In 1996, a debate moderated by John Bahcall between Sidney van den Bergh and Gustav Tammann was held in similar fashion to the earlier Shapley-Curtis debate over these two competing values.
I 1996 afholdtes en debat under forsæde af John Bahcall mellem Gustav Tammann og Sidney van den Bergh svarende til den tidligere Shapley-Curtis debat om disse to alternative værdier.