What visual characteristic makes Mars's conjunction with the Moon visually striking?

Answer

Its distinct reddish hue creates a striking color contrast.

Mars is renowned for its distinctive reddish hue, a color feature derived from iron oxides on its surface. When this reddish planet is positioned immediately adjacent to the Moon's familiar grey surface during a conjunction, the resulting visual effect is a striking color contrast. This distinct color profile makes Mars easily identifiable when it shares the sky with our satellite, setting it apart from the paler or whiter lights of other planets.

What visual characteristic makes Mars's conjunction with the Moon visually striking?
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