Where a star is "born"
What is a stellar nursery or nebula?
The brightness of a star, as perceived from earth
What is luminosity?
On an HR diagram, this star has a luminosity of 1
What is the sun?
the direction, relative to the observer, that an object is moving if its waves are compressed
What is towards the observer?
This season immediately follows spring
What is summer?
In order to enter main sequence, a star must do this
What is nuclear fusion?
The actual brightness of a star
What is absolute magnitude?
This color of stars is the hottest
What is Blue?
the direction, relative to the observer, that an object is moving if its waves are inflated
What is away from the observer?
This college sports tournament is associated with spring
What is march madness?
This is the attribute of a star that will trigger its fusion
What is mass?
An exceptionally large gravitational object that traps even light
What is a black hole?
This color of stars is spectral type M
What is orange/red?
If an object is stationary relative to the observer, this is what you would expect
What is no shift?
This is the cause of the warming that occurs in the northern hemisphere during spring
What is the tilt of the earth towards the sun?
This element, when fused in the core of a star will signal the end of its "life"
What is iron?
The glowing white core of an average sized star at the end of its cycle
What is a white dwarf?
Near the end of its cycle, our sun will become this spectral type
What is M?
what is the doppler effect?
This is the part of the world that the sun rises over on the first day of spring
What is the equator?
The stage of its cycle that our sun is in
What is main sequence?
The names of the scientists who created the HR Diagram
Who are Hertzprung and Russell?
There is a positive relationship between these two attributes of stars
What is size and brightness?
What is redshift?
This is a latin root word meaning "Spring"
What is vernal?