Messier 80 in the context of "Galactic halo"

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⭐ Core Definition: Messier 80

Messier 80 (also known as M80 or NGC 6093) is a globular cluster located approximately 32,600 light-years (10,000 pc) from Earth in the constellation Scorpius. Discovered by Charles Messier in 1781, it is one of the densest globular clusters in the Milky Way, containing several hundred thousand stars within a spatial diameter of about 95 light-years.

The cluster is situated in the Galactic halo, more than twice as distant as the Galactic Center, and lies midway between the stars α Scorpii (Antares) and β Scorpii in a region rich with nebulæ. With an apparent angular diameter of 10 arcminutes, it can be observed from locations below the 67th parallel north using modest amateur telescopes, where it appears as a mottled ball of light under low light pollution conditions.

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Messier 80 in the context of Metallicity

In astronomy, metallicity is the abundance of elements present in an object that are heavier than hydrogen and helium. Most of the normal currently detectable (i.e. non-dark) matter in the universe is either hydrogen or helium, and astronomers use the word metals as convenient shorthand for all elements except hydrogen and helium. This word-use is distinct from the conventional chemical or physical definition of a metal as an electrically conducting element. Stars and nebulae with relatively high abundances of heavier elements are called metal-rich when discussing metallicity, even though many of those elements are called nonmetals in chemistry.

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LINKED FROM (PARENTS)
← Metallicity
LINKS TO (CHILDREN)
Globular cluster → Earth → Constellation → Scorpius → Charles Messier → Milky Way → Star → Galactic halo → Galactic Center → Antares → Beta Scorpii → Nebula → Arcminutes → 67th parallel north → Telescope → Light pollution →