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How to detect exoplanets?



The film above this text introduces some methods. The fact is that there are multiple methods how to find those mysterious and fascinating worlds. 

The most common way to find the planets that are orbiting red dwarfs is to detect the planet's gravitational effect on stars' specific movement. Specific movement is the trajectory that the star follows when it orbits the center of the Milky Way. 

If the trajectory is curving there is a planet that causes those changes. The neutron star or black hole causes radiation. So if there is a dark object that is the possible planet. 

If the planet orbits a red dwarf there is easy to detect the changes in the brightness of that star. That requires that the planet orbits the star by using trajectory, where it goes between star and Earth. 

But if the planet ever gets between star and Earth there is no chance to detect the changes in brightness. The limit of those methods is that they cannot use in the case of yellow or some bigger stars. The red dwarfs are not very kind places for the advancement of lifeforms. The red dwarfs are erupting stars. 

And their planets are locked by the tidal forces. So there is impossible to form higher lifeforms. But for the hypothetical advanced civilizations, those red dwarfs can give the excellent position to make an outpost. Livin on those red dwarf "habitable planets" requires the ability to make shields, but if the species can make that thing. 

The red dwarf and locked planets offer unlimited solar energy sources for those hypothetical space travelers. But that requires that the lifeforms are formed somewhere else. 

The other way is to see the planet's gravitational effect on the interplanetary nebula. The planet can cause the bubble of thicker material in that nebula. Because the planet's gravitational collects particles around it. 

Or the planet is making a hole in the disk of interplanetary nebula like so-called shepherd moons are making in the rings of planet Saturn. Also when the high-energy particles impact the planet's atmosphere. That causes the X-ray emission. And that X-ray emission uncovers planets near bright stars.

There is the possibility that also bright blue stars have planetary systems. There is a suspected exoplanet near Beta Centauri. The X-ray emission tells that there is the possibility that there is so-called hot Jupiter near that extremely bright star. But that planet would be extremely short living and extremely hot. If it exists. The b Centauri main star has the light power of 9500-13000 suns. And that thing covers even the other participants of this triple star. But even if that planet is the shining furnace that finding could be very interesting even if it's far from habitable. 


https://skyandtelescope.org/astronomy-news/giant-planet-imaged-around-massive-star/


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


https://thoughtsaboutsuperpositions.blogspot.com/


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