A Star is Born Miracle Osborne by Miracle Osborne https://padlet.com/439122/pztrmfaxq98v Mr. Lee period 8 en-us 2019-01-09 19:52:22 UTC 2019-01-15 04:41:10 UTC hello@padlet.com https://padlet-assets.s3.amazonaws.com/icons/Brightnessdown.png Alpha Centauri A 439122 https://padlet.com/439122/pztrmfaxq98v/wish/319071684 2019-01-10 02:04:33 UTC https://padlet.com/439122/pztrmfaxq98v/wish/319071684 What makes up Alpha Centauri A 439122 https://padlet.com/439122/pztrmfaxq98v/wish/319072381 Stars are made up of hydrogen and Helium and have many layers]]> 2019-01-10 02:10:53 UTC https://padlet.com/439122/pztrmfaxq98v/wish/319072381 Layers 439122 https://padlet.com/439122/pztrmfaxq98v/wish/319444146 from the center then outwards is the core, the Radiation Zone, the Convection Zone, the photosphere, the chromosphere, and the corona ]]> 2019-01-10 19:46:47 UTC https://padlet.com/439122/pztrmfaxq98v/wish/319444146 Alpha is a G2 V star, and it is slightly more larger and luminous than our sun 439122 https://padlet.com/439122/pztrmfaxq98v/wish/319450300 2019-01-10 19:56:50 UTC https://padlet.com/439122/pztrmfaxq98v/wish/319450300 At first, in space there is a cloud of gas, with the basic material that allows for star formation. For that to happen, it all has to be compressed into one spot 439122 https://padlet.com/439122/pztrmfaxq98v/wish/319760801 This is called a nebulae. Either the star is a massive star or an average star. Alpha Centauri A is an average star ]]> 2019-01-11 16:55:01 UTC https://padlet.com/439122/pztrmfaxq98v/wish/319760801 Most times, two things can happen, either a supernova occurs throwing matter into a nebula, pushing things together or two nebulae can come together and form a very dense cloud. It is unknown for which one happened for Alpha. 439122 https://padlet.com/439122/pztrmfaxq98v/wish/319776292 2019-01-11 17:25:28 UTC https://padlet.com/439122/pztrmfaxq98v/wish/319776292 The core is where Nuclear Fusion happens, all energy comes from the core and it converts hydrogen atoms to helium 439122 https://padlet.com/439122/pztrmfaxq98v/wish/319852860 2019-01-11 19:57:30 UTC https://padlet.com/439122/pztrmfaxq98v/wish/319852860 The radiation zone is where energy travels through in the form of photons 439122 https://padlet.com/439122/pztrmfaxq98v/wish/320575166 2019-01-14 23:56:29 UTC https://padlet.com/439122/pztrmfaxq98v/wish/320575166 When the energy travels to the convection zone, it travels in the way of water boiling in a pot, so, its moving in convection 439122 https://padlet.com/439122/pztrmfaxq98v/wish/320575925 2019-01-15 00:02:00 UTC https://padlet.com/439122/pztrmfaxq98v/wish/320575925 The photosphere is a very thin layer and emits the most light 439122 https://padlet.com/439122/pztrmfaxq98v/wish/320577152 2019-01-15 00:10:39 UTC https://padlet.com/439122/pztrmfaxq98v/wish/320577152 The chromosphere is the middle-most layer in the atmosphere of Alpha A and can be seen during an eclipse. It appears as a pinkish-red layer. 439122 https://padlet.com/439122/pztrmfaxq98v/wish/320578530 2019-01-15 00:19:22 UTC https://padlet.com/439122/pztrmfaxq98v/wish/320578530 The corona is the outer-most layer of Alpha A and is so bright that you can only see it during an eclipse 439122 https://padlet.com/439122/pztrmfaxq98v/wish/320580925 2019-01-15 00:33:25 UTC https://padlet.com/439122/pztrmfaxq98v/wish/320580925 When gravity gets so strong a bunch of gas rush towards it and then a huge explosion occurs, called a 'collapse' in the middle of it was a brand new star Alpha Centauri A. 439122 https://padlet.com/439122/pztrmfaxq98v/wish/320598124 2019-01-15 02:23:31 UTC https://padlet.com/439122/pztrmfaxq98v/wish/320598124 This is called a protostar. After the explosion, the new star pushes away all gas trying to crush it. 439122 https://padlet.com/439122/pztrmfaxq98v/wish/320603349 2019-01-15 02:58:52 UTC https://padlet.com/439122/pztrmfaxq98v/wish/320603349 At this Stage Alpha A isn't a true star yet since it doesn't perform nuclear fusion Making the star very weak at this point. 