Asteroids named after people called Jaap

(10433) Ponsen

Jaap Ponsen (1931-1961) was a Leiden astronomer who worked on variable stars and made observations at the southern Leiden Station at Hartebeespoortdam. He died on his return trip to Leiden. The citation was prepared by U. Schwarz.Discovered 24 September 1960 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T., Palomar

(10434) Tinbergen

Jaap Tinbergen (b. 1934) is an expert on polarimetry who works mainly on the development of new instruments for radio astronomy. The citation was prepared by U. Schwarz.Discovered 24 September 1960 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T., Palomar

(12953) Jaapvreeling

Jaap Vreeling (1956–2025) was a Dutch amateur astronomer, math teacher and astronomy communicator. He was one of the driving forces behind the Mobile Planetarium project of the Netherlands Research School for Astronomy. After his retirement he initiated the Lynch Planetarium on Sint Eustatius, the first planetarium in the Caribbean.Discovered 29 September 1973 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T., Palomar