![[Friedrich Wilhelm Bessel]](ncd01142.jpg "19kb jpg illustration of Friedrich Wilhelm Bessel, date unknown, artist unknown; please do not write to ask about the image")
(1784-1846)
Astronomer.
First to successfully measure stellar parallax when he measured 61 Cygni, founded a system of reduction, improved the use of the heliometer, and was director of the Observatory at Konigsberg.
New Catholic Dictionary
New Catholic Dictionary
