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Sun Physical Properties
Solar Magnatism
Nuclear fusion
Stellar Classification
Random Questions
100
The inner most layer of the sun
What is the core
100
The dark spots on the surface of the Sun
What are Sunspots
100
The most abundent particle in the Sun
What is Hydrogen
100
Stars with a radius 10 times or greater than the Sun are considered
Giant stars
100
Stars with a radius less than the Sun are considered
Dwarf stars
200
The outermost zone of the Sun
What is the Corona
200
Sunspots travel in pairs connected by...
Magnetic loops
200
What is the final product in the Proton-Proton chain?
Helium-4
200
The process to measure distance to a star using the shift in location against the background of stars
What is Stellar Parallax
200
The Total energy generated by a star
What is Luminosity
300
Which of these zones has the highest Density. Radiation Zone, Convection Zone, or Chromosphere?
Radiation Zone
300
How long is the sunspot cycle?
About 11 years
300
Why do we not detect as many Neutrino's as scientists believe Exist?
Neutrino's are so small they are very very hard to detect.
300
Barnard star is the second closest star to our Sun. Why did we not know it exists till the 1900's
Its luminosity is so low that we cannot see it from earth with our naked eye.
300
What is the two forces working on the sun to create equilibrium.
Gravity and the outward pressure of fusion
400
The zone where all of our visible light is generated.
What is the Photosphere
400
Might have caused an ice age in the 1600's
Maunder's minimum or a long period of low sunspot activity
400
In the equation E=MC^2 What does E represent M? C?
Energy = Mass X (speed of light) squared
400
How large does a star need to be before its classified as a Supergiant?
1000 times the radii of the Sun
400
How old would a star cluster be if that star cluster had most of its stars in the upper left (blue giant) area of the H-R diagram. How would you know that.
Less than 10 million years old. Most blue giants will burn out in about 10 million years.
500
The zone in which there is a rapid increase in temperature
What is the Transition Zone
500
Why does the magnetic field of the sun get distorted during the sunspot cycle?
The material at the equator moves faster than the material both north and south of it causing the magnetic fields to be dragged.
500
After two protons smash together a Deuteron, a Positron, and a Neutrino are formed. What two particles are left over in the process and make up a Deuteron
Proton and Neutron
500
Give me the order of stellar classification starting from stars with the hottest surfaces to the coolest.
O,B,A,F,G,K,M
500
Explain how its possible for star to have a different Apparent Brightness between two stars that have the same Luminosity. What is the formula used to figure apparent brightness
Different distances from earth Apparent Brightness - Luminosity/distance squared