What does it mean that both the moon and the sun are constellations, and that several planets are constellations? What do you mean?

Both the moon and the sun are constellations, which should mean that your sun star and the moon star are the same. For example, your sun star is Gemini, and your moon star is Gemini, but this situation is rare and I have never seen it.

Several planets are all a constellation, which looks very difficult. Gold, wood, water, fire, earth and stars, plus Heavenly King, Neptune and Hades, I've only seen four stars that are the same at most ~ ~ ~