One of the most beautiful moments in astronomy that many people are interested in is the moment of seeing distant beautiful galaxies whose light left them millions to billions of years ago and reaches us in a special moment. The fact that we are observing the past of a galaxy thrills everyone.
In astronomy today, the most important task of astronomers is to write code and execute it in order to manage the data obtained through satellites. The downside is that in this method, astronomers do not always have the chance to look at every square inch of the universe while studying. However, in this article we will look at how we can have amazing experiences looking at galaxies that only a handful of people have ever seen.
Just a few decades ago, astronomers, after a long, cold, secluded night of observation, began examining the photographs they had taken. Now in the 21st century, we have access to information over the Internet, anytime, anywhere. Telescopes and satellites now provide us with a lot of data. Advanced coding is required to analyze this data. In some cases, the human eye only stares at what the computer is displaying, and we need to know that this huge amount of data contains tremendous information.
One of the largest and most advanced online tools available for viewing our world through the eyes of various Aladin Lite telescopes. With the help of this atlas, we can search the entire sky to find hidden galaxies and even decipher information about star populations and their evolution in the universe.
Let’s start our world tour by searching for one of the most stunning galaxies – the Cartwheel. On this site you can search for the name of the galaxy or its known coordinates. This galaxy appears in the center of the image. The first image we see of the Cartwheel Galaxy is the result of optical imaging by the Digital Sky Survey. The colors we see represent the various filters installed on this telescope. In other words, these filters help us see the true picture of the galaxy.
The color difference we see in the image of the galaxy is interpreted in astronomy by the different environments that surround the galaxy. It is important to note that blue areas mean warmer areas – areas with shorter wavelengths – and red areas with longer wavelengths mean colder areas.
In this galaxy, the outer ring is mostly blue and the central parts are red. This may refer to star formation and stellar activity occurring in the outer ring. This is less likely to happen at the center of the galaxy.
To study star formation, we can look at different data obtained at different wavelengths. Large amounts of ultraviolet light are emitted as young stars are forming. Studying the data, we find that this region of the galaxy may have been the home of older stars or the birthplace of less active stars.
Twenty different polls have been conducted on the Aladin site. These surveys have shown that imaging the sky at visible, infrared, ultraviolet, X-ray and gamma wavelengths is most useful.
To find out more about the chosen galaxy, we can look at images of it at different wavelengths and see its changes in a simple comparison.
The game begins now that we have completed a short training course in galaxy hunting. We can spend hours exploring incredible images and finding new galaxies with interesting and strange appearances. It is recommended to use zoom when viewing images to see details well.
The best way to do this is to just drag the atlas of the sky around. If you find something interesting in the universe, by selecting the target and clicking on it, the information about that object will be displayed.
To help you on this special journey, the findings of some of the most popular cosmic objects are given.
Spiral galaxies usually have a central rotating disk with large spiral arms that arise from denser central regions. These galaxies are incredibly beautiful. It is interesting to know that the Milky Way is also a spiral galaxy.
Elliptical galaxies are mostly non-specific and less flat than spirals. These types of objects have older stars as well as less active stellar regions than spirals.
Lens-shaped galaxies are like cosmic pancakes that appear in the night sky. This state can be considered between spiral and elliptical. Star formation in this category has stopped, but a significant amount of dust is still being produced.
There are other amazing types of galaxies that you can study with all the details and information available by doing a little searching on this site.