The LX200 firmware assumes an epoch of 2000. It will then precess the location to the current date.

Ralph



"Michael A. Covington" wrote:

> Are the right ascensions and declinations used by the LX200's computer those
> of epoch J2000.0 or those of the current date?
>
> Right now it doesn't make a difference, but in seven years the two will
> differ by a tenth of a degree and will noticeably affect pointing accuracy.
>
> I *presume* they are epoch 2000.0, but can someone confirm this? (Quick
> experiment, which I'd try if the sky were clear: Get everything set up, then
> put in a date 72 years in the future and see if everything shifts by a
> degree.)
>
> Michael A. Covington / AI Center / The University of Georgia
> http://www.ai.uga.edu/~mc http://www.CovingtonInnovations.com <><

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