The observation of a planet incorporates many features, not just their wandering motion against the direct motion of the Sun through the ecliptic plane but also the variations in the time they took to make a circuit of the constellations, at least in the Ptolemaic framework-

" Moreover, we see the other five planets also retrograde at times,
and stationary at either end [of the regression]. And whereas the Sun
always advances along its own direct path, they wander in various
ways, straying sometimes to the south and sometimes to the north; that
is why they are called "planets" [wanderers]. " Copernicus

This immediately removes many contributors who rely on the more recent RA/Dec framework as they assign a wandering motion to the Sun also and at variance to the working principles of the first Sun-centred solar system researchers.

http://astro.dur.ac.uk/~ams/users/solar_year.gif

I would have really nothing to say about the debacle which attempted to isolate a planet by size as it is best consigned to an indulgence by those who tried to conjure an imaginary problem into existence and made it worse for everyone and an awful dishonour to our era.

The wandering motions of the planets can now be accounted for in two distinct ways depending on whether the planets are moving faster or slower than the Earth in a Sun-centred system.

" Moreover, we see the other five planets also retrograde at times,
and stationary at either end [of the regression]. And whereas the Sun
always advances along its own direct path, they wander in various
ways, straying sometimes to the south and sometimes to the north; that
is why they are called "planets" [wanderers]. " Copernicus

https://i.stack.imgur.com/5LdTe.gif

https://www.exploratorium.edu/venus/question1.html

The orbital plane of the Earth is a lot shallower to the Sun's rotational Equator, than that of Venus, hence the current steepness of Venus as it overtakes our slower moving Earth compared to the flatter orbital trajectory in 2012 when it passed directly in front of the Sun at a point of intersection. While Venus overtakes us every 584 days or about every 18 months, the rare transit event won't happen until next century, although people can still enjoy the event more through the artificial solar eclipse provided by the satellite even if it doesn't exactly follow the Earth's orbital plane-

https://sol24.net/data/html/SOHO/C3/96H/VIDEO/

https://www.youtube.com/watch?v=w2uCtot1aDg

I have come to appreciate the effort it took to recover the SOHO satellite considering what it continues to transmit. I only wish a similar effort was made with interpreting what it displays-

https://sohowww.nascom.nasa.gov/operations/Recovery/aerospace.pdf