Re: Coordinates on mars

Paul Schlyter <pausch@xxxxxxx> wrote:
In article <44B829C6.9020707@xxxxxxxxxxxx>,
Bill Owen <wmo@xxxxxxxxxxxx> wrote:

Prai Jei wrote:
So what defines 0 deg longitude on Mars?


I don't think anyone has pointed this out yet - That crater was
selected for consistency with a much older definition (going
back a good century) that put zero longitude through the center
of the two forklike projections of the dark albedo feature
Sinus Meridiani (hence the name), which is the "pipestem"
extending from Syrtis Major.

Bill Keel
.