On Fri, 28 Aug 2009 07:01:24 -0400, Tom Francis - SWSports
wrote:

you can
use the stern light which is 135 degrees.

http://www.navcen.uscg.gov/mwv/navru...les/Rule23.htm

One point worth noting is that if you use the 135 degree stern light,
then you must have the forward facing mast head light.