As for the Little Dipper, it is circumpolar â always above the horizon â as far south as the tropic of Cancer (23.5 degrees north latitude). Stars in the Big Dipper via EarthSky Facebook friend Ken Christison. He captured this photo on September 9, 2013.
dwell time (usually uncountable, plural dwell times) (chiefly engineering) The period of time that a system or element of a system remains in a given state. The drone has a dwell time of about six hours when operating from an in-theater airfield. The part needs a total dwell time in the autoclave of 95 minutes. (military) The duty time soldiers have at their domestic home base between foreign deployments.
Geosynchronous Orbits. Another solution to the dwell time problem is to have a satellite always sitting over the same location on the planet. The way we do this is to have the orbital period of the satellite exactly the same as the rotation period of the Earth, which is one day.