This one of the prettiest binaries in the sky. If you can view it through a 6" or better refractor, DO IT!Eridanus1 said:I saw this binary with me friend's 10-inch. The secondary looked so blue I could not believe my eyes!
Has anyone hear noticed the deep colour of this lovely double star?
Eridanus1
The color of Epsilon Bootis, also known as Izar or Pulcherrima, is orange-red. It has a spectral type of K0 III, which indicates a star that is cooler and larger than our sun.
Epsilon Bootis is approximately 210 light years away from Earth. This distance is equivalent to about 1,240,000,000,000,000 miles.
The color of a star can provide information about its temperature, age, and composition. In the case of Epsilon Bootis, its orange-red color indicates that it is a relatively cool and mature star that is primarily composed of hydrogen and helium.
Yes, Epsilon Bootis is visible to the naked eye in the northern hemisphere. It is located in the constellation of Boötes and has a visual magnitude of 2.37, making it one of the brighter stars in the night sky.
Epsilon Bootis is actually a multiple star system. It consists of two stars, a bright orange giant star and a smaller white dwarf star, that orbit each other every 1,100 years. However, these stars are too close together to be seen as individual stars with the naked eye.