API Reference / declinationAspects · function

Function: declinationAspects()

function declinationAspects(
   engine, 
   bodies, 
   jd, 
   orb?): DeclinationPair[];

Parallels and contraparallels among a set of bodies at an instant: pairs whose declinations are equal (parallel) or equal and opposite (contraparallel) within orb — the declination analogue of conjunction and opposition.

Parameters

Parameter	Type	Default value	Description
`engine`	`Engine`	`undefined`	The engine used to evaluate positions.
`bodies`	`BodyId`[]	`undefined`	The bodies to compare.
`jd`	`number`	`undefined`	Julian Day (UT).
`orb`	`number`	`1.0`	Declination orb in degrees. Defaults to `1.0`.

Returns

DeclinationPair[]

DeclinationPairs { a, b, kind }, where kind is "parallel" or "contraparallel".

Start building

Quickstart →