The document describes a dataset of sea stars (Antarctic starfish) collected during the ANDEEP3 expedition in 2005. The expedition focused on deep-sea stations in the Powell Basin and Weddell Sea of Antarctica. Sea stars were collected using trawling methods at depths ranging from 1,047 to 4,931 meters. The dataset includes information on the starfish specimens collected, such as location and depth of collection. A data paper describing the dataset was published in the peer-reviewed open-access journal ZooKeys to make the dataset available and provide scholarly credit to the data publishers.