Stars of later spectral classes from the FBS survey. Preliminary data for seven special cases

Astronomy and Astrophysics – Astrophysics

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Stars, Proper Motions, Individual, Fbs 0250+167

Scientific paper

Preliminary data are presented on seven “special” objects found in low-dispersion spectral plates of the FBS survey. The first object, FBS 0250+167, is found to be a class M7 dwarf with a high proper motion (˜5.130 arcsec/year) lying about 3 pc from the sun. Three of the objects, with spectra of classes M8 M9, are suspected of being long-period Mirids with large mass losses and surrounded by dense clouds. The three remaining objects have very short low-dispersion spectra on the FBS survey plates (clearly they are non stellar objects) and are of interest for later detailed study.

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