AB Aurigae

of the VLT in polarised light. The right side is zoomed-in version of the area showing the inner region of the disc, including the very-bright-yellow ‘twist’ where a planet is believed to be forming. In 2017 scientists used the Atacama Large Millimeter/submillimeter Array (ALMA) to take an image of the protoplanetary disk around AB Aurigae. The image showed a dusty disk which has a radius of about 120 astronomical units and a distinct "gap". Inside this gap gaseous spiral arms are detected in CO. The planet-like clump observed in April 2022 at projected separation 93 AU from star, may be either an accretion disk around newly formed planet or the unstable disk region currently transforming into the planet. The planet was independently detected in July 2022. ==Gallery==

File:Abaurigae hst big.jpg|AB Aurigae and its dust disk seen by Hubble File:ABAurLightCurve.png|A light curve for AB Aurigae from MOST satellite data, adapted from Cody et al. (2013) File:HST Images of Jupiter-like Protoplanet AB Aurigae B.png|Hubble Space Telescope images of protoplanet AB Aurigae b. ==References==