ALNITAK - ALNILAM - MINTAKA

                                

                                    Image source: [1]

Many say comparisons are hateful, but in the universe that is not so. Here a chart where you can observe the size of our Sun compared to the three stars that make up the famous Orion Belt in the constellation bearing the same name.

ALNITAK is actually a star system formed by three stars, of which the main one is Alnitak Aa, a blue supergiant with a mass equivalent to 20 solar masses. It is quite "young" since it is only 6 million years old, but due to its large size and temperature it consumes hydrogen at an enormous rate which has led it to finalize the fusion in its nucleus and is currently in the process of becoming a supergiant Red that will later explode in a supernova to give rise to a neutron star.

                                                                 

                                                                  Image source: [1]

ALNILAM is the brightest of the three stars that make up the Oríón Belt. It is a white-blue supergiant (the closer it gets to the blue a star means that it is warmer) having a mass of at least 40 solar masses. Its luminosity reaches 375 000 times the solar luminosity. It is even younger than Alnitak, barely 4 million years old.

                                                                  

                                                                  Image source: [2]

MINTAKA is a binary stellar system, made up of two stars very similar to each other. 20 solar masses and a luminosity of 90 000 times that of the Sun are some of the characteristics of this pair.

                                                                  

                                                                  Image source: [3]