Observations of our neighbouring galaxy, Andromeda, made using ESA’s Flyeye telescope.
Andromeda appears so large in Earth’s sky that in angular size it is six times the diameter of the full Moon and it can be seen with the unaided eye in dark skies.
For a dedicated astronomical telescope such as the NASA/ESA Hubble Space Telescope, viewing the whole Andromeda galaxy requires stitching together hundreds of individual observations. This Hubble image of Andromeda, for example, took over 10 years and 600 snapshots to make.
Flyeye, on the other hand, is a survey telescope designed to see as much of the sky at once as possible, and to rapidly scan for new near-Earth objects. This image of Andromeda takes up just one sixteenth of the telescope’s full field of view.
The image was acquired during the telescope’s ‘first light’ campaign by combining 16 exposures, each of 30 seconds.
CREDIT
ESA
https://www.esa.int/About_Us/Week_in_images/Week_in_images_02-06_June_2025
