How long would it take to travel 28 billion light years?
How long would it take to travel 28 billion light years?
Traveling at light speed, it would take 3,000 years to get there. Or 28 billion years, going 60 mph.
How long would it take to travel 46 light years?
We don’t see stars and galaxies at a proper distance of 46 Gly, because this distance corresponds to a light travel time of 13.7 billion years, or very shortly after the big bang.
How far is 46.5 billion light years?
The comoving distance from Earth to the edge of the observable universe is about 14.26 gigaparsecs (46.5 billion light-years or 4.40×1026 m) in any direction.
Can we see 45 billion light years away?
We can see objects up to 46.1 billion light-years away precisely because of the expanding universe. No matter how much time passes, there will forever be limits on the objects we can observe and the objects that we can potentially reach.
Why can’t we see 15 billion light years away?
Answer and Explanation: Because the universe is estimated to be less than 14 billion years old, conventional wisdom would indicate that we can’t see a galaxy 15 billion light-years away because, if anything exists 15 billion light-years away at all, its light hasn’t had enough time to reach us.
How far is 32 billion light years?
| GN-z11 | |
|---|---|
| Distance | 32 billion ly (9.8 billion pc) (present proper distance) 13.4 billion ly (4.1 billion pc) (light-travel distance) |
| Apparent magnitude (V) | 25.8H |
| Characteristics | |
| Type | Irregular |
How can we see 13 billion light years away?
We know that light takes time to travel, so that if we observe an object that is 13 billion light years away, then that light has been traveling towards us for 13 billion years. Essentially, we are seeing that object as it appeared 13 billion years ago.
How can the universe be 93 billion light years?
We are able to see the farthest galaxy almost 13.8 billion light years away. The scientists have estimated their current location, due to the expansion of the universe as 46.5 billion light years away, hence the diameter of the visible universe is 93 billion light years.
How long would it take to travel 100 trillion light years?
Some galaxies will have fallen over the cosmic horizon, where no amount of time would ever let you reach them. If you wanted to travel 100 trillion light years away, you could make the journey in 62 years.
What is 1 light-year in human years?
How big is the unknown universe?
This means the unobservable Universe, assuming there’s no topological weirdness, must be at least 23 trillion light years in diameter, and contain a volume of space that’s over 15 million times as large as the volume we can observe.
How old is the Milky Way?
Astronomers believe that our own Milky Way galaxy is approximately 13.6 billion years old.
Is the universe 7 trillion light years?
They found that the universe is at least 250 times larger than the observable universe, or at least 7 trillion light-years across. “That’s big, but actually more tightly constrained that many other models,” according to 2011 MIT Technology Review (opens in new tab) report.
How big was the universe after 1 second?
When the Universe was one second old, it was too hot to form stable nuclei; protons and neutrons were in a sea of hot plasma. Also, the entire observable Universe would have a radius that, if we drew it around the Sun today, would enclose just the seven nearest star systems, with the farthest being Ross 154.
What is the farthest object in the universe?
The galaxy candidate HD1 is the farthest object in the universe (Image credit: Harikane et al.) A possible galaxy that exists some 13.5 billion light-years from Earth has broken the record for farthest astronomical object ever seen.
Is the Milky Way 200000 light years?
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).
How old is the oldest light can see?
Bottom line: New observations of the oldest light in the universe indicate that the cosmos is 13.77 billion years old, and help resolve inconsistencies with other previous estimates.
What is beyond the universe?
The trite answer is that both space and time were created at the big bang about 14 billion years ago, so there is nothing beyond the universe. However, much of the universe exists beyond the observable universe, which is maybe about 90 billion light years across.
How long would it take to travel 1 billion light-years?
If your spacecraft could travel at 1% of the speed of light, or about 3,000 km/second, it would take you: 300,000 / 3000 x 1 billion light years ==100 billion years to travel a distance of 1 billion light years.
How can a star be 28 billion light-years away?
At that time it was 4 billion lightyears away from the proto-Milky Way, but during the almost 13 billion years it took the light to reach us, the Universe has expanded so that it is now a staggering 28 billion lightyears away.” The stars we see in the night sky all exist in our own Milky Way galaxy.
How long would it take to travel 1 lightyear?
It would take a spacecraft approximately 10,000 years to travel one light year. This is because the speed of light is roughly 300,000 kilometers per second and it takes about 9.5 trillion kilometers to make up one light year. So if you were traveling at the speed of light it would still take you 10,000 years!
How long would it take to travel 25 000 light-years?
The closest galaxy is the recently discovered Canis Major dwarf galaxy, which is “only” 25,000 light-years away. So it would take 25,000 years to get there if you traveled at the speed of light. Actually, that’s the amount of time it would take from the perspective of the outside world.
About Author
