lcplot – a program to plot light curves of variable stars
lcplot is a command-line program that plots light curves of variable stars using data from the American Association of Variable Star Observers (AAVSO).
lcplot is written in Perl 5. Apart from the Perl executable, lcplot also needs the Perl modules DateTime, Astro::Time, and LWP::Simple, and gnuplot as plotting engine.
To plot visual estimates and V band observations for a star during the last N days use:
lcplot.pl STAR CONSTELLATION NDAYS
To optionally highlight observations done by OBSERVER.
lcplot.pl STAR CONSTELLATION NDAYS OBSERVER
where OBSERVER is the AAVSO observer code
In both cases the result is a PNG file with the plot.
This will plot the last 200 days of observations for khi Cygni, without highlighting any observer:
lcplot.pl khi Cyg 200
It will produce a PNG image with name "Cyg-khi.png".
If we add to the same line an AAVSO observer code, for example, "OBS":
lcplot.pl khi Cyg 200 OBS
It will higlight observations contributed by observer OBS using blue crosses.