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Definition
| A small convective cell on the surface of the sun with temperatures a few hundred degrees hotter than the surrounding regions, and lasting a few minutes |
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Definition
| surface of the sun, the imaginary surface from which solar light appears to be emitted |
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| Composition of the univers |
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Definition
| 93% hydrogen, 6% helium, .064% oxy, .039% carbon |
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Definition
| dark patch on suns surface |
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Definition
| sun rotates fully in 25 days |
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Definition
| 22 years, 11 for polarity(solar max and min every 11 uears) |
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Definition
| large tunnels of very hot plasma, moving extremely rapidly, only last a few minutes |
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Definition
| associates with solar flares but connections are not well undersood, sometimes turn off power on earth |
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Definition
| stream of charged particles ejected from the upper atmosphere of the sun, influences magnetic field of earth |
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Term
| accretion of a protoplanetary disk(3 steps) |
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Definition
| 1)flat, rapidly rotating disk forms, 2)sun turns on by fusing h to he, 3) disk of gas and dust forms grains that collide and clump together into planetesimals |
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