The 20th letter of the Greek alphabet, transliterated as y or u
Theta Upsilon was created in 1921.
Psi Upsilon was created in 1833.
Theta Upsilon Omega ended in 1938.
Upsilon Andromedae c was created in 1999.
Upsilon Andromedae d was created in 1999.
Upsilon Andromedae e was created in 2010.
Upsilon Sigma Phi was created in 1918.
Theta Upsilon Omega was created in 1924.
Omega Upsilon's motto is 'Sisters United for Eternity'.
Omega Upsilon was created on 1958-11-18.
Upsilon Xi was created on 1962-09-26.
Delta Upsilon was created on 1834-11-04.