The 11 year history of starspots on V1149 Ori = HD 37824

All available radial-velocity measures, published and unpublished, yield an improved period and a new (assumed circular) solution. The period is 53.58 d ± 0.02 d and conjunction (K1 giant in front) was at 2444325.93 ± 0.12 d. Eleven years of V-band photometry, published and unpublished, between 1978-1979 and 1989-1990 is analyzed. Eighteen data groups are fit with a two-spot light-curve-modeling technique. Six spots existing sometime during the 11 years are identified and the 4% range of their rotation periods is used to estimate a differential rotation coefficient of k = 0.08 ± 0.02.