No, it's lunar destruction we are talking about. It's much less destruction and thus less interesting.
But what would happen if the two moons hit one another? Both moons get back in their dimension to disintegrate peacefully? Or they collide in the same dimension? Destroy the fabric of the world itself and provoke and even weirder phenomenon?
Well, I'm asking that question but I don't want it to happen. So it does not need to have a solid explanation. One could say: ''when I see that the moons are about to collide, I just close my TV and do something else. I try to convince myself that it's just how things are supposed to be but it's still really annoying to think that we are all going to die... again''. That's what I did in Zelda Majora's mask and I think it's a perfectly legitimate answer.
For the rest of the system, I will play with my physic simulator to test the brightness of the second star. It's on scale so I'll put a print screen here.
I said that the orbital period was around 500 years but I have no preference for the orbital eccentricity or the angle of inclination. Ideas?
AS for the rest of the system, my idea was to have:
1- planet that orbit close to the star. It is tide locked. I do not know at what distance a planet could become tide locked with the Sun but I suppose the planet would be difficult to see from our world. Maybe at dawn/dusk, a small and reddish sphere would appear in the sky close to the star. It's possible to see her only a very short moment in the best scenario. It's a lava type planet. Being close to the star mean it's a lot hotter with surface temperate well over 100 degrees on the tidal locked face. But the other side is freezing cold. And finally, the tidal energy generate heat in the planets resulting in a lot of geothermal activities. Maybe (would be cool) to have enough tectonic activities that the planet would generate a faint reddish light. The orbit is almost a perfect circle. It's about the size of Mercury.
2- is an old planet. The formation occurred before the supernova and before the main star was born. She probably drifted for some time in space before gaining the actual orbit. Her obit is pretty eccentric. Temperature on the planet are extreme since the rotation takes about more than 3 terrestrial years to complete and has a strong inclination. The planet has near to zero magnetic field given it's slow rotation and the small size of it's melted core. Is has a very thin atmosphere with different gases and water. During it's life, many objects came in collision with the planet. That's why there are so many craters and water in the atmosphere. There also a lot of debris floating around the planet. Some of them rotates at more than 1 million km but most orbit closer in a planetary ring. The debris are generally small or it's simply dust. The color is a pale gray and she is smaller than Venus. This planet would be visible with naked eyes.
3- Orbit pretty close to our world and is in the habitable zone too. It's an earth like planet that is 30% bigger and rotate in about 36 hours. The gravity is stronger which allows for a thicker and denser atmosphere. It's a very humid place but extreme climates also exist (but maybe not deserts). The planet is more inclined (30 degrees) so climates are more extreme between the season. It has 2 moons: the second one is pretty small but the closest one is much bigger, bigger than the moon. It's so big that the planet is tidal locked to it.
4- CWBP 2 world ...
5- a cold planet smaller than Venus orbit at around 250 millions km of the star. It's almost all covered with a thick layer of ice which reflect a lot of light into space.
6- a blue gas giant, probably made of methane.
I haven't sorted all the details
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