Accession No

3118

Brief Description

slit for spectroheliograph, attributed to Adam Hilger, English, c. 1900

Origin

England; London [based on attributed maker]

Maker

Adam Hilger [attributed]

Class

optical

Earliest Date

1901

Latest Date

1901

Inscription Date

Material

metal (brass, metal alloy)

Dimensions

slit length 104mm; overall diameter 301mm

Special Collection

Provenance

Transferred from Institute of Astronomy, University of Cambridge, Cambridge, England, 12/1983. Transferred from Solar Physics Observatory, South Kensington to Institute of Astronomy, University of Cambridge in 1913.

Inscription

‘SPO 154’ (below slit)

Description Notes

Slit for spectroheliograph, probably by Hilger, [English], c. 1900.

Metal alloy jaws, curved and bevelled in brass slide with mounted on cast plate. Screw adjustment to slit width. Drum head divided 0 - [10] numbered by 1 graduated to 0.1. Lateral, vertical and inclinational adjustments to mount. 14 fixing screws on plate (2 missing). Department of Science and Arts logo marked SPO (for Solar Physics Observatory).

complete

References

Events