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Astronomy in general is a huge subject, as vast as the universe it describes. Star astronomy is just one part of the overall science and hobby. There is more than a single person could study in a lifetime just in our own solar system. Some people, then, decide to become experts on the stars.

The closest star we know is our sun, about 94,000,000 miles away from Earth. Its heat is staggering when the amount of heat the earth receives from it over that great distance is realized. The sun contains about 98% of the mass in our entire solar system. That’s compared to all the planets, moons, space rocks and other material. If someone wanted to they could fit 105 Earths across the face of the sun, and over 1.3 million earths inside the Sun. The nuclear reaction at the Sun’s core comes from pressure 340 billion times that at sea level on earth and temperatures of over 27,000,000 F. That would burn toast to a crisp instantly.

Because it’s much closer to Earth than any other star, the sun is studied far more than all the other stars put together. It’s about 250,000 times closer to Earth than the next known star. But when you travel far from Earth star astronomy really starts to hum. From the Earth about 5,000 stars, every one in our own Milky Way galaxy, can be seen with the naked eye. Using telescope, a person can see far more of the 1×10^22 stars estimated in the universe. By the way, that’s a 1 followed by 22 zeros. Hundreds of thousands of stars come into view even with an amateur telescope. That is amazing! Professionals using larger telescopes can see other galaxies that contain over 200 billion stars. Just counting that many is a lifetime of work.

Star astronomy experts have now proven that many other stars have planets. Planets cause stars to wobble, and that can be measured. In 2008, for the first time, astronomers took visible light photographs of planets orbiting distant suns. Maybe one of those planets contains intelligent life.

Is an intergalactic war in our near future? That’s doubtful. But star astronomy and its study of our own Sun and all the stars in the universe will continue. Maybe it also continues somewhere on another planet, Maybe someone on one of those other planets is watching us.

Finally, Id like to thank you for reading this article and i hope it was helpful information.

We cannot defend freedom abroad by deserting it at home. ~Edward R. Murrow

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