Download or view saturnRingAngle.frink in plain text format
/** Simple program to calculate Saturn's ring angle to see if they really turn
edge-on to Earth twice in 2025. */
use planets.frink
use Grid.frink
start = #2025#
end = #2026#
p = new polyline
for d = start to end step 1 day
{
[deltaU, B, P, a, b] = Planet.SaturnEphemeris[d]
println["$d\t$a\t$b"]
p.addPoint[JD[d], -b]
}
g = new graphics
g.add[p]
//grid = new Grid
//grid.auto[g]
//g.add[grid.getGrid[]]
g.write["SaturnRingAngle2025.png",1000,1000]
g.show[]
Download or view saturnRingAngle.frink in plain text format
This is a program written in the programming language Frink.
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Alan Eliasen was born 19975 days, 22 hours, 30 minutes ago.