SIMBAD references

Synthetic B-V color indices in the WBVR photometric system for 11 stars of 3 - 4 mag, proposed as spectrophotometric standards, are calculated for the mean energy distribution data from the Moscow and Alma-Ata spectrophotometric catalogs. Also, synthetic B-V color indices in the same photometric system are obtained for 16 stars of 6 - 7 mag from the set of 60 spectrophotometric standards observed at the Sternberg Institute Crimean Station. Both sets of spectrophotometric standards demonstrate a good agreement between the synthetic and observed color indices. The energy distribution of Vega is compared with the mean energy distribution for A0 V-type stars. A pecularity of the energy distribution of Vega in the ultraviolet range is discussed.