Miscellaneous 1
Unit of measure equal to 93 million miles
What is AU
Main sequence stars fuse this element in core
What is hydrogen
Age of the earth
4.6 billion years
Sun's direct rays strike here on first day of Summer in Northern Hemisphere
Tropic of Cancer
When a star fuses helium in core its atmosphere expands and cools and it becomes this
What is a red giant
what is spaghettification
stretchering due to tidal effects of black hole
What do the variables in the formula e=mc^2 stand for? Include unit of measures
e-energy in joules
m-mass in
c-speed of light in m/s
A star with a mass of over 10 solar masses will end up as this- an object with such great gravity that not even light can escape.
What is a black hole
Who may have been murdered by Johannes Kepler?
What is Tycho Brahe
conditions needed for a type 1a supernova?
white dwarf and close companion star.
boundary of no return for a black hole
What is event horizon
Age of the universe according to the Big Bang Theory
13.7 billion years
Scientific name for the changing of wavelengths due to movement of the wave emitter in relation to the observer of the wave.
What is Doppler effect.
How do the terms stellar onion or stellar gobstopper relate to the final moments before a type 2 supernova?
layers of elements from hydrogen on the outside to iron in the core.
Explain why we are made of "stardust"
stars make elements through fusion.