Tracing the 2017 Solar Eclipse

  • Released Wednesday, December 14th, 2016
  • Updated Wednesday, May 3rd, 2023 at 1:48PM
  • ID: 12412

When depicting an eclipse path, data visualizers have usually chosen to represent the moon's shadow as an oval. By bringing in a variety of NASA data sets, visualizer Ernie Wright has created a new and more accurate representation of the eclipse. For the first time, we are able to see that the moon's shadow is better represented as a polygon. This more complicated shape is based NASA's Lunar Reconnaissance Orbiter's view of the mountains and valleys that form the moon's jagged edge. By combining moon's terrain, heights of land forms on Earth, and the angle of the sun, Wright is able to show the eclipse path with the greatest accuracy to date.

The 2017 Path of Totality Read more about this map

The 2017 Path of Totality: Oblique View Read more about this map

This animation closely follows the Moon's umbra shadow as it passes over the United States during the August 21, 2017 total solar eclipse. Through the use of a number of NASA datasets, notably the global elevation maps from Lunar Reconnaissance Orbiter, the shape and location of the shadow is depicted with unprecedented accuracy.



Credits

Please give credit for this item to:
NASA's Goddard Space Flight Center


Series

This visualization can be found in the following series:

Datasets used in this visualization

Terra and Aqua BMNG (A.K.A. Blue Marble: Next Generation) (Collected with the MODIS sensor)

Credit: The Blue Marble data is courtesy of Reto Stockli (NASA/GSFC).

Dataset can be found at: http://earthobservatory.nasa.gov/Newsroom/BlueMarble/

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SRTM DEM (Collected with the SIR-C sensor)
LRO DEM (A.K.A. Digital Elevation Map) (Collected with the LOLA sensor)
LRO/SELENE SLDEM2015 (A.K.A. DIgital Elevation Model) (Collected with the LOLA/TC sensor)
Model

A digital elevation model of the Moon derived from the Lunar Orbiter Laser Altimeter and the SELENE Terrain Camera. See the description in Icarus. The data is here.

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DE421 (A.K.A. JPL DE421)
Ephemeris NASA/JPL

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