How do I spot the ISS?

Look for a steady bright point of light moving across the sky in a straight line over 2-6 minutes. It does not blink.

How bright is the ISS?

A good pass is magnitude -2 to -3, brighter than Sirius. It is easily visible even from city skies.

Visible passes last 2 to 7 minutes. Overhead passes are longer, low passes are shorter.

The ISS has to be lit by the Sun while your sky is dark. That window only opens a few times per week at any given location.

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When and where to spot the International Space Station

Build #026

Or enter manually:

ISS (Zarya)
Hubble Space Telescope
Tiangong (CSS)