Coudé Auxiliary Telescope - Lick Observatory
Jun 12, 2021 · The Coudé Auxiliary Telescope (CAT) was built in 1969 to maximize use of the Hamilton Echelle Spectrograph. The CAT can be used to observe with the Hamilton Echelle spectrograph during any time that Shane telescope observers are using Cassegrain or prime focus instruments.
Coudé Auxiliary Telescope - Wikipedia
The Coudé Auxiliary Telescope (CAT) is a coudé focus telescope located at the Lick Observatory near San Jose, California, south of Shane Dome, Tycho Brahe Peak. The Coudé Auxiliary Telescope, built in 1969, is a 0.6m (24-inch) reflecting telescope in …
Zeiss Coudé telescope rebfurbish - Classic Telescopes - Cloudy …
Jan 14, 2019 · Last spring I acquired, via Cloudy Nights classified, a classic Zeiss Coudé telescope with a 150mm f/15 objective for a princely sum. The telescope is interesting in that the converging beam is folded with two flats to a fixed focus at the south end of the polar axis. What is not obvious in the image below is that the telescope is huge.
coudé focus telescope - Vaporia
A coudé focus telescope is a Nasmyth telescope (reflector telescope with a tertiary mirror reflecting the light sideways) with additional optics to bring the light to a stationary focal plane. The term coudé focus refers to the position of the stationary focal plane location it provides.
Coude Auxiliary Telescope User's Guide - UCO/Lick
The telescope is so arranged that its beam can be directed through the coude spectrograph's entrance slit at the same angle, and with the same focal ratio, as the beam of the 3-meter coude focus. Light from the CAT and 3-meter are therefore indistinguishable from the viewpoint of …
vik dhillon: phy217 - coude and nasmyth - University of Sheffield
Schematic of a Cassegrain telescope showing the use of a tertiary mirror to direct light to a coudé or Nasmyth focus. The same diagram applies to a Ritchey-Chretien telescope, except that the primary would be hyperbolic rather than parabolic.
0.9-meter Coudé Feed Telescope - NOIRLab
The 0.9-meter Coudé Feed Telescope consists of a 0.9 m alt-azimuth three-mirror telescope with a dedicated spectrograph system. The coudé spectrograph is a versatile instrument capable of intermediate to high resolution (~ 3.6 Å – 20 mÅ) over a wide range of …
Coudé Auxiliary Telescope (decommissioned) | ESO
Coudé Auxiliary Telescope (decommissioned) The ESO Coudé Auxiliary Telescope (CAT) was housed in a smaller dome, adjacent to the 3.6-metre telescope at ESO's La Silla Observatory, and fed the 3.6-metre's Coudé Echelle Spectrometer through a light tunnel.
Coude Auxiliary Telescope User's Guide - UCO/Lick
The 0.6-meter Coude Auxiliary Telescope (CAT) is an independent feed for the Shane 3-meter Reflector's coude spectrographs, enabling their use when the Shane itself is configured for prime or cassegrain observing.
Lick 3-m Telescope: non-technical description: coude focus popup
Accordingly, the Shane telescope is equipped with a third focus, the coudé (pronounced koo-day), which directs the beam, no matter where the telescope is pointed, to a fixed place in the basement of the dome.