Astronomers’ new technique measures temperature of a star with high precision

Astronomers study stars by looking at the different colors of light they emit—colors they capture and analyze using spectroscopy. Now a team led by Université de Montréal’s Étienne Artigau has developed a technique that uses a star’s spectrum to chart variations in its temperature to the nearest tenth of a degree Celsius, over a range of time scales. Astronomers study stars by looking at the different colors of light they emit—colors they capture and analyze using spectroscopy. Now a team led by Université de Montréal’s Étienne Artigau has developed a technique that uses a star’s spectrum to chart variations in its temperature to the nearest tenth of a degree Celsius, over a range of time scales. Astronomy Planetary Sciences Phys.org – latest science and technology news stories