Sun Structure
Fusion occurs here
Core
All stars begin as this cloud of gas and dust
Nebula
HR diagram plots these two star characteristics
Temperature and Luminosity/Absolute Magnitude
Place these in order from small to large:
galaxy, universe, solar system
solar system, galaxy, universe
Our sun is this color
Yellow
Crown of light in sun's atmosphere; only visible during total solar eclipse
Corona
When our small/average size stars run out of Hydrogen, fusion will stop, the star will expand and cool becoming a ____________.
Red giant
90% of stars are in this diagonal band on the HR diagram
Main sequence
Our galaxy's name
Milky Way
Neutron stars
Layer where light energy radiates outward; outside of the core
Radiation layer (Radiative layer)
Small stars end their life as this.
Black dwarf
Large, cool stars at the upper right part of HR diagram
Red Giants & Supergiants
Shape of our galaxy
Spiral galaxy
Two main gases in sun and other stars
Hydrogen & Helium
H+H --> He + energy
Sphere of light; what we see when we look at the sun
Photosphere
The most massive stars end their lives as a huge, collapsed star with gravity so great that light cannot escape
Black hole
Small, hot stars at the lower, left of the HR diagram
White dwarfs
Shape of galaxies that look like a blob
Irregular
The universe is expanding as a result of the Big Bang, so the universe is expanding and light shows the __________ shift
Red shift
Layer at surface where heat rises, cools, and fall in circular currents.
Convection Layer/Convective Layer
Large stars eventually expand to form red supergiant, which grow to become these oldest, brightest stars in the sky.
Supernova
Color of stars from hottest to coolest
Blue, white, Yellow, Red
Shape of galaxies that are the same as the shape of planets' orbits
Elliptical
The distance that light will travel in a year
Lightyear