ISS, Penumbra

The ISS passing into Earth's penumbra

Counter-intuitively, the ISS is moving from right (west) to left (east) in this image. As it passed over Ireland it passed behind the Earth and into the planet’s shadow, or [[penumbra]]. The more you know.


Mark Grealish

Dashing brigand, handsome rapscallion, father, crazy cat lady and the world's greatest lover and liar, living in Dublin, Ireland.



Have your say on 'ISS, Penumbra'

  • Shane Murphy on

    Nice one Mark. Looks like you caught Iron Man flying across the sky.
    Was that about 20 sec exposure?


  • Elliot on

    Ooh! You’ve taught me something…coolio.


  • Mark on

    Win! The most useful thing I taught anyone before now was to coach my niece to say “Why?” when questioned.


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