Case for one ten inch flint glass prism
Case for one ten inch flint glass prism of angle 12 1/2 degrees with brass mountings [mounted with Inv No. 1889-68]
One ten inch flint glass prism of angle 12 1/2 degrees
- maker:
- Adam Hilger
One ten inch flint glass prism of angle 12 1/2 degrees [mounted with Inv No. 1889-68] with brass mountings and adjustments to minimum angle divation in case. Used with a 10-inch refracting telescope with equatorial mount by Cooke at the South Kensington Solar Physics Observatory and is now at the Norman Lockyer Observatory at Sidmouth, Devon
Details
- Category:
- Astronomy
- Object Number:
- 1888-158
- Measurements:
-
length 480 mm
width 480 mm
height 400 mm
- credit:
- Hilger, Adam
Parts
One ten inch flint glass prism
One ten inch flint glass prism of angle 12 1/2 degrees [mounted with Inv No. 1889-68] with brass mountings and adjustments to minimum angle divation in case. Used with a 10-inch refracting telescope with equatorial mount by Cooke at the South Kensington Solar Physics Observatory and is now at the Norman Lockyer Observatory at Sidmouth, Devon
- Measurements:
-
length 480 mm
width 480 mm
height 400 mm
- Materials:
- glass and brass (copper, zinc alloy)
- Object Number:
- 1888-158 Pt2
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