Hallo Astrofreunde,
nachstehend möchte ich Euch ein Gemeinschaftsprojekt von Jan Beckmann, Stephan Küppers und Yves Bastian und mir vorstellen. Wir haben Im letzten Jahr einen unserer Begleiter die Zwerggalaxie PGC 3589 aufgenommen. insgesamt sind 30 Stunden Belichtungszeit zusammen gekommen.
Aufgenommen wurden 218/50/50/47 x 300 Sekunden LRGB am 12 Zoll Newton. Jan hat eine wunderbare Recherche zu metallarmen Sternen durchgeführt.
Astrobin
PGC3589, a dwarf spheroidal galaxy (dSph) located in the outskirts of the Local Group at a distance of ~90kpc, is a fascinating glimpse into the universe’s early history. Characterized by its faint glow and diffuse, elliptical structure, this small galaxy is home to some of the most metal-poor stars known. These stars contain only trace amounts of elements heavier than helium, which suggests they formed very early in cosmic history, before successive generations of star formation enriched the universe with heavier elements. Such metal-poor stars are crucial to understanding the conditions in the early universe, offering astronomers insight into the first stages of galactic evolution.
The star AS0039 (Teff = 4377 +/- 81 K, log g = 0.8 +/- 0.1) found is this galaxy is known as the most metal poor star found outside of the milky way at a metallicity of [Fe/H] = - 4.11 dex. Some research suggest it may have formed from remnants of a Population III star hypernova, the first extremely massive population of stars formed during the first era of star and galaxy formation during the era of cosmic reionization.
Despite its small size and low luminosity, PGC3589 is thought to contain a substantial amount of dark matter, which binds its loosely packed stars together and makes it more stable than it might appear.
PGC3589, a quiet and unassuming galaxy, holds the stories of ancient star populations and stands as a relic of a long-forgotten era when the first galaxies shed light into the dark universe.



nachstehend möchte ich Euch ein Gemeinschaftsprojekt von Jan Beckmann, Stephan Küppers und Yves Bastian und mir vorstellen. Wir haben Im letzten Jahr einen unserer Begleiter die Zwerggalaxie PGC 3589 aufgenommen. insgesamt sind 30 Stunden Belichtungszeit zusammen gekommen.
Aufgenommen wurden 218/50/50/47 x 300 Sekunden LRGB am 12 Zoll Newton. Jan hat eine wunderbare Recherche zu metallarmen Sternen durchgeführt.
Astrobin
PGC3589, a dwarf spheroidal galaxy (dSph) located in the outskirts of the Local Group at a distance of ~90kpc, is a fascinating glimpse into the universe’s early history. Characterized by its faint glow and diffuse, elliptical structure, this small galaxy is home to some of the most metal-poor stars known. These stars contain only trace amounts of elements heavier than helium, which suggests they formed very early in cosmic history, before successive generations of star formation enriched the universe with heavier elements. Such metal-poor stars are crucial to understanding the conditions in the early universe, offering astronomers insight into the first stages of galactic evolution.
The star AS0039 (Teff = 4377 +/- 81 K, log g = 0.8 +/- 0.1) found is this galaxy is known as the most metal poor star found outside of the milky way at a metallicity of [Fe/H] = - 4.11 dex. Some research suggest it may have formed from remnants of a Population III star hypernova, the first extremely massive population of stars formed during the first era of star and galaxy formation during the era of cosmic reionization.
Despite its small size and low luminosity, PGC3589 is thought to contain a substantial amount of dark matter, which binds its loosely packed stars together and makes it more stable than it might appear.
PGC3589, a quiet and unassuming galaxy, holds the stories of ancient star populations and stands as a relic of a long-forgotten era when the first galaxies shed light into the dark universe.