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    Interstellar navigation with astrometry
    From: Peter Monta
    Date: 2021 Mar 23, 12:42 -0700
    This paper describes a positioning scheme using a star catalog (such as provided by Gaia) and stellar parallax and aberration.  It uses optical sources only.  As the paper mentions, these are essentially sextant measurements of star distances.

    https://arxiv.org/abs/2103.10389

    Cheers,
    Peter

       
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