JWST resolves 1,200 stars in Andromeda's NGC 206

NASA’s Astronomy Picture of the Day on November 13, 2026, highlighted NGC 206, a massive star cluster in the Andromeda galaxy, captured by the James Webb Space Telescope’s near‑infrared camera. The image shows a bright, blue core surrounded by a halo of younger stars, offering a rare glimpse of star birth in a neighbouring galaxy.

NGC 206 sits about 2.5 million light‑years from Earth in the northern spiral arm of Andromeda. It has long been a target for astronomers because its dense population of O‑type and B‑type stars makes it a natural laboratory for studying how massive stars influence their surroundings. The new JWST data resolve individual stars that were previously blended in Hubble images, allowing scientists to map the cluster’s structure and age distribution with unprecedented precision.

The cluster contains roughly 1,200 stars more massive than the Sun, with the brightest members exceeding 30 solar masses. Its age is estimated at 12 million years, placing it among the youngest massive clusters in Andromeda. Dr. Elena García of the European Southern Observatory said the image “reveals a complex interplay of stellar winds and radiation that will shape the future evolution of the cluster.” Public reaction on Twitter and Reddit was intense, with many users noting the striking similarity to the Orion Nebula. The image also confirms predictions from recent simulations that such clusters should show a pronounced age gradient from centre to outskirts.

Follow‑up observations are planned for the upcoming Nancy Grace Roman Space Telescope, which will survey the same region in the visible and infrared. Scientists hope to track the motion of