Add to collection
  • + Create new collection
  • Three images showing the two regions of a lunar eclipse.
    Rights: Tomruen CC BY-SA 4.0 Published 24 November 2017 Size: 570 KB Referencing Hub media

    Using different camera exposures, 1/80, 2/5 and 2 seconds, the two regions of a lunar eclipse can be seen. The outer penumbral shadow1 is where the sunlight is dimmed and the inner umbral shadow is where the much dimmer sunlight can be seen as a red colour as it reflects through the Earth’s atmosphere2.

    1. shadow: A dark image produced when an object blocks rays of light from reaching a surface.
    2. atmosphere: 1. The layer of gas around the Earth. 2. (atm) A non-SI unit of pressure equivalent to 101.325 kPa.
      Go to full glossary
      Download all

      shadow

    1. + Create new collection
    2. A dark image produced when an object blocks rays of light from reaching a surface.

      atmosphere

    3. + Create new collection
    4. 1. The layer of gas around the Earth.

      2. (atm) A non-SI unit of pressure equivalent to 101.325 kPa.