UX Tri: Period Change Discovered and Unchanged Strong Blazhko Effect Confirmed

Herbert Achterberg, Dieter Husar

New CCD observations of the RRab star UX Tri after JD = 2452234 show a change of the main pulsation period. The period is now P = 0.4669046 +/- 0.0000006 [d]. The change is delta_P…