Function getCurrentRetrogradePeriod

getCurrentRetrogradePeriod(
body: CelestialBody,
jd: number,
): RetrogradePeriod | null
Check if a body is currently in a retrograde period.
Parameters
- body: CelestialBody
  Celestial body
- jd: number
  Julian Date
Returns RetrogradePeriod | null
The retrograde period if currently retrograde, null otherwise
- Defined in transits/retrograde-transits.ts:318