Sunspot Observations by Philippe de La Hire from 1703 to 1710

In this work, we analyze sunspot measurements, drawings, and engravings made by Philippe de La Hire during the Maunder minimum and reconstruct the coordinates, areas, and numbers of sunspots and sunspot groups. We compare La Hire's measurements with those published in Mémories and those from German observations. The time-latitude diagrams of cycle -4 provided by Spoerer (Ueber die periodicitat der sonnenflecken seit dem Jahre 1618..., 1889) and Ribes and Nesme-Ribes (Astron. Astrophys. 276, 549, 1993) are consistent with our results. We also estimate the sidereal differential rotation rate and verify the persistence of Joy’s law.