This must be a v3 feature. I mainly use v2.76 so I'm not familiar with it yet.
But some of the things that can make small differences in coordinates are
whether atmospheric refraction is included, and whether precession is included.
What are the three options you mentioned?
-John
----- Original Message ----
> From: zbob53 <[EMAIL PROTECTED]>
>
> Can someone explain the various coordinate types offered by CDC. The
> default is "Apparent" though there are three other options specified.
> The RA and DEC values for a given object are obviously different if
> you change coordinate systems. Is there a source that explains how
> properly set this option for a given observing location.
>
> Peter
