VLT spots largest yellow hypergiant star

Using ESO's Very Large Telescope Interferometer (VLTI), Olivier Chesneau (Observatoire de la Côte d'Azur, Nice, France) and an international team of collaborators have found that the yellow hypergiant star HR 5171 A is absolutely huge — 1300 times the diameter of the Sun and much bigger than was expected.

Astronomers trace history of hypergiant star

A 30-year study of an extraordinary hypergiant star has revealed that it went through an extremely rare stage called the 'Yellow Evolutionary Void.'