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Heliocentric Ecliptic Rectangular to Geocentric Ecliptic Spherical coordinates
lon and lat are in radians; X, Y, Z and dist are in Astronomical Units
Pl is planet of interest;
PlX is Heliocentric X coord, PlY is Heliocentric Y coord, PlZ Heliocentric Z coord
Ea is Earth;
EaX is Helio X, EaY is Helio Y, EaZ is Helio z
geocentric longitude = ArcTangent2( (PlY-EaY) , (PlX-EaX) )
geocentric latitude = ArcSine( (PlZ-EaZ) / ( (PlX-EaX)^2 + (PlY-EaY)^2 + (PlZ-EaZ)^2)^1/2 )
geocentric distance = ((PlX-EaX)^2 + (PlY-EaY)^2 + (PlZ-EaZ)^2)^1/2
Note: ArcTangent2 function
Function ArcTangent2 (numerator, denominator)
'theta is the angle, in this case longitude ,
' 0 <= theta < (2 * 3.14159265358979323846)
If numerator = 0 Then
If denominator < 0 Then
theta = 3 * 3.14159265358979323846 / 2
Else
theta = 3.14159265358979323846 / 2
End If
Else
theta =ArcTangent(numerator/denominator)
'this is the conventional ArcTangent function
End If
If numerator < 0 Then
theta = theta + 3.14159265358979323846 / 2
ElseIf numerator > 0 And denominator < 0 Then
theta = theta + 2 * 3.14159265358979323846
End If
Return theta
End Function
What else can I help you with?
Was Copernican in the heliocentric or geocentric system?
The proposed the heliocentric system.
What is the synonym of geocentric?
i dont know at the moment......
Why has the heliocentric model been replaced with the geocentric model?
The heliocentric model is the one that replaces the geocentric model because the heliocentric model better described the solar system.
What is the difference between the geocentric view and the heliocentric view?
Geocentric: Earth is center of the solar system. Heliocentric: Sun is the centre of the solar system.
The heliocentric theory challenged the?
Geocentric theory
the heliocentric theory challenged the?
Geocentric theory
How does the heliocentric theory differ from the geocentric?
The heliocentric theory is the idea that planets rotate around the sun, where the geocentric theory said that everything orbited around Earth.
What was the prevailing belief when Christopher Columbus set sail heliocentric or geocentric?
At that time it was still geocentric.
Who contradicted the geocentric system?
The Heliocentric System. m.i.
Did Aristotle support the heilocentric and geocentric model?
Aristotle supported the geocentric model, which placed Earth at the center of the universe. He did not propose a heliocentric model with the Sun at the center. It was later astronomers like Copernicus who challenged the geocentric model in favor of a heliocentric one.
How does heliocentric theory differ from the geocentric model?
The heliocentric theory is the idea that planets rotate around the sun, where the geocentric theory said that everything orbited around Earth.
Is Uranus in the heliocentric or the geocentric system?
Uranus is in the heliocentric system like all the other planets. The geocentric system is now only of interest historically. It wasn't correct.
