Compared to older, high-orbit communications satellites, why do Starlink units appear to move faster across the sky?

Answer

They orbit in Low Earth Orbit (LEO), which is significantly closer to the planet

Because Starlink satellites orbit much closer (around 550 km) than traditional geosynchronous satellites, they cover more angular distance relative to the observer in the same amount of time.

Compared to older, high-orbit communications satellites, why do Starlink units appear to move faster across the sky?

#Videos

Starlink satellites, the string of lights in the night sky. - YouTube

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