III. On the spectrum of a new star in Corona Borealis

Abstract

Yesterday, May the 16th, one of us received a note from Mr. John Birmingham of Tuam, stating that he had observed on the night of May 12 a new star in the constellation of Corona Borealis. He describes the star as “very brilliant, of about the 2nd magnitude.” Also Mr. Baxendell of Manchester wrote to one of us giving the observations which follow of the new star, as seen by him on the night of the 15th instant. “A new star has suddenly burst forth in Corona. It is somewhat less than a degree distant from ε of that constellation in a south-easterly direc­tion, and-last night was fully equal in brilliancy to β Serpentis or v Herculis, both stars of about the 3rd magnitude.”