Joseph von Fraunhofer
Bavarian optician whose heliometer let Bessel measure the parallax of 61 Cygni.
Person6 Mar 1787 – 7 Jun 1826
- Identifiers
- Wikidata Q43948
Bavarian optician whose heliometer let Bessel measure the parallax of 61 Cygni.
Person6 Mar 1787 – 7 Jun 1826
