How to calculate geocentric transformation to heliocentric coordinates? I have Sun data (lon+lat+distance) in geocentric coordinates:

but I want to visualize in heliocentric way. How to calculate that?
Earth's position as seen from the Sun is directly opposite the Sun's position as seen from Earth, at the same distance.
In ecliptic coordinates,
$$ \begin{align}
l_\oplus &amp;= \lambda_\odot \pm 180^\circ \\
b_\oplus &amp;= -\beta_\odot \\
r_\oplus &amp;= \mathit{\Delta}_\odot
\end{align} $$
The heliocentric position of the Sun is always at the origin ($r=0$) by definition.