[AZ-Observing] Re: MESSIER 2 declination error

AJ,
Tonight I will check this out on my 16" scope.
Stan

AJ Crayon wrote:

>Has anyone had problems locating M2 with digital setting circles or a GoTo 
>system?  This involves any of the electronic systems.
>I have run across declination errors with this entry on the XP4 Flash Sky 
>Commander digital setting circles and on Orions SynScan GoTo system.  Reason 
>is because the declination is -0° 49' and the way computer hardware handles 
>-0.  Turns out most computers convert -0 to +0 resulting in incorrect 
>calculations.
>
>I corrected my version of XP4 with an update the the Messier catalog when this 
>was discovered some time ago.  I have just found the problem in the SynScan 
>system and notified Orion this morning.
>
>So, I ask, has anyone else had problems with their system finding M2?
>
>AJ Crayon
>Phoenix, AZ
>
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