[AZ-Observing] Re: [sac-forum] Re: Precession Computations
- From: "Bill VanOrden" <beevo1@xxxxxxx>
- To: <sac-forum@xxxxxxxxxxxxx>, <az-observing@xxxxxxxxxxxxx>
- Date: Sat, 28 Apr 2012 10:10:40 -0700
If you want the code, email me off list and I will supply it.
Beevo
From: sac-forum-bounce@xxxxxxxxxxxxx [mailto:sac-forum-bounce@xxxxxxxxxxxxx]
On Behalf Of Bill VanOrden
Sent: Saturday, April 28, 2012 10:00 AM
To: sac-forum@xxxxxxxxxxxxx; az-observing@xxxxxxxxxxxxx
Subject: [sac-forum] Re: Precession Computations
Here's what I used in a program, the source was the book Ken Sikes cited.
'Calculations in this subroutine were derived from Page 134 - 136
'Astronomical Algorithms (2nd Edition) by Jean Meeus
'Published by Willman-Bell ISBN 0-943396-61-1
'1998 (with Corrections as of the printing date June 15th, 2005
From: sac-forum-bounce@xxxxxxxxxxxxx [mailto:sac-forum-bounce@xxxxxxxxxxxxx]
On Behalf Of Richard Harshaw
Sent: Saturday, April 28, 2012 7:39 AM
To: az-observing@xxxxxxxxxxxxx; sac-forum@xxxxxxxxxxxxx
Subject: [sac-forum] Precession Computations
Does anyone in this august group know the formula, transformation or
algorithm to determine the vectors for precession for any point on the sky
using equatorial coordinates and a given date?
Richard Harshaw
Cave Creek, Arizona
"If we knew what it was we were doing, it would not be called research,
would it?"
Albert Einstein
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