I noticed that all important "Geoprojections" are available in projections for a spherical reference models: GeoProjectionData function;
1 - I am trying using the sinusoidal projection for astronomical data purposes. I want to use the frames of this projection to plot astronomical points in that map , using right ascension and declination as the coordinates, both in degrees.
In the link below, is a data that can be used, the format is { {RA,DEC, Velociy},....}. Just need the RA, DEC parameters.
a. I got the data in {Dec, Ra} :
p = Reverse[#] & /@ rad[[All, {1, 2}]]
b.then I transformed the parameters DEC RA, to sinusoidal numbers:
dat = GeoGridPosition[GeoPosition[p], "Sinusoidal"][[1]]
c. I did the following code:
GeoListPlot[dat, GeoRange -> All, GeoProjection -> "Sinusoidal",
GeoGridLines -> Automatic,
GeoGridLinesStyle -> Directive[Dashing[{0.0005, 1 - 0.9950}], Green],
GeoBackground -> Black, Frame -> True,
FrameLabel -> {"RA (\[Degree])", "DEC (\[Degree])"},
PlotMarkers -> Style[".", 10, Red]]
And the resulting plot is:
But no data was plotted.
And the ranges of Frame Axis are wrong: the horizontal axis has to be middle to left 0 90 180, and middle to right 0 (or 360) 270 180.
In the Vertical Axis: -90(bottom) 0(center) +90(top)
EDIT 1:
The link to wolfram math world about sinusoidal projection : Sinusoidal