Engraving depicting the use of a cross-staff used to measure altitudes of celestial objects. Dated 17th Century

---

Size: 4290px × 4889px
Location:
Photo credit: © World History Archive / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: archival, archive, astronomyastrologicalastronomy17th, century, cross-staff, engraving, engravingengravedcross-staffjacob, historical, history, objectastronomicalastronomerhistory, staffballastellafore-staffbalestilhameasurementmeasurementsaltitudesaltitudecelestialcelestial