Abstract

While observing the 21 August 2017 total solar eclipse from Shoshoni, Wyoming, the author briefly witnessed an annulus of red light 2° to 3° from the center of the totally eclipsed sun. The author had no prior knowledge of this phenomenon, thus reducing the chances of observational bias. A simple experiment suggests that the phenomenon may not be the result of an afterimage illusion produced by observing the eclipse through binoculars. The results of these observations appear to support the CCD color measurements of the sky during the same eclipse observed from Esterbrook, Wyoming, by Bruns and Bruns [Appl. Opt. 57, 4590 (2018) [CrossRef]  ].

© 2018 Optical Society of America

Sky brightness and color measurements during the 21 August 2017 total solar eclipse

Donald G. Bruns and Ronald D. Bruns
Appl. Opt. 57(16) 4590-4594 (2018)

Detection of polarization neutral points in observations of the combined corona and sky during the 21 August 2017 total solar eclipse

Frans Snik, Steven P. Bos, Stefanie A. Brackenhoff, David S. Doelman, Emiel H. Por, Felix Bettonvil, Michiel Rodenhuis, Dmitry Vorobiev, Laura M. Eshelman, and Joseph A. Shaw
Appl. Opt. 59(21) F71-F77 (2020)

Digital all-sky polarization imaging of the total solar eclipse on 21 August 2017 in Rexburg, Idaho, USA

Laura M. Eshelman, Martin Jan Tauc, Taiga Hashimoto, Kendra Gillis, William Weiss, Bryan Stanley, Preston Hooser, Glenn E. Shaw, and Joseph A. Shaw
Appl. Opt. 59(21) F41-F52 (2020)

Measurements of the Zenith Sky Brightness and Color During the Total Solar Eclipse of 12 November 1966 at Quehua, Bolivia

B. S. Dandekar
Appl. Opt. 7(4) 705-710 (1968)

Zenith Sky Brightness and Color Change During the Total Solar Eclipse of 12 November 1966 at Santa Ines, Peru

D. A. Velasquez
Appl. Opt. 10(6) 1211-1214 (1971)