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measures.separation - Function

	Package	general
	Module	measures
	Tool	measures

get separation angle between two directions

Synopsis
separation(m1, m2)

Arguments

m1	in	direction of source
		Allowed:	direction measure
m2	in	direction of other source
		Allowed:	direction measure

Returns
position angle as angle quantity

Description
separation will give the separation of a direction from another as an angle.

Example

- a:=dm.direction('j2000','0deg','70deg');
- b:=dm.direction('j2000','0deg','80deg'); 
- dm.separation(a,b)
[value=10, unit=deg] 
- tim := dm.epoch('utc','today')              # set the time
- dm.doframe(tim)
T 
- pos := dm.observatory('ATCA')               # set where
- dm.doframe(pos)
T 
- c:=dm.measure(b,'azel')                     # try with different type
- dm.separation(a,c)
[value=10, unit=deg]