31.1 and 31.2 Flashcards
(35 cards)
groups of stars by ancient cultures
constellations
collects and amplifies radio waves
radio telescope
the distance light travels in one year
light-year
uses a prism or diffraction grating to separate light into its component wavelengths
spectroscope
stars form from a large cloud of gas, ice and dust
nebula
broad band of stars from the hot
main sequence
equilibrium ends, the star’s core contracts, the temperature increases, and the star evolves
giant star
the core of a giant star no longer supports fusion and the star’s outer layer escape into space, leaving a hot and dense core
white dwarf
area in space that is so dense that nothing can escape its pulls of gravity
black hole
gigantic explosion in which the temperature within the collapsing star is 10 billion K and the atomic nuclei in the core splits into neutrons and protons
Supernova
the star explodes, it leaves behind a ball of neutrons
neutron star
the layer of the sun that emits light into space
photosphere
dark, cool areas in the photosphere where the sun’s magnetic field has weakened.
sunspots
How do constellations get their names?
characters from stories, animals, tools
What constellation represents the great Hunter?
O’Ryan
What are the 2 hunting dogs constellation?
Canis Major, Canis Minor
What does Canis Major mean?
Big dog
What does Canis Minor mean?
Little dog
How many optical telescopes are there?
2
What does a refracting telescope use?
Convex lense
What does a reflecting telescope use?
a mirror
What are the two names of the optical telescope?
reflecting and refracting
Why are space telescopes better than ground based telescopes?
It doesn’t have many disruptions.
What are the 2 names of the telescopes?
Chandra X-ray, Spitzer Space Telescope
