PhysLink.com Logo

Question

Is it possible to place a satellite in geostationary orbit over the north pole?
Asked by: Ken Bruckart

Answer

Clipart of a satellite orbiting the EarthNo, a geostationary orbit must be in the plane of the Earth's equator. That way, by matching its orbital speed with the speed of a point on the equator, the moving satellite appears to be stationary over that point. Any other orbit would have the satellite appear to drift above and below the equator during the course of a day.

A geosynchronous orbit matches the Earth's rotational speed, but only allows a satellite to appear over the same spot once per day. Depending on your stretch of that definition, a satellite in a perfect polar orbit would pass over each pole once per day and might be called 'geosynchronous', but like the time of day at the poles the terminology becomes ambiguous.
Answered by: Paul Walorski, B.A., Part-time Physics/Astronomy Instructor


Science Quote

'There are two ways to live your life. One is as though nothing is a miracle. The other is as though everything is a miracle.'

Albert Einstein
(1879-1955)


All rights reserved. © Copyright '1995-'2017 PhysLink.com