Finds the hour angle of a body for a given observer and time.
The hour angle of a celestial body indicates its position in the sky with respect
to the Earth's rotation. The hour angle depends on the location of the observer on the Earth.
The hour angle is 0 when the body's center reaches its highest angle above the horizon in a given day.
The hour angle increases by 1 unit for every sidereal hour that passes after that point, up
to 24 sidereal hours when it reaches the highest point again. So the hour angle indicates
the number of hours that have passed since the most recent time that the body has culminated,
or reached its highest point.
This function returns the hour angle of the body as seen at the given time and geogrpahic location.
The hour angle is a number in the half-open range [0, 24).
Finds the hour angle of a body for a given observer and time.
The hour angle of a celestial body indicates its position in the sky with respect to the Earth's rotation. The hour angle depends on the location of the observer on the Earth. The hour angle is 0 when the body's center reaches its highest angle above the horizon in a given day. The hour angle increases by 1 unit for every sidereal hour that passes after that point, up to 24 sidereal hours when it reaches the highest point again. So the hour angle indicates the number of hours that have passed since the most recent time that the body has culminated, or reached its highest point.
This function returns the hour angle of the body as seen at the given time and geogrpahic location. The hour angle is a number in the half-open range [0, 24).