The first time discovered the water drop star
Due to the force of gravity in the binary star system, the star HD74423 in the Milky Way is pulled distorted to one side.Interesting things you didn't know about the 25,800 year old Northern star
The North Star (SBC) is not the brightest star, but its brightness is only average. In the ranking of the brightest stars, SBC did not even reach the top 40 but only ranked 48th.Algol spotted the secret of 'Devil Star' Algol blinked off randomly
Evidence from the Cairo calendar showed that the ancient Egyptians soon discovered