How big is the entire Milky Way?

How big is the entire Milky Way?

“Our galaxy probably contains 100 to 400 billion stars, and is about 100,000 light-years across. That sounds huge, and it is, at least until we start comparing it to other galaxies. Our neighboring Andromeda galaxy, for example, is some 220,000 light-years wide.”

How many Earths would fit in the Milky Way?

“As there are about 100 billion stars in the galaxy, there are at least 17 billion Earth-size worlds in this galaxy alone.”

How much bigger is the Milky Way than the sun?

“Add it all together, and the Milky Way — with its few billion stars — ends up clocking in at roughly 1.5 trillion times the mass of our sun.”

How long would it take to travel across the Milky Way?

“Even if you could travel at the speed of light (300,000 kilometers, or 186,000 miles, per second), it would take you about 25,000 years to reach the middle of the Milky Way. If we could travel outside our galaxy and look back, this is what our Milky Way Galaxy might look like from above.”

Why is space infinite?

“There’s a limit to how much of the universe we can see. The observable universe is finite in that it hasn’t existed forever. It extends 46 billion light years in every direction from us. (While our universe is 13.8 billion years old, the observable universe reaches further since the universe is expanding).”

How many galaxies are in the universe?

“This tiny patch of sky was full of galaxies, almost 10,000, of all different sizes and shapes. By multiplying this number by the number of times this tiny patch of sky would fit into the entire sky, astronomers came up with an estimate of between about 100 and 200 billion galaxies.”

How many universes are in space?

“While estimates among different experts vary, an acceptable range is between 100 billion and 200 billion galaxies, said Mario Livio, an astrophysicist at the Space Telescope Science Institute in Baltimore, Maryland.”

What will the Milky Way look like in 1 trillion years?

“Our Milky Way will have lost its identity long ago through merging with the Andromeda galaxy, M31. The resulting giant elliptical galaxy will be devoid of dust and gas. The night sky will be a largely homogeneous sprinkling of stars. Stellar density will concentrate toward the galactic core.”

What galaxy is heaven in?

“əˈkeɪ. ə/; Hawaiian for “open skies” or “immense heaven”) is the galaxy supercluster that is home to the Milky Way and approximately 100,000 other nearby galaxies….”

“

Laniakea Supercluster
Right ascension	10h 32m
Declination	−46° 00′
Brightest member	Milky Way (mag –5.0)
Number of galaxies	100,000–150,000

“

How fast is Milky Way moving?

“And how fast is the Milky Way Galaxy moving? The speed turns out to be an astounding 1.3 million miles per hour (2.1 million km/hr)! We are moving roughly in the direction on the sky that is defined by the constellations of Leo and Virgo.”

How many suns are in our galaxy?

“There are likely to be many more planetary systems out there waiting to be discovered! Our Sun is just one of about 200 billion stars in our galaxy.”

How many suns would it take to fill the Milky Way?

“The Milky Way has a mass of 1.5 trillion suns.”

Can we ever leave our galaxy?

“The technology required to travel between galaxies is far beyond humanity’s present capabilities, and currently only the subject of speculation, hypothesis, and science fiction. However, theoretically speaking, there is nothing to conclusively indicate that intergalactic travel is impossible.”

How many years is 500 light years?

“It would take 500 years to travel 500 light-year distance at the speed of light.”

Which is the biggest planet in the Milky Way?

“Largest Planet: Jupiter Jupiter’s mass is more than 300 times that of Earth, and its diameter, at 140,000 km, is about 11 times Earth’s diameter.”

How big is the Milky Way compared to the whole universe?

“The observable Universe is 93 billion light-years, yet, our galaxy, the Milky Way, is just 100,000 light-years in diameter. It would take us endless generations just to explore our galaxy, let alone the Universe.”

Is ton 618 bigger than the Milky Way?

“In the case of TON 618, the enormous Lyman-alpha nebula surrounding it has the diameter of at least 100 kiloparsecs (330,000 light-years), twice the size of the Milky Way.”

Can we see the entire Milky Way?

“It takes 250 million years for our Sun and the solar system to go all the way around the center of the Milky Way. We can only take pictures of the Milky Way from inside the galaxy, which means we don’t have an image of the Milky Way as a whole.”

How big is the Milky Way compared to Earth?

“Answer: Assuming a diameter for the Milky Way galaxy of about 15 kpc, which is about 4.6×10^(17) km, and a diameter for the Earth of about 12756 km, the ratio of the diameter of the Milky Way galaxy to that of the Earth is about 3.6×10^(13).”