September 27
  • Total eclipse begins (U2): 10:11:11 PM EDT
  • Greatest eclipse: 10:47:09.1 PM EDT
  • Total eclipse ends (U3): 11:23:07 PM EDT
  • Partial eclipse ends (U4): 12:27:06 AM EDT on September 28

The entire eclipse (P1–P4) will be visible in Maryland and Illinois, while people in the westernmost states will see it at moonrise Sunday evening. The eclipse will be visible in the early morning hours in Europe, Africa, and the Middle East, and won’t be visible at all from Australia or China. Watch it on NASA-TV, beginning at 8 PM Eastern.

Blood moon

The moon will be a harvest moon for folks in the Northern Hemisphere, as it is the full moon that occurs nearest the autumnal equinox.

The eclipse also marks the fourth and final total eclipse of a lunar tetrad—four straight eclipses at intervals of six lunar months. The other eclipses in this lunar tetrad occurred on April 15, 2014; October 8, 2014; and April 4, 2015.

Imagine if you were standing on the moon. What would you see? Watch this video and describe what would happen in your sky.

Paul Katula is the executive editor of the Voxitatis Research Foundation, which publishes this blog. For more information, see the About page.

Recent posts

Voxitatis congratulates the COVID Class of 2020

2020 is unique and, for high school graduates, different from anything they've seen. Proms, spring sports, & many graduation ceremonies are cancelled. Time for something new.

Vertical addition (m3.nbt.2) math practice

3rd grade, numbers and operations in base 10, 2, 3-digit vertical addition practice problem

Rubber ducks (m3.oa.1) math practice

3rd grade, operational and algebraic thinking, 1, rubber ducky modeling practice problem

Distance learning begins as Covid-19 thrives

What we learn during & from coronavirus, a challenging & imminent crisis, will provide insights into so many aspects of our lives.

Calif. h.s. choir sings with social distancing

Performances with the assistance of technology can spread inspiration across the globe even as the coronavirus spreads illness and disease.

Families plan to stay healthy during closures

Although schools are doing what they can to keep students learning and healthy during the coronavirus outbreak, that duty now shifts to parents.

Illinois temporarily closes all schools

IL schools will be closed on Tuesday, March 17, through at least March 30. Schools in 18 states are now closed due to coronavirus.

Coronavirus closures & cancellations

Many schools are closed and sports tournaments cancelled across America during what the president called a national emergency: coronavirus.

Coronavirus closes schools in Seattle

The coronavirus pandemic has caused colleges to cancel classes, and now Seattle Public Schools became the nation's first large district to cancel classes due to the virus.

Most detailed images ever of the sun

A new telescope at the National Solar Observatory snapped the most detailed pictures of the sun's surface we have ever seen.

Feds boost Bay funding

Restoration efforts in the Chesapeake Bay watershed received a boost in federal funding in the budget Congress passed last month.