One of nineteen photographs from the Royal Observa

Made:
1909 in South Africa and Cape Town

One of nineteen photographs from the Royal Observatory, Cape of Good Hope, South Africa, showing a 7-inch Heliometer with equatorial mounting by Messrs Repsold and Sons, Hamburg. Used widely by Sir David Gill to make stellar parallax measurements from 1887 onwards.

Details

Category:
Astronomy
Object Number:
1909-211/1
Measurements:
overall (mount): 405 x 355 x 1.5 mm
type:
photograph
taxonomy:
  • visual and verbal communication
  • furnishing and equipment
  • measuring device - instrument
  • micrometer - angle
  • double image micrometer
credit:
Royal Observatory, Cape of Good Hope