The prime focus unit of the STELLA/SES telescope is currently being manufactured. It consists of the prime-focus corrector with a FOV of about 1 arcmin, an ADC, a fiber-viewing camera, calibration light injection, and the fiber-injection mounted on a focus-stage.
STELLA/SES prime focus unit (1).
STELLA/SES prime focus unit (2).
Status of the STELLA telescopes
STELLA-I (left) is feeding the spectrograph fiber, while STELLA-II is waiting for the commissioning of the prime focus unit.
Delivery of the STELLA II Telescope
The second STELLA telescope was delivered Dec. 12, 2005
Lifting in the STELLA-II telescope
Installed STELLA-II telescope
Telescope construction. Oct. 2005, Augsburg
Design of the STELLA-II focal station
Main mirror and mirror cells
STELLA-II main mirror. d=1,2m Zerodur produced by ZEISS.
Mirror cell design 1 (courtesy of Roschiwal+Partner, Augsburg)
Mirror cell design 2
Mounted mirror cell (courtesy of Halfmann Teleskoptechnik).
Delivery of the STELLA I Telescope
The first STELLA telescope was delivered Nov. 16, 2004