439122 https://padlet.com/439122/pztrmfaxq98v/wish/320604956 2019-01-15 03:11:16 UTC https://padlet.com/439122/pztrmfaxq98v/wish/320604956 But as everytime the protostar prevents a collapse form happening around them it gets bigger because its collecting more materials to help it get bigger 439122 https://padlet.com/439122/pztrmfaxq98v/wish/320606907 2019-01-15 03:24:34 UTC https://padlet.com/439122/pztrmfaxq98v/wish/320606907 This also make the core hotter, This whole stage takes millions of years. 439122 https://padlet.com/439122/pztrmfaxq98v/wish/320607589 2019-01-15 03:29:23 UTC https://padlet.com/439122/pztrmfaxq98v/wish/320607589 Once the core hits to 10,000 degrees kelvin Alpha A will then be able to perform nuclear fusion 439122 https://padlet.com/439122/pztrmfaxq98v/wish/320608940 2019-01-15 03:40:48 UTC https://padlet.com/439122/pztrmfaxq98v/wish/320608940 At this point once Alpha A settles down and does perform Nuclear fusion is when it becomes a true star 439122 https://padlet.com/439122/pztrmfaxq98v/wish/320609392 2019-01-15 03:44:38 UTC https://padlet.com/439122/pztrmfaxq98v/wish/320609392 Now Alpha Centauri A is in the Main sequence stage, just like our sun. Alpha A star to become denser, and gases ignite in the core having the star heat up. For billions of years, Alpha A will get denser and hotter, and pressure on the core will increase. 439122 https://padlet.com/439122/pztrmfaxq98v/wish/320609660 2019-01-15 03:47:06 UTC https://padlet.com/439122/pztrmfaxq98v/wish/320609660 Then as Alpha A tries to remain stable, and the outer layer expands to keep heat from the core in, it will turn into a red giant. 439122 https://padlet.com/439122/pztrmfaxq98v/wish/320610208 2019-01-15 03:51:19 UTC https://padlet.com/439122/pztrmfaxq98v/wish/320610208 This is the beginning of the end. As Alpha A Is releasing that helium burning. This is making Alpha A less stable because the helium is what makes the star be stable. 439122 https://padlet.com/439122/pztrmfaxq98v/wish/320613162 2019-01-15 04:14:58 UTC https://padlet.com/439122/pztrmfaxq98v/wish/320613162 Over time Alpha A will become less and less stable, making it run out of energy, and become a white dwarf 439122 https://padlet.com/439122/pztrmfaxq98v/wish/320614034 2019-01-15 04:22:29 UTC https://padlet.com/439122/pztrmfaxq98v/wish/320614034 No one knows how long until a star stays in this stage, But it is considered dead since it doesn't have a source of energy thus making this the end of Alpha A's life 439122 https://padlet.com/439122/pztrmfaxq98v/wish/320614143 2019-01-15 04:23:58 UTC https://padlet.com/439122/pztrmfaxq98v/wish/320614143 You could compare this, to the life of a flower 439122 https://padlet.com/439122/pztrmfaxq98v/wish/320614891 2019-01-15 04:29:48 UTC https://padlet.com/439122/pztrmfaxq98v/wish/320614891 First, it is a seed, the ability to become a flower but isn't ready yet 439122 https://padlet.com/439122/pztrmfaxq98v/wish/320614962 2019-01-15 04:30:27 UTC https://padlet.com/439122/pztrmfaxq98v/wish/320614962 Then seed grows roots, so it can grow into a flower, but still isn't one. 439122 https://padlet.com/439122/pztrmfaxq98v/wish/320615149 2019-01-15 04:31:28 UTC https://padlet.com/439122/pztrmfaxq98v/wish/320615149 then, once the seed gets enough nutrients, it will sprout a stem, but is still in the early stages of life since it cant reproduce 439122 https://padlet.com/439122/pztrmfaxq98v/wish/320615402 2019-01-15 04:33:30 UTC https://padlet.com/439122/pztrmfaxq98v/wish/320615402 Then, as it grows taller, it is able to form a flower and can reproduce 439122 https://padlet.com/439122/pztrmfaxq98v/wish/320615553 2019-01-15 04:35:25 UTC https://padlet.com/439122/pztrmfaxq98v/wish/320615553 Then over time, the leaves on the flower starts to wilt and die 439122 https://padlet.com/439122/pztrmfaxq98v/wish/320615717 This compares to the life of Alpha Centauri A]]> 2019-01-15 04:36:35 UTC https://padlet.com/439122/pztrmfaxq98v/wish/320615717