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Development of a very small telescope for a milli-arcsec space astrometry

Published online by Cambridge University Press:  01 October 2007

M. Suganuma ,
Y. Kobayashi ,
N. Gouda ,
T. Yano ,
Y. Yamada ,
N. Takato  and
M. Yamauchi
M. Suganuma
Affiliation:
National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan email: suganuma@merope.mtk.nao.ac.jp
Y. Kobayashi
Affiliation:
National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan email: suganuma@merope.mtk.nao.ac.jp
N. Gouda
Affiliation:
National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan email: suganuma@merope.mtk.nao.ac.jp
T. Yano
Affiliation:
National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan email: suganuma@merope.mtk.nao.ac.jp
Y. Yamada
Affiliation:
Department of Physics, Kyoto University, Oiwake-cho Kita-shirakawa, Sakyo-ku, Kyoto 606-8502, Japan
N. Takato
Affiliation:
Subaru Telescope, National Astronomical Observatory of Japan, 650 North A'ohoku Place, Hilo, HI 96720, USA
M. Yamauchi
Affiliation:
Department of Astronomy, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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Abstract

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We are preparing a reflecting telescope for Nano-JASMINE, a very small satellite for global space astrometry of milli-arcsecond accuracy. The telescope has a 5-cm diameter primary mirror and a beam-combiner in front of it. It occupies only about 12x12x17cm and is entirely made out of aluminum alloy. The telescope and its surrounding structures are carefully designed for thermal stability of the optics, especially to control changes in the relative angle of the beam-combiner.

Keywords

astrometryspace vehicles: instrumentstelescopes
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 3 , Symposium S248: A Giant Step: from Milli- to Micro-arcsecond Astrometry , October 2007 , pp. 284 - 285
Copyright
Copyright © International Astronomical Union 2008

References

Kobayashi, Y. et al. 2006, Proc. SPIE 6265, 626544CrossRefGoogle Scholar
Suganuma, M., Kobayashi, Y., Gouda, N., Yano, T., Yamada, Y., Takato, N., & Yamauchi, M. 2006, Proc. SPIE 6265, 626545CrossRefGoogle Scholar