Eise Eisinga, Dutch astronomer and academic, built the Eisinga Planetarium (b. 1744)

Eise Jeltes Eisinga (21 February 1744 – 27 August 1828) was a Frisian amateur astronomer who built the Eise Eisinga Planetarium in his house in Franeker, Dutch Republic. The orrery still exists and is the oldest functioning planetarium in the world.