The historic Lick 36" Refractor is a completely manual
telescope. While there is a motor for tracking the telescope, slewing the
telescope from one position on the sky to another is done by pushing
the telescope by hand or using the ship's wheels on the telescope
pier (see Telescope Motion).
The principal instrument is the eyepiece (the commonly used
eyepieces are shown in Figure 1). The other currently supported
instrument is a bifilar micrometer. As of June 2010 the available
- 55mm (TeleVue Plossl)
- 35mm (TeleVue Panoptic)
- 22mm (TeleVue Panoptic)
- 16mm (TeleVue Nagler Type 2)
- 32mm Binocular Eyepiece (Figure 2)
- Historic Moon Eyepiece (available by special request only, as it is
now stored in the Historical Collection).
Figure 1: Commercial eyepieces for the 36" refractor.
Figure 2: 32mm Binocular eyepiece (with storage case). Donated by Rich Neuschaefer.
The bifilar micrometer (Figure 3) is currently in use for the Washington Double Star
Catalogue . For information on the bifilar micrometer see
Sanders, W. L. 1966 and contact the support astronomers.
Figure 3: Bifilar Micrometer