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Gaia's view of the Andromeda galaxy – density map

Gaia's view of the Andromeda galaxy – density map

Date: 12 December 2017
Satellite: Gaia
Depicts: M31, Andromeda galaxy
Copyright: ESA/Gaia/DPAC

The Andromeda galaxy, or M31, the largest galactic neighbour to our Milky Way, as viewed by ESA's Gaia satellite after its first 14 months of operations. This view is not a photograph but was compiled by mapping the total density of stars detected by Gaia in each pixel of the image.

The image shows where stars of all types are located within the galaxy.

A complementary view of Andromeda, created by mapping the total amount of radiation, or flux, recorded per pixel by Gaia, is available here.

This image was produced by André Moitinho, Márcia Barros, Carlos Barata from the University of Lisbon, Portugal, and Hélder Savietto from Fork Research, Portugal. The creation of this and other similar images is described in the paper "Gaia Data Release 1: The archive visualisation service" by A. Moitinho et al. 2017, A&A, 605, A52.

Last Update: 1 September 2019
3-Dec-2022 18:05 UT

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