Astronomers Directly Image Brown Dwarf around Nearby Sun-Like Star | Astronomy
HD 33632Ab detections in 2020 (top panels) and 2018 (bottom panels). Image credit: Currie et al., doi: 10.3847/2041-8213/abc631. Brown dwarfs are cool, dim objects that have a size between that of a gas giant and that of a Sun-like star. Sometimes called failed stars, these objects are too small to sustain hydrogen fusion reactions at their cores, yet they have star-like attributes. Typically, brown dwarfs have masses between 11-16 Jupiters (the approximate mass at which deuterium fusion can be sustained) and 75-80 Jupiters (the approximate mass to sustain hydrogen fusion). “This is the fi...