This functions a bit like a record player: a tip moves across the sample and pieces together a complete image of the surface. (sciencedaily.com)
«Astronomers produce first detailed images of surface of giant star.» (sciencedaily.com)
An international team of astronomers has produced the first detailed images of the surface of a giant star outside our solar system, revealing a nearly circular, dust - free atmosphere with complex areas of moving material, known as convection cells or granules, according to a recent study. (sciencedaily.com)