FAQ About The James Webb Space Telescope
With its extremely high spatial resolution in the infrared range, the James Webb Space Telescope can make details visible in the cosmos that we have never been able to observe before. This section of a star-forming region called NGC 3324 is located in the Carina Nebula. Here, new stars are created from gas and dust.
It is located around 1.5 million kilometers from Earth on its side facing away from the sun. James Webb is therefore always at the same distance from Earth - about four times further away than the moon - but does not orbit around the Earth, but with it around the Sun, always on our night side.
“James Webb” was launched into space aboard an Ariane launch vehicle from the European spaceport Kourou in French Guiana on December 25 - after previous cost explosions and ever new postponements. The space agencies of the USA, Canada and Europe are cooperating on the project.
The telescope was placed in orbit more than one and a half million kilometers from Earth, about four times as far away as the moon. Unlike “Hubble,” the “James Webb” telescope does not revolve around the earth, but around the sun.
A telescopic mirror with a diameter of eight meters collects about a million times more light than a human eye completely adapted to darkness with a wide open pupil. With such a telescope, our sun could still be seen from a distance of up to 60,000 light years.
The edge of our universe is currently defined at a distance of 13.819 billion light years. That's how far the best telescopes go. A light year is about 10 trillion kilometers. So people can look almost 140 quintillion kilometers into space.
The James Webb Space Telescope has roughly the same resolution in the infrared at two micrometers as the Hubble Space Telescope in the optical. The images themselves won't get much sharper and more brilliant, that's just going to be in a different wavelength range.
There is no outer edge of the universe — regardless of whether it is finite or infinitely large. However, there are fundamental limits to observability for every place in the universe: the cosmic horizons. They are the result of the finite vacuum speed of light.
The Omegon telescope N 76/900 EQ-2 is designed to enter the world of astronomy. In addition to Mars, the lunar craters, this telescope is also suitable for seeing the rings around Saturn. This model is equipped with very good color correction, which helps you recognize objects in the sky better.
When it comes to galaxies, it should definitely be a reflecting telescope with a 200mm aperture or more, because it is only from this aperture that galaxy observation becomes interesting in our opinion. Of course, such optics are also suitable for planets.
A cheap and good telescope costs between 150 and 300 euros. In the mid-price range, telescopes are available for 600 to 1,500 euros. However, you will not receive particularly high-quality reflecting telescopes for less than 1,500 to 3,000 euros.
This is another island of 200 billion suns, and so on and so on. As far as you can see in the universe, as far as light reaches us, we estimate that there are again about 100 billion of these star islands or galaxies.