Spectral types
What Spectral type is the hottest and what color is it?
What is Spectral type O and Blue
What are nebulae?
What is clumps of gas and dust
What does HR stand for in HR-Diagram?
What is Hertzsprung-Russel
What is the first stage of star formation?
What is nebula
Describe the relationship between the size of a dwarf star and the size of the sun.
What is less or equal to the sun's radius
Which Spectral type is hotter A or G?
What is Spectral type A
What are the 3 types of nebula?
What is emission, reflection, and dark
The location of the dimmest stars on the HR diagram
What is the bottom
What percent of stars does the main sequence hold?
What is 90 percent
The larger and hotter a star is, the more ____ it is.
What is luminous
What Spectral type is our Sun in?
What is Spectral type G
Which type of nebula are usually made of short wavelengths?
What is reflection nebula
What type of star is on the right side of the HR diagram that is too bright for their temperature?
What is a Giant
What are the 7 main types of star formation?
What is giant gas cloud, protostar, T-Tauri phase, main sequence, red giant, fusion of heavy elements, supernovae and planetary nebulae
When a star moves closer to us, what color of the spectrum do they move towards?
What is violet
Name the Spectral types in order.
What is O B A F G K M
Reflection nebulae glow due to __?
What is reflecting nearby stars
Stars at the bottom of the HR diagram that are way too dim for their temperature.
What is a White Dwarf
What happens in the red giant phase?
What is the shell of plasma surrounding the core becomes hot enough to begin fusing hydrogen itself
What is the law that concerns the relationship between color and temperature of a star?
What is wien's law
What Spectral type has a temperature range of 7,-500k - 10,000k?
What is Spectral type A
The grains of reflection nebulae contain?
What is Silicates, aluminum oxide, and calcium.
Stars that are not represented on the HR diagram because they do not emit visible light
What is a Neutron star
What are the 3 possible final stages of a star?
What is white dwarf, neutron star, or blackhole
Emission lines are always unique, they are described/remembered as a chemical what?
What is a fingerprint