gjdonatiello
M31 virial radius
M31 virial radius (small version)
Credit: Giuseppe Donatiello
Edit Feb. 19, 2024
It may seem incredible, but in the direction of Andromeda there is a wall of stars, gas and dust!
With the naked eye we see just the stars that outline the constellations while with very long exposures, integrating hours and hours patiently captured over the course of a few years, we record the radiation of very weak sources to the point of transforming the sky background from black to light.
The circle roughly corresponds to the region of influence of M31/M33, up to a projected virial radius of about 300 Kpc.
About 200h with 58mm f/2, 85mm f/2 mosaic
SQN=21.8
M31 virial radius
M31 virial radius (small version)
Credit: Giuseppe Donatiello
Edit Feb. 19, 2024
It may seem incredible, but in the direction of Andromeda there is a wall of stars, gas and dust!
With the naked eye we see just the stars that outline the constellations while with very long exposures, integrating hours and hours patiently captured over the course of a few years, we record the radiation of very weak sources to the point of transforming the sky background from black to light.
The circle roughly corresponds to the region of influence of M31/M33, up to a projected virial radius of about 300 Kpc.
About 200h with 58mm f/2, 85mm f/2 mosaic
SQN=21.8