HP Forums
Re: HP-41 Navigation PAC question - Printable Version

+- HP Forums (https://archived.hpcalc.org/museumforum)
+-- Forum: HP Museum Forums (https://archived.hpcalc.org/museumforum/forum-1.html)
+--- Forum: Old HP Forum Archives (https://archived.hpcalc.org/museumforum/forum-2.html)
+--- Thread: Re: HP-41 Navigation PAC question (/thread-212716.html)



Re: HP-41 Navigation PAC question - Timo - 02-27-2012

Hi Dave,

no need to check the algorithms, you are totally right of course. The difference is just some tenths of an arc second. Which is what I originaly wanted to type but somehow I screwed it up.

I've just checked the values again using todays position of SIRIUS. Here is the result:

Position of SIRIUS for February 27th 2012 at 00:00:00.

NavPack Result:
GHA 258.5747° = 258° 34.48'
Dec -16.7372° = 16° 44.23' S

Almanach Result:
GHA 258° 34.5'
Dec 16° 44,0' S

So all well to within a quarter of an arcsecond...

Sorry for causing the confusion. Regards,
Timo