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HP Forums › HP Museum Forums › Old HP Forum Archives v
Re: HP-41 Navigation PAC question

Linear Mode
Re: HP-41 Navigation PAC question


▼
Timo Offline
Unregistered
Posts: 59
Threads: 17
Joined: Feb 2010
#2
02-27-2012, 04:06 AM

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

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