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CERGA Photoelectric Astrolabe — Computational and Instrumental Improvements

  • B. Chauvineau (a1), A. Journet (a1), G. Vigouroux (a1), J. Kovalevsky (a1), G. Billaud (a1), R. Boche (a1) and M. Furia (a1)...

Extract

The compilation of three years of observations by the improved photoelectric astrolabe of CERGA has provided a star catalogue with an internal precision of 0.03″ in right ascension and 0.04″ in declination for 47 stars and a similar precision for 82 other stars solved only for right ascension (Vigouroux et al., 1992). The classical group reduction was used. External comparisons with preliminary HIPPARCOS positions showed that these numbers represent the accuracy of the catalogue. However, many changes in the instrument and in the reduction procedures are contemplated that should bring new significant improvements in these results.

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References

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Vigouroux, G., Billaud, G., Boche, R., Chauvineau, B., Furia, M., Journet, A. and Kovalevsky, J. (1992) Astron. and Astroph. Suppl. (in press).

CERGA Photoelectric Astrolabe — Computational and Instrumental Improvements

  • B. Chauvineau (a1), A. Journet (a1), G. Vigouroux (a1), J. Kovalevsky (a1), G. Billaud (a1), R. Boche (a1) and M. Furia (a1)...

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