👉 In astronomy, hyperlustrousness refers to a phenomenon where two stars are so close together that their gravitational pull is such that they appear to be separate objects. This can happen when two stars of different mass or luminosity are orbiting around each other in very close proximity, and the gravitational force between them is so strong that it causes them to look like two points on a string. The term "hyperlustrousness" comes from the Greek word "hyper" meaning above or beyond

hyperlustrousness