Calcium network diameters are shown to be smaller by 5% at solar maximum than at minimum. The average cell size at minimum is 22,115 + or - 99 km. The average size at solar maximum is 20,920 + or - 112 km, though individual ...

Photoeletric measures of emission band intensities of C2(I,O) and CN (O,O) of the coma of Comet Ikeya-Seki (1965f)are reported. The measured fluxes are utilized to determine the number of molecules of C2 and CN that ...

Photoelectric colours and magnitudes have been determined for twenty-five stars considered to be members of the moving cluster in Perseus. A distance modulus of 6m.83, corresponding to a distance of 230 ps, has been derived. ...