Astronomy C
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Re: Astronomy C
By that I think he meant middle-earth.
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Astronomy, Remote Sensing (Both Mars and Global Warming), Dynamic Planet (Oceanography/Earthquakes and Volcanoes), It's About Time, Technical Problem Solving, and I really don't want to count, but did fail at-Fermi Questions.
Astronomy, Remote Sensing (Both Mars and Global Warming), Dynamic Planet (Oceanography/Earthquakes and Volcanoes), It's About Time, Technical Problem Solving, and I really don't want to count, but did fail at-Fermi Questions.
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Re: Astronomy C
I think that red dwarves, after proficently burning hydrogen for billions of years, slowly collapse into black dwarfs.
Sun-like stars become red giants, and fluctuate greatly in temperature and brightness. Then they collapse into white dwarves.
Large stars become red supergiants, which vary even more than red giants. Then they explode as supernovae. If the core of the star is about 1.4 to 3.2 times the mass of the sun, it becomes a neutron star. If the core is more than 3.2 solar masses, it collapses into a black hole.
Have I got this right?
Sun-like stars become red giants, and fluctuate greatly in temperature and brightness. Then they collapse into white dwarves.
Large stars become red supergiants, which vary even more than red giants. Then they explode as supernovae. If the core of the star is about 1.4 to 3.2 times the mass of the sun, it becomes a neutron star. If the core is more than 3.2 solar masses, it collapses into a black hole.
Have I got this right?
100% of deaths are somehow caused by science.
Don't be a statistic.
Don't do science.
Naperville Central High School '17 Michigan State University Physics '21
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Don't be a statistic.
Don't do science.
Naperville Central High School '17 Michigan State University Physics '21
GO GREEN GO WHITE
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Re: Astronomy C
Nothing there seems out of place off the top of my head.Cheesy Pie wrote:I think that red dwarves, after proficently burning hydrogen for billions of years, slowly collapse into black dwarfs.
Sun-like stars become red giants, and fluctuate greatly in temperature and brightness. Then they collapse into white dwarves.
Large stars become red supergiants, which vary even more than red giants. Then they explode as supernovae. If the core of the star is about 1.4 to 3.2 times the mass of the sun, it becomes a neutron star. If the core is more than 3.2 solar masses, it collapses into a black hole.
Have I got this right?
Also, be sure to know what's being burned (and where) in a star during those various stages of its life.
(State, Nationals)
2013: Astro (2, 6) / Chem (2, 5) / Circuits (8, 36) / Diseases (1,1) / Fermi (N/A, 24) / Materials (1, N/A)
2012 : Astro (1, 11) / Chem (N/A, 13) / Diseases (3, 1) / Optics (2, 3) / Sounds (2, 1)
2011: Astro(2,11) / Diseases (1,27) / Optics (1,13) / Proteins (2,15)
2013: Astro (2, 6) / Chem (2, 5) / Circuits (8, 36) / Diseases (1,1) / Fermi (N/A, 24) / Materials (1, N/A)
2012 : Astro (1, 11) / Chem (N/A, 13) / Diseases (3, 1) / Optics (2, 3) / Sounds (2, 1)
2011: Astro(2,11) / Diseases (1,27) / Optics (1,13) / Proteins (2,15)
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Re: Astronomy C
Ok. And I have this huge space book that has info on every planets and some satellites. It has info on stars, nebulas, supernova remnants, galaxies, and other cosmology. The only downfall is that it is really bulky. I forgot the title.
100% of deaths are somehow caused by science.
Don't be a statistic.
Don't do science.
Naperville Central High School '17 Michigan State University Physics '21
GO GREEN GO WHITE
Don't be a statistic.
Don't do science.
Naperville Central High School '17 Michigan State University Physics '21
GO GREEN GO WHITE
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Re: Astronomy C
We briefly went over the life cycle of a star in science a few weeks ago. Unfortunately, we did not touch on the concept of brown dwarves.
"I know that the molecules in my body are traceable to phenomena in the cosmos. That makes me want to grab people on the street and say: ‘Have you HEARD THIS?"
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Re: Astronomy C
Stellar evolution does sound fun (I blame the name), but I think the topic is supposed to remain galaxies. And I agree with EAST that there's more you can do with galaxies.EASTstroudsburg13 wrote:Stellar evolution would be cool, but in my opinion there's not as much you can do with stellar evolution rather than galaxies.JCicc wrote:I think the astronomy topic rotates back to stellar evolution next year.
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Re: Astronomy C
Neither did we. But we did an astronomy newsletter, and I wrote something about brown dwarves.QuantumLeaper wrote:We briefly went over the life cycle of a star in science a few weeks ago. Unfortunately, we did not touch on the concept of brown dwarves.
It is debated what a brown dwarf is. Sometimes it is considered a small star, a failed star, or something else. What do you guys think?
100% of deaths are somehow caused by science.
Don't be a statistic.
Don't do science.
Naperville Central High School '17 Michigan State University Physics '21
GO GREEN GO WHITE
Don't be a statistic.
Don't do science.
Naperville Central High School '17 Michigan State University Physics '21
GO GREEN GO WHITE
- JCicc
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Re: Astronomy C
Chaisson and McMillan (5th ed) say that brown dwarfs are "failed stars." Apparently, masses between 12 and 80 Jupiter masses are brown dwarfs; below 12 and there's no fusion at all. More than 80 Jupiter masses and hydrogen fusion takes place. In between these masses, a period of deuterium fusion takes place. You are right, however, about the debate, and I'm not sure that these limits are generally accepted.
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Re: Astronomy C
One: I thought it was 15 to 75 times Jupiter's mass.
Two: I once read that they were actual stars.
Two: I once read that they were actual stars.
100% of deaths are somehow caused by science.
Don't be a statistic.
Don't do science.
Naperville Central High School '17 Michigan State University Physics '21
GO GREEN GO WHITE
Don't be a statistic.
Don't do science.
Naperville Central High School '17 Michigan State University Physics '21
GO GREEN GO WHITE
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