Beobachtungskampagne an zehn Observatorien entdeckt beim Zwergplaneten Haumea ein Ringsystem
Die vier größten TNOs sind als Zwergplaneten klassifiziert – mit Pluto als bekanntestem
Ten observatories in six European countries teamed up for recent observations of a stellar occultation by the dwarf planet Haumea, which surprisingly show a narrow and dense ring orbiting the dwarf planet. In addition, the astronomers at the Max Planck Institute for Extraterrestrial Physics and more than 50 further institutions were able to constrain the size, shape and density of Haumea, which are closer to theoretical predictions and less puzzling than previous estimates.
Pluto is most prominent among the four known trans-Neptunian dwarf planets, but the
Ten observatories in six European countries teamed up for recent observations of a stellar occultation by the dwarf planet Haumea, which surprisingly show a narrow and dense ring orbiting the dwarf planet. In addition, the astronomers at the Max Planck Institute for Extraterrestrial Physics and more than 50 further institutions were able to constrain the size, shape and density of Haumea, which are closer to theoretical predictions and less puzzling than previous estimates.
Pluto is most prominent among the four known trans-Neptunian dwarf planets, but the
Die adaptive Optik am Very Large Telescope hat die astronomische Beobachtungstechnik revolutioniert
nur rund 17 Lichtstunden – drei Mal soviel wie der Abstand zwischen der Sonne und Pluto
Ten observatories in six European countries teamed up for recent observations of a stellar occultation by the dwarf planet Haumea, which surprisingly show a narrow and dense ring orbiting the dwarf planet. In addition, the astronomers at the Max Planck Institute for Extraterrestrial Physics and more than 50 further institutions were able to constrain the size, shape and density of Haumea, which are closer to theoretical predictions and less puzzling than previous estimates.
Pluto is most prominent among the four known trans-Neptunian dwarf planets, but the
Ten observatories in six European countries teamed up for recent observations of a stellar occultation by the dwarf planet Haumea, which surprisingly show a narrow and dense ring orbiting the dwarf planet. In addition, the astronomers at the Max Planck Institute for Extraterrestrial Physics and more than 50 further institutions were able to constrain the size, shape and density of Haumea, which are closer to theoretical predictions and less puzzling than previous estimates.
Pluto is most prominent among the four known trans-Neptunian dwarf planets, but the
Adaptive optics technology at the Very Large Telescope has revolutionized the astronomical observation techniques
at a distance of a mere 17 light-hours – only three times the distance between Pluto
Forschende haben am Computer erfolgreich die anfängliche Größen- und Massenverteilung der Bausteine heute bekannter Planeten und Asteroiden simuliert und vorhergesagt. Das Computermodell erklärt auch, wie sich diese ursprünglichen Planetesimale von zehn bis hundert Kilometern Größe, aus zentimeter großen Pebbles formten.
einzigen Planetenembryonen, die dort entstanden, führten zu kleineren Objekte wie Pluto
Researchers have successfully simulated the initial size and mass distribution of the building blocks of planets and asteroids known today. The computer model also explains how these original planetesimals, tens to hundreds of kilometers in size, formed from centimeter-sized pebbles.
to form – the only planetary embryos that formed were even smaller objects like Pluto
In der Galaxie Holm 15A im Zentrum des Galaxienhaufens Abell 85 wurde das größte bekannte Schwarze Loch nachgewiesen. Es hat eine Masse von 40 Milliarden Sonnenmassen, ist also 10.000-mal schwerer als das Schwarze Loch im Zentrum der Milchstraße.
vergleichsweise klein, aber immer noch etwa fünfmal so groß wie die Umlaufbahn des Pluto
