Hertzsprung - Russell Diagram

Slides:



Advertisements
Similar presentations
Hertzsprung- Russell Diagram. H-R Diagram Compares the temperature, color and luminosity (brightness) of stars on a graph. The temperature is the surface.
Advertisements

THE LIFE CYCLE OF STARS Chapter 15 – 2 Part 2. A Tool for Studying Stars A Danish astronomer, Ejnar Hertzsprung, and American astronomer, Henry Russel,
Star Properties!!.
A Comparison of the Nearest and Brightest Stars The nearest stars to the Sun are thought to represent the true distribution of stars in the disk of the.
Looking for patterns If we plot a graph of luminosity against temperature for lots of stars we get a graph like this…
HR DIAGRAM AND STAR SIZES!. So, we know how to measure the following properties of stars… 1.Luminosity (from Brightness and Distance) 2.Mass (from Doppler.
Evolution of Stars.
UNIT NINE: Matter and Motion in the Universe  Chapter 26 The Solar System  Chapter 27 Stars  Chapter 28 Exploring the Universe.
TODAY’S VOCABULARY STAR MAGNITUDE: A term used to describe the brightness of a star.
Characteristics of Stars
H-R Diagrams. An H-R Diagram is… A graph of stars’ BRIGHTNESS and TEMPERATURE –It also shows color since color is related to temperature –It was made.
The Life Cycle of Stars “protostar” The Life Cycle of Stars “protostar” “Main Sequence” (longest phase in a star’s cycle.
Characteristics of Stars
Classification of Stars – HR diagram Objectives: understand the differences between near and bright visible stars learn how to use the HR-diagram to classify.
Unit 2: Lesson 5- Classifying stars SWBAT: Plot and analyze stars according to their temperature and luminosity. WOD: main sequence star- hot luminous.
Sci. 4-2 The life Cycle of Stars Pages A. New stars form from the material of old stars that have gone through their life cycles.
Characteristics of Stars. Stars… Are hot balls of plasma that shine because nuclear fusion is happening at their cores… they create their own light Have.
How Do Astronomers Measure the Brightness of a Star? Stars vary greatly in brightness Stars vary greatly in brightness Early peoples observed bright stars.
HR Diagrams In the early 1900s, two scientists named Hertzsprung and Russell each discovered that there is a relationship between the brightness of stars.
Characteristics of Stars
1 1.Uri looks through a telescope for two stars. He knows that both stars have the same absolute brightness and that the second star is twice as far from.
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.
StellarJeopardy IntroductionLife CycleStarsGalaxiesFormation.
 The H-R Diagram is actually a graph that illustrates the relationship that exists between the average surface temperature of stars and their absolute.
Classifying Stars.
Stars Star field taken with Hubble Space Telescope.
The Hertzsprung-Russell Diagram. What is the HR Diagram? Tool that shows relationships and differences between stars. Relative measure of luminosity &
Stellar Evolution Lab 5.
Stars.
STARS A matter of life and death
Astronomy-Part 3 Notes Characteristics of Stars
Characteristics of Stars
The Hertzsprung-Russell Diagram (a.k.a. H-R Diagram)
Characteristics of Stars
H-R Diagrams.
Star Characteristics.
Astronomy-Part 3 Notes Characteristics of Stars
STARS.
Star Classes Los Cumbres Observatory.
H-R Diagrams.
What are the properties of Stars?
H-R Diagrams.
Hertzsprung-Russell Diagram
THE LIFE CYCLE OF STARS Chapter 15 – 2 Part 2.
Hertzsprung-Russell Diagram
Stars and HR Diagrams.
The Hertzsprung-Russell Diagram
Hertzsprung-Russell Diagram or Characteristics of Stars
Unit 9: Space Rescue Practice.
H-R Diagrams.
The Hertzsprung-Russell Diagram
Classifying Stars Stars are classified by 3 Main Characteristics:
The Hertzsprung-Russell Diagram
H-R Diagrams.
The HR diagram The Herztsprung-Russel diagram plots the spectral class O------M of stars against their Absolute Magnitude . This is equivalent to plotting.
Hertzsprung-Russell Diagrams
H-R Diagram.
The Hertzsprung-Russell Diagram (a.k.a. H-R Diagram)
THE LIFE CYCLE OF STARS Chapter 15 – 2 Part 2.
Stars Astronomy Notes Page 5 ©Mark Place,
Stars Astronomy Notes Page 5 ©Mark Place,
“Beyond the solar system where no man
HR Diagram.
Hertzsprung – Russell Diagram
The Hertzsprung-Russell Diagram
Classifying Stars – the Hertzsprung-Russell Diagram
The HR diagram.
Environmental Science
The Hertzsprung-Russell Diagram (a.k.a. H-R Diagram)
H-R Diagrams.
Presentation transcript:

Hertzsprung - Russell Diagram Luminosity vs Temperature

Hertzsprung -Russell Diagram HR diagram Shows the relationship between absolute magnitude and temperature of stars Page 554

In general… As brightness decreases, so does temperature

3 distinct areas of the HR diagram Main Sequence Stars Giants Dwarfs

Main Sequence Stars 90% of stars are main sequence stars Hot = Bright = Big Cool = Dim = Small Sun is average

Some are not main sequence stars Giant Dwarfs

Red Giants Giants are brighter and more massive than main sequence stars of the same temperature

Betelgeuse in Orion

Arcturus in Bootes

Antares in Scorpius

White Dwarfs Smaller and dimmer than main sequence stars of the same temperature

Feedback: Privacy Policy Feedback
Do Not Sell My Personal Information
About project: SlidePlayer Terms of Service

© 2025 SlidePlayer.com. Inc. All rights reserved.