Is there a simple open-source, command-line program that can show the sunrise and sunset times at a given date and location, and perhaps moon and planet data as well?
Browsing the Debian package database and Google searches, I can't find anything relevant. This surprises me — considering the number of people who are both astronomy geeks and unix geeks, I'd have expected a de-facto-standard
sunrise(1) (or perhaps
I am not interested in more complex programs that incidentally perform the calculations, such as sky maps (celestia, kstars, starplot, stellarium), earth maps (sunclock,
xplanet), calendars/agendas (emacs, remind), clocks (glunarclock,
wmsun), tide almanachs (xtide). There is perhaps
aa (astronomical-almanac), but I don't see a simple way of asking it what time the sun will rise on this date at these longitude and latitude.
What did I miss?