-- Constants --
local Planet = script.Parent
local Star = workspace.Sol.Head
local Distance = (Planet.Position-Star.Position).Magnitude
local ElipseX = 0
local ElipseZ = 0
local Speed = 0.30
local Position = Vector3.new(Distance+ElipseX,math.rad(0),Distance+ElipseZ)
local StartPos = math.deg(math.atan2((Planet.Position.Z - Star.Position.Z), (Planet.Position.X - Star.Position.X)))

-- Move object --
while true do
    for x = StartPos,360+StartPos,Speed do
        local Theta = math.rad(x)
        Planet.CFrame = Star.CFrame * CFrame.Angles(Position.Y,0,0) * CFrame.new(Position.X*math.cos(Theta),0,Position.Z*math.sin(Theta))
        wait()
    end
end