H-R Diagram
What color of Star is within a luminosity of 102 and a temperature of 20,000 degrees Kelvin.
Blue
A cloud of gas and dust that forms stars
nebula
The measurement from crest to crest (from the top of a wave to the top of the next wave).
Wavelength
The sequence a medium size star go through in their life. (list the life cycle) starting with Nebula/protostar....
protostar (stellar nebula), main sequence (average/medium star), red giant, planetary nebula and white dwarf?
What size is the sun?
medium/average
What group lies within a luminosity of 103 and a temperature of 4000 Kelvins?
Red Giants
How are galaxies classified?
shape
The number of crests that pass a given point in one second.
Frequency
The next phase in the Sun's star cycle.
red giant
What color classification is the sun?
Yellow
The color of the coolest stars _______
The color of the hottest stars _______
red
blue
Why does the Sun seem bigger to us than any other star, even though it is actually only a medium-sized star?
It is the closest star to Earth
The only part of the electromagnetic spectrum that we can see.
Visible Light
What life cycle stage is a massive star in once the core collapses and becomes very dense.
Neutron Star
Our sun is part of the Milky way that is in the arm of what type of galaxy?
Bar- Spiral Galaxy
Another variable that could be on the Y-axis of the HR diagram other then luminosity.
What is absolute magnitude?
The process that Hydrogen atoms form Helium is know as what?
Nuclear Fusion
List wavelengths in order from highest energy to lowest energy.
Gamma, X-Ray, Ultraviolet, Visible Light, Infrared, Microwave, Radio wave
What happens after a star explodes as a supernova and the core pulls everything in and completely vanishes.
black hole
The measure of astronomical distances that light travels in one year.
Light Year
This is the category that the Earth's Sun is located on the HR diagram.
Main Sequence
What are the three galaxy categories?
What is spiral, elliptical and irregular?
The colors of the visible light spectrum in order from shortest wavelength to longest wavelength
Violet, Indigo, Blue, Green, Yellow, Orange, Red
What stage would an average star stop glowing?
Black Dwarf
The nearest star to Earth other than the Sun; this stars light takes a little over 4 years to reach Earth.
Proxima Centauri
What category is a star with a luminosity of 10-3, and a temperature of 20,000 degrees Kelvin.
White Dwarf
Small/Medium stars "live" longer than massive stars (billions of years) True or False?
True
Name a wave on the Electromagnetic Spectrum.
What is radio, microwave, infrared, visible light, ultraviolet, x-ray or gamma ray
This determines which life cycle a star will have.
Its mass (size)
Light from the Sun to Earth moving at the speed of light travels 93 million miles or 1 AU in how much time?
8 minutes