The oldest known star appears Montgomery al swinger be older than the universe itself, but a new study is helping to clear up this seeming paradox. Previous research had estimated that the Milky Way galaxy's so-called "Methuselah star" is up to 16 billion years old.
Now a team of astronomers has derived a new, less nonsensical age for the Methuselah star, incorporating information about its distance, brightness, composition and structure. The uncertainty Bond refers to is plus or minus million years, which means the star could actually be Scientists have known about HD for more than years, since it cruises across the sky at a relatively rapid clip.
The star moves at aboutmph 1. The star is just passing through the Earth's neck of the galactic woods and will eventually rocket back out to the Milky Way's halo, a population of ancient stars that surrounds the galaxy's familiar spiral disk.
The star's long, looping orbit is likely a residue of that dramatic act of cannibalism. Hubble's measurements allowed the astronomers to refine the distance to HD using the principle of parallax, in which a change in an observers' position — in this case, Hubble's varying position in Earth orbit — translates into a shift in the apparent position of an object.
They found that Methuselah lies With the star's distance known more precisely, the team was able White look here not older than 25 work Black busty milfs Methuselah's intrinsic brightness, a necessity for determining its age.
The scientists also applied current theory to learn more about the Methuselah star's burn rate, composition and internal structure, which also shed light on its likely age. For example, HD has a relatively high oxygen-to-iron ratio, which brings the star's age down from some of the earlier predictions, researchers Wgite.
In the end, White look here not older than 25 astronomers estimated that HD was born Further observations could help bring the Methuselah star's age down even further, making it unequivocally younger than the universe, researchers said.
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Let us know at community space. This Digitized Sky Survey image shows the oldest star with a well-determined age in our galaxy.
Called the Methuselah star, HD is Astronomers refined the star's age to about Image released March 7, This is a backyard view of the sky surrounding the ancient star, cataloged as HDwhich lies The star is the oldest known to astronomers to date.