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Universe Today (Canadá)
Em 2024: 1 notícias
Desde 1995: 3 notícias
The Large Magellanic Cloud isn't Very Metal
Publicado em 03 abril 2024
The Large Magellanic Cloud (LMC) is the Milky Way’s most massive satellite galaxy. Because it’s so easily observed, astronomers have studied it intently. They’re interested in how star formation in the LMC might have been different than in the Milky Way.
A team of researchers zeroed in on the LMC’s most metal-deficient stars to find out how different.
The LMC is about 163,000 light-years away and about 32,000 light-years across. Even though it’s that large, [...]
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Dwarf Planet Quaoar has a Ring
Publicado em 08 fevereiro 2023Quaoar is one of about 3,000 dwarf planets in our Solar System’s Kuiper Belt. Astronomers discovered it in 2002. It’s only half as large as Pluto, about 1,121 km (697 mi) in diameter. Quaoar has a tiny moon named Weywot, and the planet and its moon are very difficult to observe in detail. Astronomers took advantage of an occultation to study the dwarf planet Quaoar and found that it has something unexpected: a ring where a moon should be. Occultations are observational gold to [...]ver notícia -
A Brown Dwarf Prevented a Regular Star from Going Through its Full Life Cycle
Publicado em 09 novembro 2017Eclipsing binary star systems are relatively common in our Universe. To the casual observer, these systems look like a single star, but are actually composed of two stars orbiting closely together. The study of these systems offers astronomers an opportunity to directly measure the fundamental properties (i.e. the masses and radii) of these systems respective stellar components. Recently, a team of Brazilian astronomers observed a rare sight in the Milky Way – an eclipsing binary composed [...]ver notícia