Errata, addenda, stars: fundamental parameters, stars: horizontal branch, stars: variables: RR Lyrae Keywords: errata; addenda; stars: fundamental parameters; stars: horizontal branch; stars: variables: RR Lyrae EN errata addenda stars: fundamental parameters stars: horizontal branch stars: variables: RR Lyrae 3097 3097 1 07/08/22 20220801 NES 220801 Due to a typographic error the coefficient of the period ( I P i ) in equation (3) was wrong in Jurcsik, Hajdu & Juhász ([1]). [Extracted from the article]