Categories: EclipsesMissionsMoon

How LRO Plans to Watch the Lunar Eclipse from the Moon

What will the June 15th lunar eclipse look like from the Moon itself? Luckily, we’ve got the Lunar Reconnaissance Orbiter circling the Moon, and we can find out. However, most of the instruments on LRO will be powering down during the eclipse, but one instrument, called Diviner, will stay on. “It will be like a nap with one eye open!” the LRO spacecraft said on Facebook. The Diviner Lunar Radiometer instrument will record how quickly different areas on the moon’s day side cool off during the eclipse. Since large boulders cool more slowly than a fine-grained or dusty surface, Diviner will be able to see what areas are covered with boulders and what regions are blanketed by dust.

The eclipse begins at about 17:24 Universal Time (UT), will be darkest from around 19:22 UT to 21:02 UT, and ends a bit after 23:00 UT. (For more info on the eclipse, see our preview article to find out how you can watch it live — in person or online.) During this eclipse, the moon’s orbital path will take it close to the center of the darkest part of Earth’s shadow, called the umbra, so the deepest part of the eclipse will last a long time — just over an hour and 40 minutes.

“This is an unprecedented opportunity to learn more about the uppermost few millimeters of the moon,” said Diviner Principal Investigator David Paige of the University of California, Los Angeles. “Diviner plans to operate continuously during the entire eclipse period, targeting ten specific regions. The ten sites represent a diverse selection of lunar terrains. Some consist of fine dust, others are rocky, and there are a variety of compositions including dark, iron-rich lunar maria and light, iron-poor lunar highlands. Diviner will target these features before, during, and after the eclipse, which will allow us to observe how these different surfaces respond to the sudden drop in temperature.”

Watch the video for more information, or read more about Diviner and the eclipse at NASA’s LRO website.

You can follow Universe Today senior editor Nancy Atkinson on Twitter: @Nancy_A. Follow Universe Today for the latest space and astronomy news on Twitter @universetoday and on Facebook.

Nancy Atkinson

Nancy has been with Universe Today since 2004, and has published over 6,000 articles on space exploration, astronomy, science and technology. She is the author of two books: "Eight Years to the Moon: the History of the Apollo Missions," (2019) which shares the stories of 60 engineers and scientists who worked behind the scenes to make landing on the Moon possible; and "Incredible Stories from Space: A Behind-the-Scenes Look at the Missions Changing Our View of the Cosmos" (2016) tells the stories of those who work on NASA's robotic missions to explore the Solar System and beyond. Follow Nancy on Twitter at https://twitter.com/Nancy_A and and Instagram at and https://www.instagram.com/nancyatkinson_ut/

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