15.4 Star Systems and Galaxies
... I. Star Systems and Planets A. Star system-groups of two or more stars 1. Binary stars - two stars or double stars a. Eclipsing binary-a system in which one star blocks the light from another II. Planets Around Other Stars A. Astronomers study gravitational effects on stars to see if there is a pla ...
... I. Star Systems and Planets A. Star system-groups of two or more stars 1. Binary stars - two stars or double stars a. Eclipsing binary-a system in which one star blocks the light from another II. Planets Around Other Stars A. Astronomers study gravitational effects on stars to see if there is a pla ...
Chapter 18 Study Guide
... Complete each question or statement with as much information as we covered in class. 1. What is a star? 2. Describe the process of star formation in 5 steps. ...
... Complete each question or statement with as much information as we covered in class. 1. What is a star? 2. Describe the process of star formation in 5 steps. ...
The HR Diagram
... • Where are stars most of their lives? • Where are they when they begin to die? • What are they after they use up their ...
... • Where are stars most of their lives? • Where are they when they begin to die? • What are they after they use up their ...
Hertzsprung - Russel Diagram
... 10. What color are the coolest stars? _____________ 11. What category of stars is hot but not very luminous? ______________________________ 12. If you know a stars color, you can determine it’s ______________________________________. 13. The H-R Diagram is based on what two criteria? A. ____________ ...
... 10. What color are the coolest stars? _____________ 11. What category of stars is hot but not very luminous? ______________________________ 12. If you know a stars color, you can determine it’s ______________________________________. 13. The H-R Diagram is based on what two criteria? A. ____________ ...
Stellar Properties and Stellar Evolution Study Guide Name Why
... Stellar Properties and Stellar Evolution Study Guide ...
... Stellar Properties and Stellar Evolution Study Guide ...
Place the stars in the proper sequence, following the
... 13. What is the color of the hottest stars? ___________________________________ 14. Which classification of star has the most energy? __________________________ a. How is a star’s temperature related to its energy? b. How is a star’s magnitude related to its energy? c. How is a star’s luminosity rel ...
... 13. What is the color of the hottest stars? ___________________________________ 14. Which classification of star has the most energy? __________________________ a. How is a star’s temperature related to its energy? b. How is a star’s magnitude related to its energy? c. How is a star’s luminosity rel ...
Extension worksheet – Topic 6 - Cambridge Resources for the IB
... The HR diagram below shows two main sequence stars, X and Y, and our Sun. ...
... The HR diagram below shows two main sequence stars, X and Y, and our Sun. ...
Characteristics of Stars WS Questions 1-20
... 1. If you could travel at the speed of light, how long would it take you to travel from Earth to the sun? ...
... 1. If you could travel at the speed of light, how long would it take you to travel from Earth to the sun? ...
Astronomy - Shelbyville Central Schools
... Evolution of Stars Nebula - Stars begin as a large cloud of gas and dust Main sequence – pressure from heat is in balance with gravity Giant – outer layers of the star expand and cool Supernova – star explodes White dwarf – outer layer contracts (about size of Earth) Neutron star – only neutrons ca ...
... Evolution of Stars Nebula - Stars begin as a large cloud of gas and dust Main sequence – pressure from heat is in balance with gravity Giant – outer layers of the star expand and cool Supernova – star explodes White dwarf – outer layer contracts (about size of Earth) Neutron star – only neutrons ca ...
STARS - AN INTRODUCTION
... They give off light and heat. The Sun is a medium sized star. It is bigger than all eight planets combined! However, there are stars a lot bigger than the Sun! The largest stars are called ...
... They give off light and heat. The Sun is a medium sized star. It is bigger than all eight planets combined! However, there are stars a lot bigger than the Sun! The largest stars are called ...
Chapter 21
... or __________________. Composition – The chemical composition of most stars is about 73 % ______________ and 25 % ____________________. How can astronomers infer which elements are found in stars? ____________________________ ________________________________________________________________________ ...
... or __________________. Composition – The chemical composition of most stars is about 73 % ______________ and 25 % ____________________. How can astronomers infer which elements are found in stars? ____________________________ ________________________________________________________________________ ...
Characteristics of Stars
... • White dwarfs are hot but not bright • Giants/super giants are bright but not hot ...
... • White dwarfs are hot but not bright • Giants/super giants are bright but not hot ...
Stars are classified according to their color
... between the stars. • Distance that light travels in one year. Its about 9.5 million million kilometers. That is not a typo! ...
... between the stars. • Distance that light travels in one year. Its about 9.5 million million kilometers. That is not a typo! ...
Name Date Period ______ 30.1 Characteristics of Stars Definitions
... 19. What are circumpolar stars? What is one example? ...
... 19. What are circumpolar stars? What is one example? ...
Star Life Cycle Web Quest
... 10: Our solar system formed from a ____________________________________________________generation nebula. 11. What two pieces of information classify stars? ...
... 10: Our solar system formed from a ____________________________________________________generation nebula. 11. What two pieces of information classify stars? ...
Physical properties of stars
... Absolute magnitude depends on: The size of the star The temperature of the star Apparent magnitude depends on: The size of the star The temperature of the star The distance of the star Pg. 444 scale of objects and their apparent magnitude. Absolute motion- the actual motion of stars in spa ...
... Absolute magnitude depends on: The size of the star The temperature of the star Apparent magnitude depends on: The size of the star The temperature of the star The distance of the star Pg. 444 scale of objects and their apparent magnitude. Absolute motion- the actual motion of stars in spa ...
Chapter 27 Review Guide// ESS
... 3. How do astronomers determine a star’s composition and temperature? 4. What are the two types of stellar motion? a. What causes the stars to “move” westward across the night sky? b. Why do we see different stars at different times of the year? ...
... 3. How do astronomers determine a star’s composition and temperature? 4. What are the two types of stellar motion? a. What causes the stars to “move” westward across the night sky? b. Why do we see different stars at different times of the year? ...
Chapter 30.1
... horizon. (Circling stars). Different stars become visible during different seasons. Three actual motions: ...
... horizon. (Circling stars). Different stars become visible during different seasons. Three actual motions: ...
Star catalogue
A star catalogue, or star catalog, is an astronomical catalogue that lists stars. In astronomy, many stars are referred to simply by catalogue numbers. There are a great many different star catalogues which have been produced for different purposes over the years, and this article covers only some of the more frequently quoted ones. Star catalogues were compiled by many different ancient peoples, including the Babylonians, Greeks, Chinese, Persians, and Arabs. Most modern catalogues are available in electronic format and can be freely downloaded from NASA's Astronomical Data Center.Completeness and accuracy is described by the weakest apparent magnitude V (largest number) and the accuracy of the positions.