Sun 101
this holds all the planets and objects in place
What is the sun's gravity?
the surface of the sun is much hotter than a lightning bolt
What is False? A lightning bolt is 5 times hotter than surface
the closest star to Earth
What is the sun?
can travel 186,000 miles per second
What is light?
the name for the sun's atmosphere
What is corona?
the sun was formed about this many years ago
What is 4.5 billion years?
the distance between the sun and earth is constant
What is False? Because of its eliptical orbit, the distant changes
an exploding ball of gas held together by gravity
What is a star?
the star Sirius appears brighter than the smaller star Rigel because of this
What is it is closer to the Earth?
a large, bright feature that extends outward from the Earth's surface
What is prominence?
the sun is made up of mostly these gases
What is hydrogen and helium?
the sun's invisible outer atmosphere is much cooler than its surface
What is False? The atmosphere is 1 million degrees C and the surface is 10, 000 degrees C
the distance light travels in a year
What is light year?
this is used to help determine which constellations are visible in the sky at a certain time of year
What is planisphere?
the name for the sun's surface
what is photospere?
the sun could fit this many Earth's in it
What is 109?
sunspots are cooler than the rest of the solar surface
What is true? Sunspots are around 7,000 degrees C
2 things stars produce
What is light and heat?
this is about halfway through its predicted life
What is the sun?
dark lines or curves on the sun's surface
What is a filament?
the sun can fit all 8 planets inside this many times
What is 600?
the sun's equator rotates faster than its poles
What is true? Because the sun is made of gas and not solid like planets, it flows and the poles rotate slower
one way that ancient people used the stars and constellations
What is to help navigate?
in about 6.5 billion years the sun will expand and collapse into small star called
what is white dwarf?
the reason the aurora borealis or Northern Lights occur at the poles
What is the weakness of the magnetic field there?