PROPERTIES OF STARS There are many different types of stars in the Universe… our star… The SUN; is a very average star What Do we Know about Stars? Star Temperature and Color Star Mass from Binary Stars Star Brightness Temperatures A stars temperature is determined by its color Cool____ _ Medium____ _ Hot _____ Many stars orbit each other= BINARY STARS We can find the mass of these stars by the size their orbits, also the small star blocks light from the big star, that tells us their size as well. Binary Stars Apparent Magnitude Absolute Magnitude What the star looks like from Earth… based on distance from earth The actual brightness of the star from 32.6 light years away…. Star Distance
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PROPERTIE S OF STARS There are many different types of stars in the Universe our star The SUN; is a very average staraverage star What Do we Know about.
What is the temperature of the sun a. Hot b. Cool c. Medium GEOSCIENCE WARMUPS Agenda: 1.WarmUp 2.COTD 3.Complete 2 box on star poster 4.Star Movie Agenda: 1.WarmUp 2.COTD 3.Complete 2 box on star poster 4.Star Movie Goal: I will be able to describe how we tell the distance of a star from earth and its mass
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PROPERTIES OF STARS
There are many different types of stars in the Universe… our star… The SUN; is a very average star
What Do we Know about Stars?
Star Temperature and Color Star Mass from Binary Stars
Star Brightness
Temperatures
A stars temperature is determined by its color
Cool_____Medium_____
Hot _____
Many stars orbit each other= BINARY STARS
We can find the mass of these stars by the size their orbits, also the small star blocks light from the big star, that tells
us their size as well.
Binary Stars
Apparent Magnitude
Absolute Magnitude
What the star looks like from Earth… based on distance from earth
The actual brightness of the star from 32.6 light years away….
Star Distance
Blue=hottestRed=coolestYellow= medium
GEOSCIENCE WARMUPS4-26-12
Agenda: 1.WarmUp
2.COTD3.Start on Star Poster
4.Star Movie
Goal: I will be able to list the different
colors of stars and their temps
What is the temperature of the suna.Hotb.Coolc.Medium
GEOSCIENCE WARMUPS4-26-12
Agenda: 1.WarmUp
2.COTD3.Complete 2 box on
star poster4.Star Movie
Goal: I will be able to describe how we tell the distance of a star
from earth and its mass
Scientists use __________ to find the mass of starsa.Binary starsb.Parallaxc.color
GEOSCIENCE WARMUPS 5-2-12
Agenda: 1.WarmUp
2.COTD3.Complete 1 box on
star poster4.Star Movie
Goal: I will be able to describe how we tell the distance of a star
from earth and its mass
Scientists use __________ to the distance of a star from Eartha.Binary starsb.Parallaxc.color
GEOSCIENCE WARMUPS5-2-12
Agenda: 1.WarmUp
2.COTD3.Complete 1 box on
star poster4.Star Movie
Goal: I will be able to describe how we tell the distance of a star
from earth and its mass
This is the real brightness of a star from 32.6 light years away…. not from eartha.Real magnitudeb.Apparent magnitudec.Absolute magnitude
GEOSCIENCE WARMUPS5-3-12
Agenda: 1.WarmUp
2.COTD3.HR Diagram Poster
4.Star Movie5.Quia Review
Goal: I will be able to describe how we tell the distance of a star
from earth and its mass
HR DIAGRAM POSTER 1. Turn to page 704 2. Draw the diagram in figure 5, with color 3. Label the x and y axis 4. Draw and fill in the following table
Star Type Absolute magnitude(Brightness)Bright, Med, dim
Temperature in degrees, then cool, medium, hot
Color of star
Super GiantWhite GiantMain SequenceWhite DwarfBlue Giant
HR DIAGRAM POSTER 1. Turn to page 704 2. Draw the diagram in figure 5, with color 3. Label the x and y axis 4. Draw and fill in the following table
Star Type Absolute magnitude(Brightness)Bright, Med, dim
Temperature in degrees, then cool, medium, hot
Color of star
Red super giant bright Cool, 3000 redGiant Med bright Cool, 3000 red
Main Sequence(Sun)
med Med, 7000 yellow
White Dwarf dim 7000 whiteBlue Giant Bright 40000 blue
HR DIAGRAM POSTER 1. Turn to page 704 2. Draw the diagram in figure 5, with color 3. Label the x and y axis 4. Draw and fill in the following table
Star Type Absolute magnitude(Brightness)Bright, Med, dim
Temperature in degrees, then cool, medium, hot
Color of star
Super GiantWhite GiantMain SequenceWhite DwarfBlue Giant
HR DIAGRAM POSTER 1. Turn to page 704 2. Draw the diagram in figure 5, with color 3. Label the x and y axis 4. Draw and fill in the following table
Star Type Absolute magnitude(Brightness)Bright, Med, dim
Temperature in degrees, then cool, medium, hot
Color of star
Super GiantWhite GiantMain SequenceWhite DwarfBlue Giant