名詞 bessel:

1. German mathematician and astronomer who made accurate measurements of stellar distances and who predicted the existence on an 8th planet (1784-1846)
   同義詞：Friedrich Wilhelm Bessel

Bes.sel

NONE（無詞性）
Prussian astronomer who recalculated the orbit of Halley`s comet (804), verified by parallax the distance from the earth to the twin star ' Cygni (838), and developed a class of mathematical functions based on his study of planetary perturbation.
貝塞耳，弗雷德里?！ね?784-84') 普魯士天文學(xué)家，重新測量了哈雷彗星軌道（804年），通過視差核實(shí)地球到雙子星座'──天鵝星座的距離（838年），在其行星攝動(dòng)研究的基礎(chǔ)上發(fā)展了一種數(shù)學(xué)函數(shù)