Repsolds Spider Line Micrometer for Quick Position Angle Motion

| View Cart ⇗ | Info

“Repsolds’ more recent form of the spider—line micrometer (since 1893) for large telescope. Quick motion in Position—angle for rough setting or for the measurement of close double stars is given by the large ring R.” —Encyclopaedia Britannica, 1910

Keywords

telescope, Micrometer, adjusting telescope, Telescope Micrometer, Repsolds Micrometer Box for Yerkes Telescope

Galleries

Telescopes and Binoculars

Source

Encyclopaedia Britannica (11th ed., vol. 18) (New York, NY: The Encyclopaedia Britannica Company, 1910)

Downloads

TIFF (full resolution)

2400×2449, 1.7 MiB

Large GIF

1003×1024, 277.1 KiB

Medium GIF

627×640, 134.3 KiB

Small GIF

313×320, 42.0 KiB