On the Planet Krypton

Order Details;

On the Planet Krypton, there are exactly 113 days in one year (the planet has an extremely fast orbit around its star). The people of Krypton have the following 11 days of the week, in order; Yuu, Maui, Channing, Guiomar, Roshan, Loreto, Feidlimid, Rusen, Pemphero, Darcy,Lux. If we know that the first day of the 613 year was Roshan,what days of the week is the 51st day of the year 2015? Be sure to show work and give an explanation about how you arrived at that day.