Cometary Activity from Minor Planet 2015 VP51 Discovered with Citizen Science

Abstract

Abstract We report the discovery of cometary activity emanating from minor planet 2015 VP51 outbound from its recent perihelion passage. The activity, in the form of a diffuse tail, was first identified by volunteers of our Citizen Science program Active Asteroids, a NASA Partner program hosted on the Zooniverse platform. This discovery was aided by the recently implemented TailNet artificial intelligence assistant which filters out images with a low likelihood of showing cometary activity. The tail is present in nine images of 2015 VP51 from the Dark Energy Camera and OmegaCAM between UT 2015 August 2 and UT 2015 October 18. We classify 2015 VP51 as a Jupiter-family comet based on its Tisserand parameter with respect to Jupiter T J = 2.931.