These volumes contain calculations and drawings of an eclipse of the sun, 24 June 1778, and of the moon, 29 May 1779, adjusted to the meridian of Philadelphia. There is also an incomplete duplicate of the calculations for the sun, and a duplicate of the calculations for the moon. An apparently personal reference in the text suggests that Freehauff was a native of Germany.
Daniel Freehauff was an astronomer from Allentown, Pennsylvania.
Provenance
Presented by George Vaux and accessioned, 03/21/1834 (35).
General physical description
2 volumes, ca. 317 p.
Early American History Note
These two volumes contain astronomical calculations for two eclipses observed in Philadelphia, one in 1778, the other in 1779. In addition to the data and calculations, the volumes contain detailed essays of how to make such calculations.
Genre(s)
- Drawings.
- Manuscript Essays
- Scientific Data
Subject(s)
- Astronomy.
- Eclipses.
- Science and Technology