Sun Flashcards
What is the diameter of the Sun?
1 400 000km
What is the photosphere temperature of the Sun?
5 800 kelvin
What is the corona temperature of the Sun?
2 000 000 kelvin
What is the core temperature of the Sun?
15 000 000 kelvin
What is the mass of the Sun?
1.989x10^30kg
What is the pole rotational period of the Sun?
36 days
What is the structure of the Sun from outside to inside?
Corona-> Chromosphere-> Photosphere -> Convection zone -> Radioactive zone -> Core
What does H-alpha allow us to see when viewing the sun?
The Photoshpere.
What does X-ray allow us to see when viewing the sun?
The cooler and hotter parts.
why is visible light good for viewing the sun?
Because we can see it easily and new technology allows us to see finer details.
What is solar wind?
Stream of energised charged particles flowing outward from the Sun.
What is the Aurorae?
Light given off as particles from the solar wind intereact with the atmosphere after spiralling in near the poles (northern lights)
What is Thermo-nuclear fusion?
When two atomic nuclei join (fuse) and energy is released as gamma rays, these come out of the sun millions of years later in the form of visible light.
What is the equatorial rotational period of the Sun?
25 days
What does the butterfly diagram show?
That the latitude of sunspots differs over the solar cycle. At the end they appear closer to the equator at the end of the cycle, the reason for this is unknown.
