The Stars

Posted by Keshav Jain on


 



 



 



 



What are visual binaries?



In visual binaries the two component starts are clearly visible.



 



 



 



 





 



 



What are astrometric binaries?



In astrometric binaries one of the stars is a dark companion (such as a black dwarf or a Black Hole) which emits little or no radiation. The existence of the dark companion star can therefore be deduced only from an observation of the minute perturbations in the motion of the visible star caused by the gravitational field of its dark companion.



 



 



 



 



 





 



 



What are contact binaries?



In contact binaries, the gravity of one star is so great that it is actually sucking out material from the other star in the form of a stream of matter continuously transferring from one star to the other.



 


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