4 Notes on individual objects

LTT 5386 and LTT 8787: These stars show very small motions, not measurable with our plate material. For them Luyten gives proper motions of 0.28 and 0.21 arcsec/year, respectively.
LTT 5804, 6025, 6163, 7852 and 8436: We did not detect any motion for these stars. For them the LTT gives proper motions of 0.20, 0.23, 0.20, 0.23 and 0.34 arcsec/year, respectively. Of these, only the value for LTT 5804 is declared uncertain by Luyten.
LTT 8757: This object appears slightly elongated in our plates. It could be a binary system.
LTT 8790: Not visible in our plates. Luyten assigns a photographic magnitude of 13.7 to this star.
LTT 9049: This star has a very faint companion with which it could form a binary system.
LTT 9133, 9134: Bright close pair, not resolved in our plates. It could be a binary system.

LTT 9230: Close pair which seems to form a triple system with LTT9229.
LTT 9453: For this star we obtain a position angle which differs in more than $200\hbox{$^\circ$ }$ with that given by Luyten. Dpa for this object was left blank in Table 1.

Acknowledgements

We are grateful to R. Antezana and M. Wischnjewsky for cooperating to explore the plates. This work was partially financed by the Fondo Nacional de Investigación Científica y Tecnológica (Proy. 1930953, Fondecyt).