wmMoonClock(1) on Linux
The text 5f7ca248a9b3, as Debian 5.0 (Lenny), Debian 4.0 (Etch), Debian 3.1 (Sarge), Debian 3.0 (Woody), Debian 2.2 (Potato) shipped it.
Dockable Moon Phase Clock
Flags it lists
-
-bc -
-dc -
-display -
-h -
-lat -
-lc -
-lon -
-low