Planets and Moons  ID: 4902

May 26, 2021 Total Lunar Eclipse: Telescopic View


8:30:00 — 13:59:50
UT Hour: Minute: Second:

The total lunar eclipse of May 26, 2021 is the first in nearly two and a half years. It occurs within hours of the closest perigee of the year, making the Moon appear about 7% larger than average. The total phase will be visible near moonset in the western United States and Canada, all of Mexico, most of Central America and Equador, western Peru, and southern Chile and Argentina. Totality occurs just after moonrise along the Asian Pacific Rim. The eclipse can be seen in its entirety in eastern Australia, New Zealand, and the Pacific Islands, including Hawaii.

The sublunar point, the last line of the table above, is the point on the Earth's surface where the Moon is directly overhead. It's also the center of the hemisphere of the Earth where the eclipse is visible. The closer you are to that location, the higher the Moon will be in your sky. The eclipse percentage in the table is the fraction of the Moon covered by the Earth's umbra, the part of its shadow in which the Sun is completely blocked. The part of the shadow in which the Sun is only partially blocked is called the penumbra.

The animations on this page run from 8:30:00 to 13:59:50 UTC, which is also the valid range of times for this Dial-a-Moon. The exposure setting of the virtual camera changes around totality in order to capture the wide dynamic range of the eclipse. The parts of the Moon outside the umbra during the partial phases are almost as bright as an ordinary full moon, making the obstructed parts appear nearly black. But during totality, our eyes adjust and reveal a range of hues painted on the Moon by all of Earth's sunrises and sunsets.

All phases of a lunar eclipse are safe to view, both with your naked eye and an unfiltered telescope.



Visualization Credits

Ernie Wright (USRA): Lead Visualizer
David Ladd (USRA): Producer
Noah Petro (NASA/GSFC): Scientist
Laurence Schuler (ADNET): Technical Support
Ian Jones (ADNET): Technical Support
Please give credit for this item to:
NASA's Scientific Visualization Studio

Short URL to share this page:

LRO (Lunar Reconnaissance Orbiter)

Data Used:
LRO/LOLA/Digital Elevation Map also referred to as: DEM
JPL DE421 also referred to as: DE421
Ephemeris - NASA/JPL
Lunar Reconnaissance Orbiter/LRO Camera/Natural Color Hapke Normalized WAC Mosaic also referred to as: LROC WAC Color Mosaic
Mosaic - Arizona State University
This natural-color global mosaic is based on the 'Hapke normalized' mosaic from LRO's wide-angle camera. The data has been gamma corrected, white balanced, and range adjusted to more closely match human vision.
Note: While we identify the data sets used in these visualizations, we do not store any further details nor the data sets themselves on our site.

This item is part of these series:
The Moon
LRO - Animations

SVS >> Lunar
SVS >> Moon
SVS >> Hyperwall
SVS >> Lunar Reconnaissance Orbiter
SVS >> Eclipse
SVS >> Lunar Eclipse
NASA Science >> Planets and Moons