The diameter of this object was discovered in 1959 by Robert Brown and Richard Twiss with a stellar intensity interferometer.
The diameter of this object was discovered in 1959 by Robert Brown and Richard Twiss with a stellar intensity interferometer. Ejnar Hertzsprung suggested that this object was a member of the Ursa Major Moving Group, and Friedrich Bessel observed the inconsistencies in this object's orbit that led to the discovery of its companion star by Alvan Clark. Along with Procyon and Betelgeuse, this star makes up the Winter Triangle. This star's companion was the second white dwarf to be discovered. Ancient Egyptians associated the seasonal flooding of the Nile with this star. Name this brightest star in Canis Major and in the night sky, sometimes called the "Dog Star."
The diameter of this object was discovered in 1959 by Robert Brown and Richard Twiss with a stellar intensity interferometer.
{Sirius} A