Determination of stellar positions with a cross-correlation procedure

Details Determination of stellar positions with a cross-correlation procedure Determination of stellar positions with a cross-correlation procedure

Mar 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994exa.....5..101l&link_type=abstract

Experimental Astronomy, Volume 5, Issue 1-2, pp. 101-107

Astronomy and Astrophysics

Astronomy

Media, Meridian Circle, Cross-Correlation

Scientific paper

A technique of cross-correlation for the determination of stellar positions is proposed. It is a technique suitable for the recording of stellar positions on transit instruments, photoelectric astrolabes, and also on the meridian circles with reversed observing method. An advantage of this process is that there is no hypothesis required for the modelling image profile, and for the noise. It is closer to unbiased estimation. Results by this new method on a transit instrument are presented. For the brighter stars, there is no great difference in accuracy between the median position and the cross-correlation value according to the results.

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