The space within 1000 light years is (1000/50)³ = 8000 times as large. Assuming a homogenous distribution you can expect 7 to 8 million stars in this range.
How many stars are in 1000 light years?
How many stars are there per light year?
So 100–400 billion is the common estimate. The interesting part of the questions is why. That answer is due to there being so many Red Dwarf stars, those that are 10–40% the mass and/or size of our Sun. These stars are so dim you needs really big telescopes like Hubble to see them.
What stars are 10000 light years away?
The Sagittarius Dwarf Galaxy It is approximately 78000 light years away and about 10000 light years in diameter. It is orbiting our galaxy in a period of about 1 billion years but it cannot be expected to last much longer, in a few hundred million years it will be ripped apart by our own galaxy.
How many stars are within 400 light years of Earth?
List of star systems within 45–50 light-years
| Star system | Median distance (ly) | Stars in system |
|---|---|---|
| Alpha Fornacis «Dalim» | 46.0 ± 0.4 | 2 |
| Gliese 400 | 46.0 ± 1.6 | 2 |
| WISE 0819-0335 | 46.0 | 1 |
| WISE 2209-2734 | 46.0 | 1 |
How many stars are within 100 light years of our sun?
At least 76 stars of spectral type "A" (not including white dwarf stellar remnants) are currently believed to be located within 100 light-years or (or 30.7 parsecs) of Sol.
How long would it take to travel 1 Lightyear?
about 37,200 human years Saying we were a space shuttle that travelled five miles per second, given that the speed of light travels at 186,282 miles per second, it would take about 37,200 human years to travel one light year.
How many Earth years is a Lightyear?
A light-year is the distance light travels in one Earth year. One light-year is about 6 trillion miles (9 trillion km). One light year is equal to the distance that light travels in one year (it is about ten trillion kilometers, or six trillion miles). One light years is equal to approx 6.5×10^5 earht s years.
What star is 4000 light years away?
Rho Cassiopeia The most luminous star on the map is Rho Cassiopeia – to us 4000 light years away, it is just a dim naked eye star, but in reality it is a huge supergiant star 100 000 times more luminous than our Sun.
Is Earth in the Orion Arm?
The Orion Arm is a minor spiral arm of the Milky Way Galaxy that is 3,500 light-years (1,100 parsecs) across and approximately 10,000 light-years (3,100 parsecs) in length, containing the Solar System, including Earth.