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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Ho 208 question
From: Stan K
Date: 2014 Feb 24, 21:29 -0500
From: Stan K
Date: 2014 Feb 24, 21:29 -0500
Is there a 360º60' column. Aren't the columns in whole degrees only? ...358, 359, 360?
-----Original Message-----
From: Brad Morris <bradley.r.morris@gmail.com>
To: slk1000 <slk1000@aol.com>
Sent: Mon, Feb 24, 2014 8:57 pm
Subject: [NavList] Re: Ho 208 question
From: Brad Morris <bradley.r.morris@gmail.com>
To: slk1000 <slk1000@aol.com>
Sent: Mon, Feb 24, 2014 8:57 pm
Subject: [NavList] Re: Ho 208 question
Randall
Shouldn't your LHA column be 359°60'?
You are using 360° 60' (one degree too much)
Brad
On Feb 24, 2014 11:12 AM, "Randall Morrow" <randall.f.morrow{at}kp.org> wrote:
The results have improved for my use of Ho 208 but an ususual case is giveing me trouble.
With a GHA of 478* 49.8 and assumed Lon of 118* 49.8 the LHA is 360 or zero.
My circa 1940 .pdf does not have a zero LHA column. If I use 360*60.0' the results are way off. Plugging my sight data into the Ho 208 calculator called "Celestial Tools" I got an intercept of over 1000 miles.Sight data:
Sirius
Date 22 Feb
Time 20-29-06 PDT
ZD +8
Hs 37*57.5 (Already corrected for AH use)
SHA 258* 33.21
GHA Aries 212* 58.5
Ref. -1.3
IC -0.4
USNO reduction shows Hc 37*56.1 and intercept of 0.3As a post script, does anyone have a .pdf version of Ho 208 that has the extra column headings at the top and bottom for 90-180, 180-270 etc.?
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