For the purposes of determining factors relating to planetary speed, the following methods are used to determine their typical speeds...

The Moon - speed based on a lunar orbital period of 27.321586481 days

The Sun, Earth, Vulcan, Mercury Venus - speed based on a solar orbital period of 365.24219907 days

The North and South Nodes - speed based on a nodal orbital period of 18.6 years

The Chart Angles - Earth's rate of diurnal rotation (360.98564736 deg/day)

Black Moon Lilith - speed based on an orbital period of 3231.45 days

White Moon Selena - speed based on an orbital period of 2556.75 days

All Other Planets - their current heliocentric orbital speed

These typical speeds are used to determine whether planets are

Slow - if speed is less than typical

Fast -  if speed is greater than or equal to typical

Stationary - if speed is below the percentage value specified by the user in relation to the typical speed (but only if this stationary option has been selected).

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