Talk:Sigma Coronae Borealis

A fact from Sigma Coronae Borealis appeared on Wikipedia's Main Page in the Did you know column on 4 December 2014 (check views). The text of the entry was as follows:

Did you know... that the Sigma Coronae Borealis star system is composed of three sun-like stars and two red dwarfs?

A record of the entry may be seen at Wikipedia:Recent additions/2014/December. The nomination discussion and review may be seen at Template:Did you know nominations/Sigma Coronae Borealis.

Wikipedia

Where did the superscript designations originate?

σ¹ and σ² obviously didn't come from Bayer or Lacaille. I can't find any reference to them before about 1975, and even that might be a transcription mistake. They showed up in the 1980's and soon became quite widely used (at least for σ2) but I can't find any paper that says "hey, let's use 1 and 2 instead of A and B ...". Lithopsian (talk) 15:58, 23 April 2017 (UTC)[reply]