Before revision: Arcanum — A Neptune-orbiting mission comprising a Neptune orbiter Somerville (named for Mary Somerville) and a Triton lander Bingham (named for Hiram Bingham), with an unusual additional purpose of Somerville acting as an astronomy-focused space telescope at periapsis .
After revision: Arcanum — A Neptune-orbiting mission comprising a Neptune orbiter Somerville (named for Mary Somerville) and a Triton lander Bingham (named for Hiram Bingham), with an unusual additional purpose of Somerville acting as an astronomy-focused space telescope at apoposeideum .