SOUTHERN SPECTROPHOTOMETRIC STANDARDS .2.

We have obtained new observations of both secondary and tertiary spect rophotometric standards with the RC spectrographs and CCD cameras on t he 1.5-m and 4-m telescopes at CTIO in the wavelength range 6000-10,50 0 angstrom. We use the secondary spectrophotometric standards in order to calculate new fluxes for the tertiary standards of Stone and Baldw in (1983), as well as for three stars of the Northern Hemisphere from Stone (1977). We find that the synthetic magnitudes calculated from ou r spectra through the I(KC) band agree extremely well with the observe d photometry, to better than 1% on average. For the monochromatic flux es, we find an internal precision better than 0.01 mag blueward of 900 0 angstrom, and increasingly larger for longer wavelengths. We present also a fine grid of averaged monochromatic fluxes (at continous steps of 16 angstrom) for the ten secondary standards selected for our prog ram, to be used in the flux calibration of high-dispersion spectra. Fi nally, we provide combined fluxes for all secondary and tertiary stand ards in the range 3300-10,500 angstrom resulting from the calibration presented here with the one published in Paper I (Hamuy et al. 1992).