dylan wrote:
<snip
1 deg = 60 arcminutes
1/15 deg = 1 arcminute

surely...
1 deg = 60 arcminutes
1/60 deg = 1 arcminute ?

Yeah, that's for right ascension, not declination. A minute in right
ascension is not the same size as a minute in declination. Confusing,
ain't it?

1/60 deg = 1 arcminute ?
Is true for declination only.

- Canopus56