Maybe there is still a planet, that orbits Alpha Centauri

 

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Maybe there is still a planet, that orbits Alpha Centauri

Above this text is the artist's impression of "super-earth" Proxima Centauri B, a giant rocky exoplanet. There is the possibility that there is some kind of lifeforms on that planet.

As you might know, the existence of Alpha Centauri Bb is still a prediction. The thing that supports the existence of that planet is that Proxima Centauri has a planetary system, and also Luhman 16 might have planets around them. Luhman 16 is a twin star of two brown dwarfs, and sometimes people have introduced an idea that the Luhman 16 should call rather a twin planet than a twin star. So there is the possibility that Luman 16 has small planets or asteroids around it.

But the fact is that Alpha Centauri is much brighter and also larger than Proxima Centauri, and that makes it harder to detect those planets. So the Alpha Centauri Bb vanished from images, and Oxford astronomers believed that the planet does not exist. But the fact is that the predicted planet might turn backward to Alpha Centauri, and that makes it impossible to notice that planet. When we are thinking about Red Dwarfs and smaller Brown Dwarfs most of them have some kind of planets around them. So why Alpha Centauri would not have planets?

How should we call small rocky planets what size is our moon, what might found near brown dwarfs? Many red dwarfs have got brown dwarf as their companion, and those objects might also have sub-orbiters. And here we must realize that there is the possibility that in those solar systems is the icy planets or moons, which are like Europa-moon of Jupiter. Those exoplanets might have lifeforms like algae or bacteria and amoeba.

So how we should call those small, light orbiters, what are orbiting some brown dwarf? The brown dwarf differs from the red dwarf in that it does not produce energy continuously. Its nuclear reactions happen now and then, but that cycle can be very regular. Brown dwarfs are intermediate forms of a star and a planet. Because there is no continuous nuclear reaction in them, that object is not always considered a real star, but some think that brown dwarfs should be defined as planets. But there is also a lot of opinion on that. So there is a possibility, that some of the planets or moons of that kind of object have ice core and the ocean under them can maintain some kind of lifeforms.

https://www.drewexmachina.com/2017/10/14/alpha-centauri-bb-five-years-later-the-search-for-exoplanets-continues/

https://www.solarsystemquick.com/universe/alpha-centauri-bb

https://www.syfy.com/syfywire/have-astronomers-finally-found-a-planet-around-alpha-centauri-maaaaaaaaaybe

https://en.wikipedia.org/wiki/Alpha_Centauri_Bb

https://en.wikipedia.org/wiki/Luhman_16

https://en.wikipedia.org/wiki/Proxima_Centauri_b

Image: https://fi.wikipedia.org/wiki/Proxima_Centauri_b