TYPES OF STAR STELLAR ASTROPHYSICS A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z                    HOME ABOUT CATEGORIES SITE MAP COPYRIGHT ADVERTISE CONTACT entire Web this site blue straggler Blue stragglers photographed in the core of the globular cluster 47 Tucanae by the Hubble Space Telescope A hot, bright star in a globular cluster or, occasionally, an open cluster, that lies close to the cluster’s extrapolated main sequence but a few magnitudes above its turnoff point. Various theories have been put forward to explain why such stars have not already evolved to become red giants. The most favored of these involve mass transfer from, or coalescence with, a binary companion. Blue stragglers may also arise from the collision of stars in the crowded interiors of globular clusters. Related categories    • TYPES OF STAR    • STELLAR ASTROPHYSICS Also on this site: Encyclopedia of Alternative Energy & Sustainable Living Encyclopedia of History Transport Concepts & Designs (partner site) BACK TO TOP