how old is the milky way

JBC September 5, 2019 at 10:04 pm. 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 old. THE SUPERMASSIVE black hole at the centre of the Milky Way exploded 3.5million years ago, according to astronomers. Wow. The Sun does not lie near the center of our Galaxy. We really can’t say how old the Milky Way is. Think the Milky Way is big? Old stars were expected to move at an angle to the Galactic disc, while only younger stars - like the Sun - were though to be stuck inside the disc swirling around the Milky Way. How can […] The Milky Way belongs to a cluster of at least 40 galaxies. Not bad for a mid-size galaxy! How old is the Milky Way? It's no secret that the Milky Way is big, but new research shows that it may be much bigger than we ever imagined. Log in. It's puny compared to M87, an elliptical galaxy 980,000 light years in diameter. Join now. The Milky Way is among the oldest of galaxies. The Milky Way is the galaxy in which our own planet and solar system resides. Add your answer and earn points. The Milky Way contains between 100 and 400 billion stars. goring. That’s one way of looking into the past, but in our case we simply look for stars that are already very old—and that’s why we call it stellar archaeology. It has a similar mass to the Milky Way. Once a white dwarf forms, it has no way to produce new energy, so it gradually cools. 13.51 billion years How old is the Milky Way compared to the universe? « on: 18/03/2014 22:01:12 » If it is known, how do they know? The oldest stars in the Milky Way are 13.4 billion years, give or take 800 million years. The mass of the Milky Way is believed to be around 100 billion times that of the Sun, which would translate to the fact that our galaxy might have around 100-400 billion stars. But what we can say is it is going to cease being the Milky Way in somewhere between five and seven billion years from now when it merges with the Andromeda Galaxy. The Milky Way is about 1,000,000,000,000,000,000 km (about 100,000 light years or about 30 kpc) across. Hi, I live in Arizona and my husband and I take many drives out of the Phoenix valley with our kids to escape the heat. Another clue comes when astronomers map young, bright stars and clouds of ionized hydrogen in the Milky Way's disk. 1. Our sun is the nearest of the 600 billion stars in this galaxy, is about 4.56 Billion years old so the milky ways probably older than that too. The exact number is not known. It lies about 8 kpc from the center on what is known as the Orion Arm of the Milky Way. The Milky Way is about 13.2 billion years old, whereas the Solar System is a mere 4.6 billion years old. How old is the Milky Way? 141 thoughts on “ The Elusive Milky Way – How to Find It! 6 days ago... will align for spectacular heavenly sight Rice Univ. The Milky Way is believed to be around 12 billion years old. Each 'globular cluster' is very old and contains up to one million stars. The milky way consists of 2 x 10^4 kilo of mass.Using the ratio of the mass of the sun will yield 1 trillion average stars.Using the mass of the Universe … When did the first stars in our galaxy ignite ? It takes its name from the Milky Way, the irregular luminous band of stars and gas clouds that stretches across the sky as seen from Earth. The Milky Way is only 100,000 light years in diameter. These clouds, called HII regions, are ionized by young, hot stars and are basically free protons and electrons.These are both important marker of spiral arms in other spiral galaxies we see, so mapping them in our own galaxy can give a clue about the spiral nature of the Milky Way. Hi KIDZ! what a splendid series of podcasts you guys are producing, thanks, sp How old is the Milky Way Galaxy? Stars in the Milky Way Galaxy. The age is determined by taking the age of the stars in the Milky Way. Spitzer Space Telescope's infrared cameras penetrate much of the dust, revealing the stars of the crowded galactic center region of our Milky Way. How old is the Milky Way Galaxy ? A proper understanding of the formation and evolution of the Milky Way system is crucial for our knowledge of the Universe. How old is the Milky Way - 16539572 1. I grew up all over in California and especially Northern California, where, in the 90’s we had an amazing view of the Milky Way visiting family up by Paradise. And, even more stunningly, it has a galactic bulge , the tightly packed concentration of stars found in the middle of most spiral galaxies. The new observations suggest it was indeed one of the first to get under construction. The Milky Way contains at least 100 billion stars and may have up to 400 billion stars. 1 year ago. Milky Way Galaxy Not counting transient events such as gamma-ray bursts, the brightest object in the gamma-ray sky is the plane of our Milky Way Galaxy. It turns out that the oldest of the globular clusters surrounding our galaxy are about 13 billion years old, which means the Milky Way must be at least that old. The cooler the white dwarfs in a globular cluster, the older it is. Lv 6. The sun is approximately 4.5 billion years hence much younger than the milky way Not only does it measure some 120,000–180,000 light-years in diameter, it is home to planet Earth, the birthplace of humanity. How old is the Milky Way ? Astronomers have known that the Milky Way is among the oldest of galaxies. Answered How old is the Milky Way 2 See answers HEEEEEEYY was it right?? jaz33jr 05/20/2020 Geography High School +5 pts. But compared to other galaxies and star clusters The Milky Way is small. If you are still unsure, our galaxy is called the ‘Milky Way’ The Milky Way galaxy is a disc shaped spiral galaxy with a huge collection of stars, about 100-400 billion. One of these is our Sun, which looks huge to us here on the ground, but is not even one of the biggest in the Milky Way. This glow results from a vast sea of cosmic-ray particles slamming into interstellar gas and dust, generating gamma rays. Outside the main spiral are about 200 ball-shaped clusters of stars. Answer Save. We don’t know exactly, but we know it’s over 200 billion. Look out on a clear night, and with no light pollution, and billions of stars form a band of light, which in antiquity was given the name Galaxias by the Ancient Greeks, and Via lactea by educated Romans, both of which have the root in the word “milk”. The study which describes their findings – titled "The K2-HERMES Survey: age and metallicity of the thick disc" – recently appeared in the Monthly Notices of the Royal Astronomical Society. 9 Answers. How old is the Milky Way galaxy? Ask your question. Relevance. The milky way was estimated to be more than 13.2 billion years old in 2007 from a galxic star analysis. The so-called Local Group has two large spiral galaxies – the Milky Way … The Milky Way Galaxy is an immense and very interesting place. Welcome to a BRAND NEW SEASON of the DR. Binocs show. The radius of the Milky Way is estimated to be around 52.850 light-years. The milky way galaxy is 120,000Ly in diameter, so definitely older than 120,000 years. Join now. The oldest star thats been observed in this galaxy was approximated to be about 13 Billion years old. This is somewhat close to what the age of the Universe is (which hovers around 13.7 billion years). - 2811602 johnwickph2011 is waiting for your help. 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