31.1 and 31.2 Flashcards
(29 cards)
a group of stars that were named after people.
constellations
collects and amplifies radio waves
radio telescope
the distance light travels in a year.
light year
uses a prism or diffraction grating to seperate light.
spectroscope
an area in space that is very dense
black hole
the layer of the sun that emits light into spave
photo sphere
dark cool areas in the photo sphere
sunspots
a star that suddenly increases greatly in brightness
supernova
a subatomic particle of about the same mass as a proton
neutron star
how do constellations get their shapes
stories, animals, and tools
what constellations represents the great hunter.
O’rions belt
What are O’Rions hunting dogs?
Canis Minor, and Canis Major
What does Canis Minor and Canis Major mean.
Little dog and Big dog.
How many optical telescopes are there?
two
What does a refraction telescope use?
Convex lens.
What does a reflecting telescopes use?
A mirror and a concave lens.
What are the two names of out telescopes?
Reflecting or refracting.
Why are space telescopes better than ground based telescopes?
No clouds or disturbance and is closer to what they are looking at.
What are the two names of the telescopes we talked about?
Chandra x-ray observatory and the spitzer space telescope.
What are the three things that a spectroscope can determine.
it can determine its chemical composition how close it is to earth.
stars that are closer to earth are what color and have what wave lengths?
Yellow and the waves are more compact
If a star is further from earth what color is it, and what are the wave lengths?
Red and less compact.
Where do stars form from?
Nebula
Where did the name H-R diagram come from?
It came from the names Hertzsprung and Russell.
