Star clusters within the provisional PLATO Fields LOPS1 (left panel) and LOPN1 (right panel) in Galactic coordinates.The PFs are color-coded in blue shades according to the number of co-pointing “normal” cameras, from six (light blue) to 24 (dark blue). The Kepler Field is plotted as a pink translucent area. Open cluster members identified by Cantat-Gaudin et al. (2020) are plotted as green points, and the corresponding cluster center and radius as black circles; only for OCs older than 100 Myr and for which the apparent visual magnitude of a solar twin is m_V,⊙ < 15 (d ≲ 1000 pc) are the circles gray-filled with the name of the OC labeled. Globular clusters from Harris (1996) are also plotted with red empty circles.