Astrum
patreon
Astrum Answers Mar 2021
🕑 Added 2021-03-15 11:21:59 +0000 UTCOK! The previous Astrum Answers has been published, so its time for a new poll! What question do you want to see answered this time?
Comments
Dave Mausner
Yipes! That is a good question by Lukas. Let's learn about the possible configurations.
Lukas Kalbertodt
Regarding the "two suns" question: there are obviously a few different configurations. E.g. earth could orbit on of those suns, while both suns orbit each other around their center of mass. Or the earth could orbit the center of mass of both suns while both stars are on the inside. (See https://en.wikipedia.org/wiki/File:Planets_in_binary_star_systems_-_P-_and_S-type.svg). What I wondered just now: would it be possible for a planet to orbit around the center-of-mass of both stars but INSIDE the stars' orbit? So that the orbital period of the planet would be shorter than that of the stars. Or would that orbit be unstable?
