As you gaze through a telescope at the stars, you wonder what is a star? Is it fire? Is it gas? Is it magic? Is it a firefly in the sky? Most people don’t spend time on finding out what a star is – they leave that to the Astronomers, but a star is not made of magic that’s for sure… _Sun-A star is a burning ball of gas in space. A star is made up of mostly hydrogen and helium, see no magic…The closest star to earth – the sun, is made out of hydrogen, and helium too! The sun is a big deal, it’s the heart of our solar system after all, meaning it is right in the middle! Yep we aren’t the center of attention – even if there is no other planet quite like earth. The sun gives the world warmth..
But did you know up close the sun’s 10,000 F? But it gets hotter, but it gets hotter whether you believe it or not! If you teleported into the inner core you would be dead before you could say, “Hot!”. The inner core of the sun has an extreme temperature of 27,000,000 F! How hot a star is isn’t all there is though! The biggest stars dominate over the others, and the sun is about 300,000 times bigger than earth! That means if you were immune to heat, you still wouldn’t be able to go across the whole sun! Plus the sun is made up of pure gas, so us humans can’t stand on the sun even if it wasn’t extremely to hot. Before I start talking more about stars in general let me add that the sun is going to become a red giant soon, it’s been estimated that it will happen in about 5 billion years, so no worry! The sun is estimated burn Mercury, and venus – then reach earth._Stages of life-Everything that is alive meets its end. A stars life all starts with a very young star that is still gathering mass from its parent cloud.
More gas is added, and the weight grows. As more gas is added the molecules move quicker, making the star grow hotter. Once a protostar reaches a certain temperature, a nuclear fusion occurs – say happy birthday! This little protostar just turned into a real star! A star can take three different routes it can become a sun-like star – believe it or not is the smallest route to take… Both a larger star and a giant star end up as a Red supergiant. But a small star becomes a normal red giant.
When a star becomes a red giant (Or supergiant) it is nearing its last stages, it only has 3 stages left – but we’re not there yet. While i’m on the topic of stars, and before this star we’ve been watching explodes again, I want to say that supergiants are actually the biggest star in the universe. KABOOM! There it goes! I probably shouldn’t be happy.. Technically that star we were watching has a nuclear explosion, and is dead now..
Let’s not talk about death.. Anyways.. The star is now a nebula, this can be recycled into many different stars for this is the remains of the star. A nebula is Latin for a cloud or fog.
Nebula’s are clouds of dust, hydrogen, helium, and other gases. There is not much to say for Nebula’s so i’ll just go to a neutron stars, which is the last stage of the large or giants stars. A neutron star is a giant/large star outcome, the star had died and their core collapsed. Some leftovers melted together to form a neutron star which is about the size of a city. Thats a happy ending.
..NOPE. Giant stars can also create a blackhole, but for now let’s finish up the sun-like stars life line! After a sun-like star becomes a red giant – death is right around the corner, because soon that star will become a planetary nebula. A planetary nebula is when a red giant burns up all it’s hydrogen, and helium, and then starts to shed its outer layers. Then they become a white dwarf.
The star is now.. Well dead, the next and final stage of a sun-like star is a black dwarf. To get there the white dwarf needs to cool down, the white dwarf is at a very high temperature. They don’t generate energy so soon they should cool down..
.soon.. Nope! Sorry but you’ll never get to see a black dwarf. It is calculated that it is gonna take longer than the universe has been alive for a black dwarf to form. Guess what? The universe is around 13.8 billion years old…yeah.
. None exist yet… Hey, at least we can talk about black holes now! _Black holes-We have talked about Supernovae occurrences, stars from a sun-like star to a giant one. But we haven’t talked about black holes. A black hole is a outcome of a large or giant star. A black hole occurs when a nebula runs out of hydrogen and helium, and there is nothing to hold up the star, and the core collapses into a black hole.
As everyone knows black holes have very strong gravity. Black holes suck in dust, rocks, even light, couldn’t escape a black hole. Anything going to slowly by the black hole, would be devoured.
If you go quickly enough by it you might not be sucked in – it depends on how strong._Noavae-We have talked about Supernova, explosions that appear at the end of a star’s lifetime, but we need more explosions! A novae occurs when a white dwarf takes gas from a neighboring star, and it explodes. After awhile it can be a million times brighter than usual. I won’t get to far into detail with novaes since it’s just a good thing to know._Constellations-Everyone knows what a constellation is..
right? Just in case i’ll just tell you. A constellation is a group of stars that form a picture. An example is Cygnus, Cygnus is latin for swan the constellation best – viewed in September.