How long is the Milky Way km?

How long is the Milky Way km?

“The Milky Way is about 1,000,000,000,000,000,000 km (about 100,000 light years or about 30 kpc) across. The Sun does not lie near the center of our Galaxy. It lies about 8 kpc from the center on what is known as the Orion Arm of the Milky Way.”

How far is Milky Way from Earth?

“It is estimated that the edge of the Milky Way lies about 950,000 light years away from the galactic center while the Earth lies about 26,670 light years away from the galactic center. Therefore, the Earth lies about 923,330lightyears away from the edge of the Milky Way.”

How deep is the Milky Way?

“The structure of the Milky Way According to the best current knowledge, the Milky Way is about 100,000 light-years across, about 2,000 light-years deep, and has 100 to 400 billion stars.”

How long would it take to cross 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.”

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 galaxies are there?

“The Hubble Deep Field, an extremely long exposure of a relatively empty part of the sky, provided evidence that there are about 125 billion (1.25×1011) galaxies in the observable universe.”

Can human go to Milky Way?

“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 Earths can 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.”

Can humans see the Milky Way?

“About Viewing the Milky Way Looking toward the dark skies at the right time of year, the naked human eye should see a whitish glow stretching in a huge arc. This band has been visible in the heavens since Earth first formed.”

How hot is the Milky Way?

“Using deep X-ray observations from ESA’s XMM-Newton Observatory, astronomers have discovered that Milky Way’s halo — a large cloud of ionized plasma surrounding the Galaxy — has a temperature of 10 million degrees Kelvin (about 18 million degrees Fahrenheit) — about 10 times hotter than previously estimated.”

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.”

Is there anything bigger than Milky Way?

“The Milky Way is big, but some galaxies, like our Andromeda Galaxy neighbor, are much larger. The universe is all of the galaxies – billions of them!”

How many years is 500 light years?

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

How many universes are there?

“In a new study, Stanford physicists Andrei Linde and Vitaly Vanchurin have calculated the number of all possible universes, coming up with an answer of 10^10^16.”

Is it possible to leave the Milky Way?

“To escape the gravitational clutches of our galaxy, a spaceship would need to zoom out of our solar system and hit 537 kilometres per second. For context, a rocket needs to roar off at just 11.2 kilometres per second to escape Earth’s gravity. Conventional rocket engines would never make it.”

How many black holes are in the Milky Way?

“Astronomers estimate that 100 million black holes roam among the stars in our Milky Way galaxy, but they have never conclusively identified an isolated black hole.”

What is the biggest star in the Milky Way?

“The largest known star (in terms of mass and brightness) is called the Pistol Star. It is believed to be 100 times as massive as our Sun, and 10,000,000 times as bright! In 1990, a star named the Pistol Star was known to lie at the center of the Pistol Nebula in the Milky Way Galaxy.”

How heavy is the universe?

“Eddington gives the mass of the universe as 1022 stars averaging our sun in weight. Taking 2.0 × 1027 tons as the sun’s weight, then the mass of the universe would be 2.0 × 1049 tons.”

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 big is the biggest Milky Way?

“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 light years thick at the spiral arms (more at the bulge).”

Can humans reach the Milky Way?

“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 stars are in the Milky Way 2022?

“Astronomers estimate there are about 100 thousand million stars in the Milky Way alone.”