A picture of people looking at the total solar eclipse of April 17, 1912, occurring two days after the sinking of the Titanic. Because of this, it is informally known as the “Titanic eclipse.”
It is also notable for being the among the first eclipses where predicted timings and radiation levels of the solar atmosphere were accurately measured. All measurements and conclusions by physicist W.H. Julius were published in the Astrophysical Journal.