Optical design for Antarctic Bright Star Survey Telescope

The exoplanet search is one of the most exciting research fields in astrophysics.The Antarctic Bright Star Survey Telescope (BSST), capable of continuous exoplanet observation on polar nights, is a Ritchey-Chretien telescope with a three-lens field corrector, and has a 300 mm aperture, 2.76 focal ratio, and a wavelength coverage ranging from 0.36 to 1.014 μm.Equipped with a 4 k × 4 k and 12 μm∕pixel CCD camera, the BSST can gain a field of view of 4.8°.This Letter presents the optical design, tolerance analysis, and the alignment plan for the BSST, and the test observation results.