Friedrich von Hahn

Graf von Hahn (July 27, 1742 – October 9, 1805) was a German nobleman, a philosopher and astronomer born in Neuhaus, Duchy of Holstein, Holy Roman Empire (the area was also at the same time part of Denmark-Norway).

[2] He owned some of the largest mirrors made by William Herschel and precision instruments for determining the position of stars.

Von Hahn spent a significant amount of time observing the nebula NGC 3242, originally discovered by William Herschel.

After his death, his son, the "theatrical count" and father of author Ida, Countess von Hahn-Hahn, squandered his fortune and all books and instruments were sold.

His herschelian telescope was acquired in 1812 by the Neapolitan astronomer, Federigo Zuccari, for the new Capodimonte Observatory.