# NavList:

## A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding

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Re: Moon Venus Lunar - Interpretation of results
From: Sean C
Date: 2020 Jan 30, 22:05 -0800

Corrections to the math in my previous message:

2300 UT Calculated LD:
acos(sin(-2°34.7') · sin(-5°03.9') + cos(-2°34.7') · cos(-5°03.9') · cos(122°56.3' · 106°32.5')) = 16°32.8'

... should be:

2300 UT Calculated LD:
acos(sin(-2°34.7') · sin(-5°03.9') + cos(-2°34.7') · cos(-5°03.9') · cos(122°56.3' - 106°32.5')) = 16°32.8'

*Note that the multiplication sign in the last term should have been a minus sign.*

And the same for:

2100 UT Calculated LD:
acos(sin(-2°57.9') · sin(-5°06.5') + cos(-2°57.9') · cos(-5°06.5') · cos(92°56.8' · 77°22.0')) = 15°41.2'

... which should be:

2100 UT Calculated LD:
acos(sin(-2°57.9') · sin(-5°06.5') + cos(-2°57.9') · cos(-5°06.5') · cos(92°56.8' - 77°22.0')) = 15°41.2'

There is, however, no error in the results - just a simple confusion of symbols. My apologies for any confusion this may have caused.

-Sean C.

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