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Subject: Re: [M]: Dumb question: 2000.0 or current date?
From: Bill Arnett
Reply To: mapug@shore.net
Date: Wed Aug 30 00:07:36 2000
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While you're here, how about checking out the
Astronomy Book
List ? |
> The LX200 firmware assumes an epoch of 2000. It will then precess the
> location to the current date.
I presume that it does the right thing for the objects in its internal
database and for the planets. But if in the year 2020 I enter a RA/Dec
value directly should it be entered in J2000 and expect it to be precessed
or should I enter it as an RA/Dec of the current date ("J2020" in this
example)?
I hope that by the time this is a practical problem, Meade will have long
since replaced the LX200 with something MUCH fancier :-)
--
Emerald Hills, CA USA http://nineplanets.org/
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