7973 20260213165434.0 CTALK-2026-0067 Sermeus, Jan Students' use of distance to explain the apparent size of the Sun and Moon. 2025 2025-09-23 NO Keppens, Willem Van Winckel, Hans Van Dooren, Wim De Cock, Mieke Astronomy Education Conference, Melbourne, Australia jan.sermeus@ksb-orb.be Contributed CTALKCONT