Often you want to display some data in its geographic context.  You can produce a range of simple maps in R with the maps and mapdata packages.

For example, to show the location of the IMAS Sandy Bay on a map of Australia

library(maps)
library(mapdata)
map("worldHires",xlim=c(110,160),ylim=c(-45,-10))
points(147.32785,-42.901103,pch=16,col="red")

IMAS Sandy Bay

If you need an alternate projection, use the mapproj package.  To show the location of the IMAS projection on a stereographic projection about the pole, rotated to place Tasmania at the top of the plot

library(maps)
library(mapdata)
library(mapproj)
proj <- "stereographic"
orient <- c(-90,147.32,0)
map("worldHires",projection=proj,orientation=orient,ylim=c(-90,-40))
points(mapproject(147.32785,-42.901103,
                  projection=proj,orientation=orient),pch=16,col="red")

IMAS Sandy Bay