Curiosity took this image of Earth on Jan. 31, 2014, 80 minutes after sunset.

enter image description here

Stellarium has the Earth >15° above the horizon 80 minutes after sunset on that day.

enter image description here With Stellarium indicating the magnitude of Earth is -1.15, can anything about the brightness (or darkness) of the sky be inferred from this information?

  • $\begingroup$ you really are keen on finding this out. $\endgroup$ – Topcode Mar 31 '20 at 3:17
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    $\begingroup$ Yes, I really am. $\endgroup$ – Bob516 Mar 31 '20 at 3:20
  • $\begingroup$ from your profile you are writing a sci fi book yes? From what ive gathered twilight is only a tad brighter than night. $\endgroup$ – Topcode Mar 31 '20 at 3:22

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