Betelgeuse,Rigel and Alnitak

 Betelgeuse

Betelgeuse is the 10th most shining star in space and 2nd in the Orion constellation.Betelgeuse radius is about to 617 million km and 1400 times huge than sun.It consumed all its energy and very soon it will be explode and we can see this without any telescope.It is very far from us about 642 light year which means, if we travel to there we need 6078519328633165 km to reach and due to this distance we see this smaller. 

Rigel

Rigel is the 1st shining star in Orion constellation basically this star is not only a star,it is a triple star system in which two small stars orbit a giant yellow star and also this star will be blast like Betelgeuse star. this yellow star is larger than our sun about 79 times and far away from our earth about 864 light year and 8174071128309200 km.

Alnitak

This star is far away from our earth about 1262 light and year 11939441856396000 km, its temperature is about 39226° and huge 20 times than sun which means,its size si 2,0000000 km,but also like Rigel it is a two star solar system in this one star is very large and the other is very small.Alnitak age is 64,00000 years,it was discovered in 1819 and it is a blue super giant star while the small one is blue sub giant star.This is 31st most shining star in space.

Thanks for reading!