OP Herculis

catalogues and names
The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version)
SKY2000 - Master Star Catalog
Smithsonian Astrophysical Observatory Star Catalog
Combined General Catalogue of Variable Stars (Vol. I-III)

catalogues and names

catalogues and names OP Her, HR 6702, HD 163990, SAO 47080, BD +45 2627