Observationes coelestes, anno 1719 : Berolini in observatorio regio habitae, postea elaboratae et in ordinem redactae, aliquando etiam cum calculo collatae..., [1719-1720].

1 v. (circa 100 p.) ; 33 cm.

Latin

In Latin.

Purchased from Martayan Lan Rare Books on the Lathrop Colgate Harper Fund, 2010.

Christfried Kirch (1694-1740) was the son of the astronomer and calendar maker Gottfried Kirch. From 1716 to 1740 Christfried was an astronomer and calendar maker at the observatory of the Academy of Sciences in Berlin.

Holograph document containing Kirch's astronomical observations and calculations for the year 1719, including five engraved and colored plates depicting the partial lunar eclipse of August 29, 1719. The observations are divided into nine sections, dealing with the eclipse, stellar occultations, measurements of the solar ecliptic, remarks on the five known planets, and meteors. Kirch also describes his use of the observatory's equipment, recording the focal length and settings of his telescopes.

Archives or Manuscripts / Images

September 16, 2010

Christfried Kirch, Observationes Coelestes, Anno 1719. General Collection, Beinecke Rare Book and Manuscript Library, Yale University.

Christfried Kirch, Observationes Coelestes, Anno 1719. General Collection, Beinecke Rare Book and Manuscript Library, Yale University.

Drawings (visual works)