Hi Matt,
Looks as if the MPC has switched the RA/dec format default from
"truncated sexagesimal" (HH MM.MM, DD MM.M) to "full sexagesimal"
(HH MM SS, DD MM SS). Aside from that, nothing has been changed.
A before-and-after comparison:
Date UT R.A. (J2000) Decl. Elong. V Motion
h "/min P.A.
2000 12 23 19 13 23.21 +10 40.3 77.9 17.6 6.70 027.5
2000 12 23 19 13 23 13 +10 40 18 77.9 17.6 6.70 027.5
You can still select the format you want when asking NEOCP for an
ephemeris, so it's not absolutely necessary to change anything in Guide.
But having to remember to select that button could, I expect, get to
be annoying after a while. So I've updated the relevant file for Guide,
http://www.projectpluto.com/neocp.zip
Download this and unZIP it in your Guide directory, and all should
be well again.
Sexagesimal notation was created by mutant Babylonian mathematicians
with thirty fingers on each hand. They died out long ago, but their
twisted legacy lives on to torture astronomers everywhere.
Oliver Kloes has just sent me an updated version of his extrasolar
planet dataset, including planets found around three more stars. The
file is discussed at and downloadable from:
http://www.projectpluto.com/extras.htm#planet_systems
A happy winter solstice holiday to all!
-- Bill