Chapter 31.1 Flashcards
a gigantic explosion in which the temperature within the collapsing star is 10 billion K and the atomic nuclei in the core split into neutrons and protons
supernova
the ball of neutrons left behind after the explosion of a star
neutron star
a group of stars given a name from ancient culture
constellation
collects and amplifies radio waves
radio telescope
the distance light travels in one year
light year
uses a prism or diffraction grating separate light into its component wavelength
spectrosphere
the evolution of a star caused by the core contracting and the temperature increasing
giant star
forms as the core of a giant star no longer supports fusion and the star’s outer layer escaping into space
white dwarf
an area so dense that nothing can escape the pull of gravity
black hole
the layer of the sun that emits light into space
photosphere
dark cool areas in the photosphere where the sun’s magnetic field had weakend
sunspots
a large cloud of dust, ice, and gas
nebula
star classification on the H-R diagram
main sequence
What are the three ways that constellations can get their names?
characters in stories, animals, & tools
What is the constellations get their names?
Orion’s Belt
What are the names of Orion’s dogs?
Canis Major and Canis Minor
What does Canis Major mean?
Big dog
What does Canis Minor mean?
Little dog
How many basic optical telescopes are there?
2
What does a refracting telescope use?
Convex lenses
What does reflecting telescope use?
Concave mirror
What are the two types of the optical telescopes?
Reflecting and Refracting
Why are space telescopes more effective than ground-based telescopes?
Images are not distorted by clouds and pollution
What are the names of the two space telescopes?
Chandra X-Ray Observatory and Spitzer Space Telescope
How fast does light travel in space?
300,000 km/s
What can a spectroscope determine about a star?
Composition, surface temperature, and whether or not its moving away or towards Earth
Which wavelengths are red?
The ones closer to the earth (close and frequent)
Which wavelengths are blue?
The ones further away form the earth (further and less frequent)
Where do stars form from?
A Nebula
Where does (H-R) stand for?
Hertzsprung-Russell
What is the Sun know as?
A giant star
What are the interior layers of the Sun?
The core, the radiation zone, and the convention zone
Are sunspots cooler than surrounding areas?
Yes
Are sunspots permanent?
No
What is the atmosphere of the Sun composed of?
The Chromosome and the Corona
