Can we only 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 far away is 13 billion light-years?
Also, the light we are recieving from it is 13 billion years old, so it has had 13 billion years to move even farther away….Just how far is 13 billion light-years?
| Spamizbad Ars Praefectus Registered: May 2, 2000 Posts: 4926 | Posted: Fri Nov 17, 2000 11:21 am |
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| ah so its like… walking distance? |
What star has the most light-years away from Earth?
Researchers have spotted what might be the farthest astronomical object ever found — a galaxy candidate named HD1 that they estimate is 13.5 billion light-years away. That’s an astonishing 100 million light-years more distant than the current farthest galaxy, GN-z11.
How far away is Earendel star?
28 billion light years away
But because the universe has also expanded rapidly in the time it took this light to reach us, Earendel is now 28 billion light years away from us.
What is 1 light-year away?
about 5.9 trillion miles
A light-year is the distance light travels in one year. How far is that? Multiply the number of seconds in one year by the number of miles or kilometers that light travels in one second, and there you have it: one light-year. It’s about 5.9 trillion miles (9.5 trillion km).
How far back in time can we see?
We can see light from 13.8 billion years ago, although it is not star light – there were no stars then. The furthest light we can see is the cosmic microwave background (CMB), which is the light left over from the Big Bang, forming at just 380,000 years after our cosmic birth.
How fast is 1 Lightyear in mph?
670,616,629 mph
In a vacuum, light travels at 670,616,629 mph (1,079,252,849 km/h). To find the distance of a light-year, you multiply this speed by the number of hours in a year (8,766). The result: One light-year equals 5,878,625,370,000 miles (9.5 trillion km).
What is the farthest star ever recorded?
Dubbed Earendel by Welch, which means “morning star” in Old English, the newly discovered star is some 12.9 billion years old. This means it has taken that long for the light we see today to reach us.
What is the light of earendil?
The Star of Eärendil, also known as Gil-Estel, or Rothinzil by the Edain, was a light created by the Silmaril carried into the sky by Eärendil the Mariner. It was particularly visible in the morning and evening and was referred to as the Evening Star.
What galaxy is Earendel in?
Sunrise
Earendel is in a galaxy known as Sunrise, whose light has been magnified and distorted by gravitational lenses.
How far is the black hole?
The Milky Way black hole is much closer, about 27,000 light years away.
How can the light of stars billions of light years away?
How can the light of stars billions of light years away from the earth have reached us if the earth is only thousands of years old? A light-year is the maximum distance that light can travel in one year in the vacuum of space. Consequently, it takes billions of years for light to travel billions of light-years through space.
Is the age of the Sun 14 billion years?
“The conclusion reached was that the age is about 14 billion years and, again, if one includes all sources of uncertainty — both in the observational measurements and the theoretical modelling — the error is about 700 or 800 million years, so there is no conflict because 13.8 billion years lies within the star’s error bar,” Bond said.
How many light years away is the most distant star?
The Hubble Space Telescope has glimpsed the most distant single star it’s ever observed, glimmering 28 billion light-years away. And the star could be between 50 to 500 times more massive than our sun, and millions of times brighter.
How long does it take light to travel billions of years?
Answer: Distant Starlight – A light-year is the maximum distance that light can travel in one year in the vacuum of space. Consequently, it takes billions of years for light to travel billions of light-years through space. From our vantage point here on Earth we can see light from stars that are billions of light-years away.