Alexander William Roberts – Neglected Science

Alexander William Roberts, Scottish-born South-African astronomer (Farr, Sutherland 04 December 1857 – Alice, Eastern Cape 27 January 1938)

Authored over 100 works

Discovered some variable stars

With H.N. Russell demonstrated that the components of some of binary star systems are low-density stars with gigantic diameters

Developed a visual photometer

Lunar crater Roberts

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