Embed Size (px)
DESCRIPTION
Citation preview
1.2e The Sun and Stars
Enhancement Lesson
16.2 Vocabulary
Red Giant – a large, reddish star late in its life cycle that fuses helium into carbon or oxygen.
16.2 Vocabulary
Supergiant – an extremely large star that creates elements as heavy as iron.
16.2 Vocabulary
Supernova – a powerful explosion that occurs when a massive star dies.
16.2 Vocabulary
White Dwarf – A small, very dense star that remains after fusion in a red giant stops.
16.2 Vocabulary
Neutron Star – a dead star with the density of atomic nuclei.
16.2 Vocabulary
Black Hole – an object so massive and dense that not even light can escape its gravity.
16.2 What is a star
Coronal streamer-A wisp-like stream of particles that gradually moves away from the Sun and becomes part of the solar wind.
16.2 What is a star
Coronal holes - are areas of the Sun's surface that are the source of open magnetic field lines that head way out into space.
16.2 What is a star
Photosphere - imaginary surface from which the solar light that we see appears to be emitted.
16.2 What is a star
Sunspot – temporary phenomena on the photosphere caused by magnetic activity which inhibits convection forming areas of reduced temperature.
16.2 What is a star
Chromosphere – An incandescent, transparent layer of gas, primarily hydrogen, several thousand miles in depth, lying above and surrounding the photosphere of a star, such as the sun, but distinctly separate from the corona.
16.2 What is a star
Filament – are formed in magnetic loops that hold relatively cool, dense gas suspended above the surface of the Sun.
16.2 What is a star
Corona hole – areas where the Sun's corona is darker, colder, and has lower-density plasma than average.
16.2 What is a star
Convective Zone – the range of radii in which energy is transported primarily by convection.
16.2 What is a star
Radiative Zone – In the radiation zone, energy is transported by radiation.
16.2 What is a star
Core – The core is the source of all the Sun's energy. The Sun's core has a very high temperature, more than 15 million degrees Kelvin, and the material in the core is very tightly packed or dense
Birth and Death of a Star
Protostar Fusion Ignition
Main Sequence
White Dwarf Black HoleRed &
Supergiants
1
