Test 2 Extra Flashcards
What are three parts of the Sun’s atmosphere?
- Photosphere
- Chromosphere
- Corona
The dark patches observed in the Sun’s photosphere are called:
Sun spots.
A binary star system in which one star passes in front of its companion and blocks its light out is called:
An eclipsing binary.
A light curve plots what two quantities:
Time and apparent magnitude.
The gas and dust between the stars is called:
The interstellar medium.
The beautiful multicolored clouds floating in spaces that turn into stars are called:
Nebula.
When a gas is so dense that the electrons are not free to change their energy the gas is called:
Degenerate.
The onset of iron fusion causes a star to become a:
Supernova.
After a star goes supernova it can become:
Either a neutron star or a black hole.
A neutron star does not collapse due to gravity because of:
Neutron degeneracy pressure.
Which of the following best describes the size of a neutron star?
The size of a city.
One of the best ways to detect black holes is:
Observe the emission of X-rays as material fall onto the black hole’s event horizon.
