Question #1: Solar energy is created deep within
the of the Sun. It is here that the temperature 27,000,000°
F and pressure. It is so intense that nuclear reactions take place.A).
Photosphere Question #2: The Sun's outer visible layer is called the
and has a temperature of 6,000°C (11,000°F). This layer has a
mottled appearance due to the turbulent eruptions of energy at the surface.A).
core Question #3: Stars are given a designation consisting of a letter and
a number according to the nature of their spectral lines which corresponds
roughly to surface temperature. The classes are: O, B, A, F, G, K, and
M; O stars are the hottest; M the coolest. The numbers are simply subdivisions
of the major classes. The classes are oddly sequenced because they were
assigned long ago before we understood their relationship to temperature.
O and B stars are rare but very bright; M stars are numerous but dim. The
Sun is designated as a star.A).
M1 Question #4: The Sun is personified in many mythologies: the Greeks
called it Helios and the Romans called it .A).
Osiris Question #5: The Sun is about billion years old.
Since its birth it has used up about half of the hydrogen in its core.
It will continue to radiate "peacefully" for another 5 billion years or
so (although its luminosity will approximately double in that time).A).
450 Question #6: This part of the sun includes the core and makes up 85%
of the sun's radius.A).
Corona Question #7: This part of the sun --called the surface'' of sun, is
dense enough gas that we can't see through it and it gives off continuous
radiation. About 5800 Degrees Kelvin.A).
Corona Question #8: This part of the sun can only be studied closely during
eclipses. Very high temperature: 1-2 million degrees Kelvin! But very low
density so it has a low amount of heat. Pearly white color seen in eclipses.A).
Corona Question #9: The fusion process produces the light and heat that come
from the sun. How many billions of tons of Hydrogen does the sun consume
every second ?A).
300 Question #10: Which part of the sun is the thing you see when you look
at the sun.A).