Definitions
The collection of large and small bodies that orbit the sun
Solar System
The Milky Way (our galaxy) is an example of this type of galaxy
Spiral Galaxy
The color that represents the coolest stars is:
red
What is the very beginning of a star's life cycle?
a dense core forms in the nebula
What is St. Anthony's mascot?
The Saints
Large celestial body that is composed of gas and emits light
Star
Spherical or oval in shape. Does not have spiral arms
Elliptical galaxy
Hydrogen and Helium
What two forces are acting against each other in nuclear fusion?
gravity and the energy produced from nuclear fusion
Austin
Large collection of stars, gas, and dust that is held together by gravity
Galaxy
Because stars are born in nebula and nebula is formed from the components of a dead star (dust and gases)
If I wanted to tell how bright a star actually is, I would look at its
Absolute Magnitude
What are three differences between the life cycle of low-mass and high-mass stars?
1. Hydrogen fusion vs. Larger element fusion
2. Giant vs. Supergiant
3. White Dwarf vs. Black Hole or Neutron Star
What state is Mr. Sheehan from?
Maine
An invisible object with gravity so great that nothing, not even light, can escape it
Black Hole
The three types of nebula are called
Emission, Reflection, and Dark
The more negative the apparent magnitude, the more _________ a star appears from earth
dim
What happens after the giant phase in the life cycle of a low-mass star?
A neutron star contains the energy of how many suns?
100,000
The measure of a star’s brightness as seen from earth
Apparent Magnitude
Nebula that form from the explosion of super giants are called:
Supernova remnants
Order these stars from most bright in appearance to least bright in appearance:
- Betelgeuse +0.45
- Sirius -1.46
- Sun -26.8
2. Sirius
3. Betelgeuse
What causes a star to grow?
Nuclear fusion stops in the core, gravity condenses core, temperature skyrockets, outer shell of hydrogen begins to fuse causing it to grow
What two national parks are in Texas?
Big Bend and Guadalupe Mountains