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Milky Way/Age
13.61 billion years
Astronomers believe that our own Milky Way galaxy is approximately 13.6 billion years old. The newest galaxy we know of formed only about 500 million years ago.
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The Milky Way is a barred spiral galaxy with an estimated D25 isophotal diameter of 26.8 ± 1.1 kiloparsecs (87,400 ± 3,590 light-years), but only about 1,000 ...
Mass: 1.15×1012 M☉
Right ascension: 17h 45m 40.03599s
Distance: 7.935–8.277 kpc (25,881–26,996 ly)
Declination: −29° 00′ 28.1699″
Mar 23, 2022 — Scientists have confidently determined the age of our home galaxy, The Milky Way, with its most established origins dating back 13 billion ...
Mar 30, 2022 — Galactic archaeology has uncovered a spectacular find: the Milky Way already existed more than 13 billion years ago.
by T Pultarova — – Galaxy type: Barred spiral ; – Age: 13.6 billion years (and counting) ; – Size: 100,000 light-years across ; – Number of stars: about 200 billion
Mar 24, 2022 — Scientists now know the precise age of our galaxy, dating the formation of some parts of the Milky Way to just 800 million years after the ...
Dec 11, 2019 — From this, they have revised the official estimates on the age of the Milky Way's thick disk, which they conclude is around 10 billion years ...
Aug 17, 2004 — Adding the two time intervals gives the age of the Milky Way, 13,600 ± 800 million years. The currently best estimate of the age of the ...
Dec 4, 2008 — This is somewhat close to what the age of the Universe is (which hovers around 13.7 billion years). By measuring the age of these stars, and ...
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Milky Way
Galaxy
Description
The Milky Way is the galaxy that includes our Solar System, with the name describing the galaxy's appearance from Earth: a hazy band of light seen in the night sky formed from stars that cannot be individually distinguished by the naked eye. WikipediaAge: 13.61 billion years
Radius: 52,850 light years
Escape velocity: 550 km/s
Absolute magnitude: -21
Number of stars: 100–400 billion ((1–4)×1011)
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