Section 1 Ch31 Flashcards
Constellation
Many of the names given to these groups of stars by ancient cultures remain today and are called constellations.
Radio telescope
Collects and amplifies radio waves
Light-year
Light-year is the distance light travels in one year.
Spectroscope
A spectroscope uses a prism or diffraction grating to separate light into its component wavelengths.
Nebula
Stars form form a large cloud of gas,ice and dust called a nebula.
Main sequence
Stars include the broad band of stars from the hot, bright stars in the upper left corner of the diagram to the cool dim stars in the lower right corner.
Giant star
As equilibrium ends, the stars’s core contract, the temperature increases, and the star evolves into a giant star.
White dwarf
forms as the core of a giant star no longer supports fusion and the star’s outer layers escape into space, leaving a hot and dense core.
Supernova
as iron
black hole
is an area in space that is so dense that nothing can escape its pull of gravity.
Photosphere
is a layer of the sun that emits light into space
sunspot
Sunspot are dark, cool areas in the photosphere where the Sun’s magnetic field has weakened.
Constellations
animals ,tools
what is the great hunter?
Orion’s belt
The are the names of Orion’s hunting dog?
Canis major and canis minor
