In this paper I want to describe how the sun works. I will also comment about its properties and how it affects us here on Earth with its radiation. Our Sun is a star and is the closest one to us by far. That gives us the opportunity to study it more closely than any other star.
Exoplanets are planets that are beyond our solar system. They have been known for a hundred years or more. They are really hard to study directly. We can still learn a lot from them though. In fact, that is why we study them. Learning about exoplanets will help us learn about the formation of our own Earth and corresponding solar system. Astronomers monitor young planets to see what Earth might have been like in its early stages. In this article I want to talk about what is known about exoplanets and how they are formed. This will obviously lead into solar system formation which is pretty interesting stuff.
There is a lot of space debris in our galaxy. It can be large or small. Space debris can be Asteroids, Comets, Meteors, or even dust. In this article I talk about all of these objects and their characteristics. I also discuss topics such as Asteroids getting close to Earth and the once-planet Pluto.
The planets of our solar system are as varied as is life on on our planet. We know that because Astronomers are constantly learning about our solar system. There is still so much to learn and it will be fun to try and keep up. This is an introduction to the planets of our solar system and if you have a burning desire to learn about space and everything inside it then keep reading and we can begin our journey.
The Moon has been up there in the sky looking back at us for as long as there has been a sky. Where did it come from? Why do we see only one side continually? The Moon is mysterious and I think we can all agree on that. There are many unanswered questions and the fact remains that many of them we just don’t know. In this article I will try to answer some of these more common questions in ways that make sense.
The solar system is very interesting. There are countless objects wandering around out there. We have learned much from even the smallest things like dust in space. The Solar System is a very complicated and busy place. To learn we measure everything we can and then compare constantly. That is the fun of it to me. I love looking at data and seeing how objects are different and all the ways in which they are the same.
How telescopes are used in modern Astronomy is changing every decade. We used to only use them to see objects with normal light. Now we can leverage our technology gains to see different wavelengths of light in the universe. This has opened up our studies with a lot more data than we previously had. This article talks about the different fields and categories of astronomy and what they mean.
Spectroscopy is one of the core techniques for understanding distant stars. We can not directly see these stars well enough to know much about them. Thanks to the fundamentals of light and how it behaves, we can collect the radiation from objects and infer many details from them. How spectroscopy is used and its definition is the subject of this article.
If you love Astronomy then looking at the sky is a regular task for you. You see all those stars and many other objects. What no one knew for a very long time is that we only see a small fraction of what the night sky is showing us. The reason why is that the light we see with our eyes is just one form of radiation. We now know of many other kinds. If you want to know more then read on and I will explain.
When I was a kid growing up in Kentucky I always loved going out at night and seeing the sky. My home was very unpopulated and so had very little light pollution. The nearest town of 3 thousand people was about 15 miles away. So it was an incredible place to dream about what may lie among the stars. That was the start of my love for science, astronomy, and physics.
I have carried this with me my whole life and always wanting to learn more because I loved it. I have always wanted to write about it as a result. This is a short guide to the universe and includes the beginning topics. From here most of the advanced concepts come from these ideas and are developed more fully.
What are Star Classifications
Have you ever wondered about star classifications ? Stars are classified based on their temperature, but started out being based on only their spectra. This classification process started in the 1890s by Edward Pickering at Harvard and was finished in 1901 by Annie Cannon, who worked for Pickering. Cannon reorganized what Pickering started in the classification that we know today. The classification is as follows “O B A F G K M” that goes from the hottest stars to the coolest stars. These classifications are further subdivided in categories “0-9” where 0 refers to early in that star and 9 refers to a late type of star.
This classification is now called the Harvard Spectral Classification. Type O stars and Type B stars are both blue-white hot stars, but Type O stars are the hottest stars. Type A stars are white stars that give off Balmer absorption lines in early A stars. Type F stars are yellow-white stars. Type G stars are yellow stars like our Sun. Type K stars are cool orange stars, whose spectra is dominated by metal absorption lines. Type M stars are cool red stars, whose spectra is full of molecular absorption lines. The Sun is classified as a Type G2 star with a surface temperature of 5777 Kelvin. These spectral classes also relate to the surface temperatures of the stars.