Question

How do astronomers take pictures of the universe?

Answer 1

Hint: In order to take the picture of the universe, Astronomers generally can use detectors of radio, infrared, optical, ultraviolet, X- ray and gamma ray light to create images of stars and galaxies and other cosmic objects.
Using the above methods of taking images of the Universe we will elaborate the solution.

Complete answer:
An image is an array or a matrix of square pixels arranged in rows and columns.
Without the atmosphere astronomers can take pictures of the universe in a precise manner. The technology behind space photography must surpass that of Earth bound cameras. Generally, astronomers use Telescopes, which can see amazing things and with most of the telescopes you can hook up a DSLR camera into it, or even some hook right into a computer and can take pictures there.

Astronomical images are usually taken with electronic detectors such as a CCD( charge coupled device).Different detectors and telescopes also usually have different sensitivities to different colors. A telescope such as Hubble's telescope has a fixed number of well defined filters, filters can be broadband or narrow band filters. A narrow band filter typically only lets a small wavelength span through, thus effectively restricting the transmitted radiation to that coming from a given atomic transition, allowing astronomers to investigate individual atomic processes in the object.

Note: With the help of the pictures taken by the astronomers of the universe, we got to know the appearance of other galaxies, we are able to visualize our planet earth and various places on it, that how it looks like from the space, Various other planets can also be seen and their moons.