1. German mathematician and astronomer who made accurate measurements of stellar distances and who predicted the existence on an 8th planet (1784-1846); [syn: Bessel, Friedrich Wilhelm Bessel]
WordNet (r) 3.0 (2006):
Friedrich Wilhelm Bessel
n 1: German mathematician and astronomer who made accurate
measurements of stellar distances and who predicted the
existence on an 8th planet (1784-1846) [syn: Bessel,
Friedrich Wilhelm Bessel]