The Sun
The surface layer of the Sun we can see
Photosphere
This model places the Sun at the center of the Solar System.
Heliocentric model
The stage the Sun is currently in
Main sequence main star
A collection of billions of stars held together by gravity.
Galaxy
Scientists use this tool to observe objects in space
Telescope
what process occurs in the Core of the sun that leads to the release of energy
Nuclear fusion
The force that keeps planets orbiting the Sun
gravity
A stars true brightness
Luminosity/absolute brightness
The TYPE of galaxy that contains Earth
Spiral galaxy
Scientists use this tool to analyze the light from stars.
spectroscope
Describe what occurs to the gas and plasma in the convective zone
Hot gas/plasma rises & cooler gas/plasma sinks
This structure in the solar system divides inner planets and outer planets
Asteroid belt
A very large, bright star near the end of its life
Red Giant star
The 1st stage of creating a star, A cloud of gas and dust where stars can form is called...?
Nebula
The only part of the electromagnetic spectrum visible to human eyes
visible light or light waves
What solar weather phenomenon causes the aurora
Solar wind
The unit used to measure distances between other Solar Systems
Light year
A small, hot star left after a star uses up its fuel
White dwarf
Put these in order from smallest to largest: Planet, Galaxy, Universe, Star, Solar System. Smallest to largest
Planet → Star → Solar System → Galaxy → Universe
The EM wave with the highest frequency and energy
gamma rays
What is the corona
The Sun's outermost atmospheric layer.
Pluto was reclassified because it cannot do this
What is clear its orbital path of other objects
On an H-R Diagram, stars are organized by temperature and _______ ?
Brightness
List all types of Galaxies
Elliptical, Irregular, Dwarf, spiral
The correct order after visible light is this type of wave
UV