Hubble image archive
Geometry of a Lunar Eclipse (Artist's Illustration)
This diagram explains the geometry of the lunar eclipse.When the Moon is entirely in the Earth's umbra (known as a total lunar eclipse or umbral eclipse), all sunlight reaching the lunar surface has been refracted or scattered through Earth's atmosphere. When the Moon is in Earth...
- Date
- Jan 1, 2020
- Mission
- Hubble Space Telescope
- Archive ID
- hubblesite-images-2020-30-4716-image
This diagram explains the geometry of the lunar eclipse.
When the Moon is entirely in the Earth's umbra (known as a total lunar eclipse or umbral eclipse), all sunlight reaching the lunar surface has been refracted or scattered through Earth's atmosphere. When the Moon is in Earth's penumbra (known as a penumbral eclipse), illumination comes from both direct sunlight and sunlight refracted and scattered through the planet's atmosphere. This process is similar to an exoplanet transit observation.
Credits
M. Kornmesser (ESA/Hubble), NASA, and ESAMore Images From This Period
Source
Image and source material are credited to the official mission archive linked below.
View on NASA.gov