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- Title
EXPERIMENT OF WFCT-II (WIDE FIELD CRYOGENIC TELESCOPE II) AT SUTHERLAND, SOUTH AFRICA.
- Authors
Haraguchi, K.; Sato, S.; Kurita, M.; Weilai, G.; Nagata, T.; Nagayama, T.
- Abstract
We have developed a Wide Field Cryogenic Telescope II (WFCT-II), which contains a whole telescope-optics in a cryostat to suppress thermal emission from the whole telescope. The cryostat is of a cylindrical shape of 800 mm length and 300 mm diameter. The telescope inside is a Ritchey-Chretien system with the primary mirror of 231 mm in diameter and a focal length of 1500 mm. The InSb 1k×1k infrared array detector (Aladdin II) has a FoV of 1 square degree and a resolution of 3" × 3"/pixel. We can install 5 filters whose wavelengths range from 1 μm to 5 μm.
- Subjects
SOUTH Africa; TELESCOPES; CRYOSTATS; INFRARED detectors; INFRARED array detectors; OPTICAL instruments; ASTRONOMICAL instruments; ASTRONOMY; SPACE sciences
- Publication
EAS Publications Series, 2008, Vol 33, p257
- ISSN
1633-4760
- Publication type
Article
- DOI
10.1051/eas:0833035