SIMBAD references

An extensive survey of blue straggler candidates in galactic open clusters of both hemispheres is presented. The blue stragglers were selected considering their positions in the cluster colour-magnitude diagrams.They were categorized according to the accuracy of the photometric measurements and membership probabilities. An amount of 959 blue straggler candidates in 390 open clusters of all ages were identified and classified. A set of basic data is given for every cluster and blue straggler. The information is arranged in the form of a catalogue. Blue stragglers are found in clusters of all ages. The percentage of clusters with blue stragglers generally grows with age and richness of the clusters. The mean ratio of the number of blue stragglers to the number of cluster main sequence stars is approximately constant up to a cluster age of about 10^8.6 yr and rises for older clusters. In general, the blue stragglers show a remarkable degree of central concentration.