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Celestial Navigation tools for polaris location


 

In spreadsheet by pmh099 (Peter Hakel)

website

github 

Astron

USNO Web clone for moon, planets, bright stars, polaris, which is provided by Reed Navigation

skycalc notes

JB astronomical almanac

Nautical Almanac 2010 by USNO

hgus1294

HMNAO 

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IAU in 2000 resolution:

Why astronomers are suspicious:

sidereal time seems to have gone...

... and so have equinox and ecliptic: why?

... the new zero point for right ascension is something elusive called a "non-rotating origin"


 

 The History of Celestial Navigation: Rise of the Royal Observatory and Nautical Almanacs

 slideplayer 

computer nautical almanac Toyama maritime college,  Japan 2001

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