gjdonatiello
Andromeda Galaxy [Ultra-deep version 2020]
RA center: 0h 42' 42"
DEC center: +41° 5' 56"
Andromeda Galaxy [Ultra-deep version 2020]
Credit: Giuseppe Donatiello
This is the sum of many images acquired over several years, mainly with telephoto lenses and small refractors.
It is also part of a larger mosaic covering the entire 400 kpc region around M31. Of course, this image does not have "aesthetic" purposes but only for study.
About ultra-deep imaging, I suggest the reading of this scientific paper: arxiv.org/pdf/2001.05746.pdf
(J2000) RA: 00h 42m 44.3s Dec: +41° 16′ 9″ (core)
The Andromeda Galaxy, or Messier 31 (M31) and NGC 224, is a spiral galaxy approximately at 780 kiloparsecs (2.5 million light-years). It is the largest menber of the Local Group of galaxies, which also contains the Milky Way, the Triangulum Galaxy, and other smaller galaxies.
This image offers a good overview of the main structures on the disc and the outer stellar halo of Andromeda (M31).
The disc appears quite regular and there is an abundant presence of young stars, gases and dusts. The bulge is dominated by an older population. The external halo presents various irregularities and thickenings that we can consider as vestiges of dwarf galaxies incorporated progressively by the greater galaxy, as foreseen by the growth models.
M31 is thought to have assimilated a hundred small galaxies or globular clusters. This process is still ongoing.
Scientific data are available on request for serious galactic archeology studies.
Andromeda Galaxy [Ultra-deep version 2020]
RA center: 0h 42' 42"
DEC center: +41° 5' 56"
Andromeda Galaxy [Ultra-deep version 2020]
Credit: Giuseppe Donatiello
This is the sum of many images acquired over several years, mainly with telephoto lenses and small refractors.
It is also part of a larger mosaic covering the entire 400 kpc region around M31. Of course, this image does not have "aesthetic" purposes but only for study.
About ultra-deep imaging, I suggest the reading of this scientific paper: arxiv.org/pdf/2001.05746.pdf
(J2000) RA: 00h 42m 44.3s Dec: +41° 16′ 9″ (core)
The Andromeda Galaxy, or Messier 31 (M31) and NGC 224, is a spiral galaxy approximately at 780 kiloparsecs (2.5 million light-years). It is the largest menber of the Local Group of galaxies, which also contains the Milky Way, the Triangulum Galaxy, and other smaller galaxies.
This image offers a good overview of the main structures on the disc and the outer stellar halo of Andromeda (M31).
The disc appears quite regular and there is an abundant presence of young stars, gases and dusts. The bulge is dominated by an older population. The external halo presents various irregularities and thickenings that we can consider as vestiges of dwarf galaxies incorporated progressively by the greater galaxy, as foreseen by the growth models.
M31 is thought to have assimilated a hundred small galaxies or globular clusters. This process is still ongoing.
Scientific data are available on request for serious galactic archeology studies.