Shuckburgh telescope

[3] It was one of the larger achromatic doublet telescopes at the time, and one of the largest to have an equatorial mount.

[8] At the Royal Observatory in Greenwich, it was for a time installed in the North Dome, although this had a Sky view partially obscured by the Octagon room.

[9] The focal length was the same for this telescope, with object glass being doublet of 4.1 inch (~10.4 cm) aperture.

[10][12] Shuckburgh placed an order with Ramsden for the telescope in 1781, and it was delivered for his observatory ten years later.

[15] The Shuckburgh, also called the "Eastern Equatorial" at the time Halley's comet was sometimes used with a micrometer microscope.