Hanny's Voorwerp: A space oddity
Date: 09 January 2011
Satellite: Hubble Space Telescope
Depicts: Hanny's Voorwerp and IC 2497
Copyright: NASA, ESA
This diagram explains the formation of the strange green object known as Hanny's Voorwerp. Astronomers believe that it is part of the long streamer of gas that extends from galaxy IC 2497, lit up brightly by the searchlight beam of a recently extinguished quasar.
Last Update: 1 September 2019