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Second Years: Lesson Four; *Archived*
Topic Started: Jan 20 2018, 06:35 PM (125 Views)
Professor Sarah Harrington
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Mother of Two Girls | Astronomy Professor | HS Graduate Ravenclaw

[justify]Professor Harrington was looking forward to seeing her second years again, they were quite a nice bunch of students and already very professional in the classroom when compared to the first years. Letting them in she smiled as they began to take their seats, "Today, is the death of a star. Fascinating but also grim."

"So, how long a star lives depends on its mass. The bigger they are, the quicker they die. This might seem odd, but the more mass a star has, then the hotter it gets. The hotter it gets, the quicker it exhausts its fuel supply," Sarah said to her students taking a moment to pause. "Our nearest star, the Sun, will exhaust its supply of hydrogen fuel in around 4 billion years. Then the Sun's core will collapse under its own gravity. At the same time, its atmosphere will become unstable and start to expand. This will transform the Sun into a huge red giant star, we will look more into star types next lesson."

"This is not good news for the Earth. Closer planets like Mercury will be completely engulfed by the swelling Sun. Earth will be entirely vaporized and all life on our planet will end. But there's no reason for alarm – we have a few billion years to plan our escape!" Sarah said with a laugh, all of these students and herself would be long gone before the Sun started it's years of dieing. "Over the following billion years, the Sun will gradually die. As a star's core crashes inwards, it eventually becomes hot enough to ignite another of its constituent atoms, helium. Helium atoms fuse together to form carbon. When the helium supply runs out, the center collapses again and the atmosphere inflates. The Sun isn't massive enough to fully re-ignite its core for the third time. So it goes on expanding, shedding its atmosphere in a series of bursts." Professor Harrington told the class. "Now our Sun will turn into a white dwarf, most likely, as it is not large enough to turn into a supernova, which I shall describe further. When a star a few times larger than the Sun runs out of fuel, its end is far more spectacular. A massive shock wave radiates throughout the whole star, which heats up to around 1 billion°C. Then it explodes as a supernova. This flash is as bright as a whole galaxy and leaves behind a rapidly spinning neutron star."

"That is it for tonight guys, remember to stay safe and do the homework, and not to mention make sure you have enough notes." Sarah concluded the class and departed from the classroom after the students all left. She thought it was a lot of information but she was sure her students could handle it all.

Homework:
-Roleplay the lesson and take some notes.
-Write a small essay about Supernova.
[/justify]Astronomy,2,4
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Professor of Astronomy
Years 1-7


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Gabriella Tillington
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Not a Twin | Perfectionist | Well-Organized | Swimmer | Controlled | Socially Awkward

Gabriella's second year was a lot like her first so far. She hadn't made many new connections, though she was working on it. Her conversation with Ella had been good, and she no longer felt as awkward being in the same room as Frankie. Her studies were going well too, something she had written her father about in her last letter. She always felt awkward mentioning her sister, even though he knew she was here at school too.

She gave Frankie a small smile as she took her seat, then focused her attention on Professor Harrington. She said they were going to talk about the death of a star today, something she was interested in. She started taking notes, writing down that stars died quicker depending on how big they were. It made sense to her that a star of more mass would get hotter. She had already known their own sun would die, though thankfully not for a long time.She tried her best to follow the talk about helium atoms and carbon, though it was a little hard to understand. Gabriella didn't like that it was difficult for her, and she quickly noted down everything that she found hard to understand on a piece of paper so she could look them up at the library later. She had to ace this exam, and she would do her best. She got to her feet once the lesson was over and made her way out of the classroom. She'd go to sleep now so she could head to the library before classes tomorrow.
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Aesthetic Biography Relationships
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Lenore Harvelle
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Secretly Part-Goblin l♣l Flora l♣l Fiction Nerd Ω

Astromomy was iffy, sometimes she enjoyed herself a whole bunch. Len walked onto the giant staircase up to the tower. She sat down and waited for the others to arrive. Hopefully it was going to be a fun lesson. The rest of the class arrived and the Professor started her lesson.

The fact that the sun was a star didn't scare Len. The fact that stars could die and then implode was less of a fun fact. Earth would be wiped and that meant everything would die. Even magic couldn't safe you. You could hardly fly on your broom to the next livable planet with a bubble head charm casted on you. The thought made Len smile and she made a tiny drawing out of it. She still listened and made notes.

Len wondered if the sun wasn't big enough to turn supernova what was big enough. The sun seemed ginormous and Len didn't really know what was bigger than that. Maybe planets, but they weren't a star. It confused Len and thus she left the classroom only more confused. Hopefully they learned about Supernova's in the next lesson.
ll Biography ll Aesthetic ll
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A big thank you to Claire for the signature
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Chante Ateara
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madlyn & chayton's ♥ • little giant (5'7) • chatter box • sioux tribe • sda • aspiring cook?? • like a rubik's cube

[justify]Chante happily made her way up to the towers arriving just in time for the lesson to begin. She sat down next to Gabriella while she waved hello to Lens. Chante been all over the place lately. She hadn't spoken to either girl in a while, but she suppose she hadn't made an effort to talk to her friends. She'll have to fix that, but until then her eyes were focused on the professor tonight. She just had some sugary pop before coming here. There no way she would be sleepy eyes anytime soon. Professor lecture was on the death of a star. Again, she brought back to her times with her grandmother. Like any living thing, it all comes to end just like their beginning. Her grandmother had always been open about these things, so in a way, she was prepare to hear the worst of it. No matter how it's explained, Chante took down her notes in case she needed to reflect back on these lessons.

Still, she felt a little sad. No matter how the professor would say it and as amazing it may seem to witness it. Chante wouldn't want to be around when the sun collapse. It would be the end of days, she can only imagine how the world would be different. Would the muggel world be more accepting of their kind? She hope so. And if by chance there was a way to stop the sun from burning out, muggels would need all the help in the world to stop the catastrophic apocalyptic from happening. Or let it happen, as nature intended. Do the same rule on earth apply to space? She ponders. Chante got way more with his lesson, more than she had intended. Chante left the towers once the lesson ended.
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thanks claire ♥
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biography* &. muse* &. aesthetic &. in-action

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