[time-nuts] Calculating sidereal time

[Steve Allen]

On Sat 2019-01-19T12:15:28-0800 Steve Allen hath writ:
> The most expedient place to find them are roughly pages B7 to B12 in a
> current Astronomical Almanac.  See for example
> https://babel.hathitrust.org/cgi/pt?id=uc1.31822038913307;view=1up;seq=116

Emphasizing one point, it has always been important to use expressions
for GMST and such things which are designed for use in the same
reference frame as the star catalog.  Current star catalogs do not use
an equinox as any kind of reference point, therefore any expression
for GMST does not simply correspond to the longitude-like coordinate
of a current star catalog.  GMST now coresponds to a new fictitious
point in the sky which is defined with much more complexity than in
the old days.

What exactly is the intended use case for this project?

--
Steve Allen                    <sla at ucolick.org>              WGS-84 (GPS)
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