Could I have an earth-like planet from which sun and moon would never be simultaneously visible?
On earth there can be hours where the moon is up during the same time the sun is in the sky (daytime moon) due to the combined rotation of earth and orbit of the moon. I would like to have an earth-like planet which never has the moon and the sun visible in the sky at the same time from any point of the planets surface. Is this possible without too much interference with the earth-like state of the planet?
Ideally the reason for the lack of simultaneous visibility does not effect the stabilising function of the moon for the planet's hability as well as has no significant effects on the planets seasons and day and night cycle. In general consider the planet, the moon and the whole solar system to be the same than ours.
EDIT for clarification: Ideally the planet has a
- similar axial tilt than earth (necessary for similar seasons)
- similar rotation period than earth (no tidal lock, necessary for similar day length and day-night cycle)
- similar orbit than earth (necessary for similar seasons)
- similar gravity than earth
If deviations from the former are necessary than I prefer
- stronger variations in seasons (stronger axial tilt) to less sesaons (axial tilt)
- longer rotation period (longer days) to quicker rotation period (shorter days)
- different orbit is ok (but please state the effect that might have on the planet)
EDIT 2: For the sake of this question "visible" means visible to the naked human eye and/or technology available in the late medieval period of our world (ca. 15th century).
A solution using atmospheric conditions are perfectly fine as long as this does not infringe on the habitability of the planet and these conditions are the same from any point of the planet.
EDIT 3: There are no restrictions on the perceived colour of the moon in the sky. It can be any colour, as long as it stays visible in the night and still give some light during the night.
You can postulate any changes to our system that have no or marginal effects like described above and achieve the desired result. If this effect is not achievable with the restrictions declared above, please state why.
This post was sourced from https://worldbuilding.stackexchange.com/q/109024. It is licensed under CC BY-SA 3.0.
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