The Discovery of the First White Dwarf: Sirius B

On January 31, 1862

Alvan Graham Clark discovered the white dwarf star Sirius B.

He discovered the star through an 18.5-inch (47 cm) telescope, which is now located at the Northwestern University.

This Day in History - January 31

1949

The first-ever daytime soap opera, These Are My Children, aired on NBC.

1933

The day after being appointed, Adolf Hitler called for new elections to ensure he would win majority votes.

2020

The United Kingdom left the European Union, also known as 'Brexit.'

1961

A chimpanzee named Ham became the first primate to go to space aboard the US MR-2 spacecraft.

1971

NASA's Apollo 14 spacecraft was launched and headed for the moon.

What Happened on Jan 31?

What Happened in 1862?