Topic 10 Flashcards
(12 cards)
Name the layers of the sun
Core, radiative zone, convective zone, photosphere, chromosphere, corona
what is the rough temperature of the sun
15,000,000 degrees kelvin
what temp are the radiative/convective zones
2,000,000 kelvin to 6000 kelvin
what temp is the photosphere
5,800 kelvin
what is the temperature of the corona
up to 2,000,000 kelvin
what is the temp of the umbra and penumbra of a sunspot
umbra- 4000 kelvin, penumbra- 5600 kelvin
What are van allen belts caused by
earth’s iron core+ earth’s rotation
What affect does H alpha filter have on most solar radition
-The filter absorbs
-all but a narrow wavelength band of light (from the sun)
Explain why a H alpha filter makes it possible to observe sun safely
The intensitt of solar radiation passing through the telescope is reduced
so less risk of damage to the retina
What is the temp of a sunspot’s penumbra and umbra
umbra-3800 K
penumbra- 5600 K
What quantities and plotted on a butterfly diagram
sunspot latitude and time
what is the length of the solar cycle
11 years