add logic to avoid weather mast; now choosing stars based on mag and fall back to 2nd best in case the best is behind the mast; do spiral search and centering right after a slew
add logic to avoid weather mast; now choosing stars based on mag and fall back to 2nd best in case the best is behind the mast; do spiral search and centering right after a slew

saltastro/timDIMM,saltastro/timDIMM,saltastro/timDIMM,saltastro/timDIMM