Transcript Ginger Dublin 6th Grade Science

Ginger Dublin
6th Grade Science
Star Facts
Types of Stars and How They
Form
• Low Mass Stars
• Medium Mass Stars
• High Mass Stars
Low Mass Stars
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Nebula
Protostar
Main Sequence Star
White Dwarf
• Small, cool stars
• Use hydrogen slowly
• Live more than 30
billion of year
Medium Mass Stars
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Nebula
Protostar
Main Sequence Star
Red Giant
Planetary Nebula
White Dwarf
• Medium size and
temperature
• Live about 10 billion
years
High Mass Stars
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Nebula
Photostar
Main Sequence Star
Supergiant
Supernova
Neutron Star or Black
Hole
• Hottest, most massive
stars
• Shortest lives:
millions of years
• Uses hydrogen quickly
Black Holes
• Formed when a
supernova explodes
causing its core to
collapse.
• So dense that even
light can’t escape its
gravity.
Stars
Colors and Temperatures
Blue
Hottest
Yellow
Medium temperature
Sun
Red
Coolest
Starlight Brightness
• Apparent Magnitude: How bright a star
appears to be from earth when viewed with
the unaided eye. Distance can cause a
dimmer star to appear to be brighter than a
brighter star that is farther away.
• Absolute Magnitude: The amount of light
(brightness) a star actually has. This is an
actual measurement.
Electromagnetic Radiation
• Energy that travels
through space in
waves
• Stars give off
electromagnetic
radiation in different
forms
• Each form has its own
wavelength
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Radio Waves
Infrared Rays
Visible Light
Ultraviolet Light
X-Rays
Gamma Rays