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ISSTHU Nov 12 · 12:12 AM · in 1d 6hCurated calendar

ISS Pre-Dawn Pass

A bright morning crossing before the sky begins to lighten.

When & where to look

Appears12:12 AMSouthwest horizon
Highest point12:14 AM48° elevation
Disappears12:17 AMEnters shadow / sets

Before sunrise, the station sweeps up from the southwest and crests at 48° while the ground below is still dark. Morning passes have a particular stillness to them — the same brilliant, unblinking light, this time against a sky on the edge of dawn.

Field notes

  • 01Set an alarm — the whole pass lasts about five minutes.
  • 02The station is sunlit while you are in shadow; that’s the twilight window at work.
  • 03A phone camera on night mode can capture the trail with a steady hand.
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