AFOE
The Advanced Fiber Optical Echelle is a fiber-fed, bench-mounted echelle spectrograph designed to measure precise stellar radial velocities. Currently installed at the Mt. Wilson 100" telescope, the AFOE is used for exoplanet detection, asteroseismology, and studies of stellar pulsation.

SOHO/UVCS
The Ultraviolet Coronagraph Spectrometer on board the Solar and Heliospheric Observatory makes measurements of the solar corona between 2 and 10 solar radii from the center of the Sun with high spectral and spatial resolution. Data from UVCS are used to improve our understanding of the solar corona and the solar wind.

UV Coronagraph Development
The Ultraviolet Coronagraph group in the SSP Division is developing next-generation concepts for space-based UV spectrometers that are 10 to 100 times as sensitive as the UVCS instrument on SOHO and can observe a host of spectral lines never before detected in the extended solar corona. These new instruments would enable scientists to identify and to characterize the physical processes responsible for producing fast and slow wind streams and coronal mass ejections (CMEs).