Wide-field view of the Triangulum Galaxy showing the extent of the survey
. This wide-field view shows the Triangulum Galaxy — also known as Messier 33 — as seen from the ground. The extent of the new huge mosaic created with the NASA/ESA Hubble Space Telescope is shown by the irregularly shaped region and the main image presented here by the rectangle within it.
NASA, ESA, Digitized Sky Survey 2.
Acknowledgement: Davide De Martin