The protagonist in my SF story is on an asteroid gazing towards the Sun and inner planets. For purposes of the narrative he needs to locate the position of the earth at different times in its orbit.
He is standing on the asteroid, about 2.5 Astronomical Units out, in the asteroid belt, viewing towards the Sun
Since he’s basically outside looking in with regard to the Earth, wouldn’t all the inner planets line up in a straight line passing through the sun?
Wouldn’t the Earth (and Mercury, Venus, and Mars) move back and forth along that imaginary line (red arrows), their location along that line depending on what point they are in the orbit? For instance, Venus could appear to be inside Mercury, as in my drawing, correct?
Edit: the asteroid has little or no inclination.