370 likes | 621 Views
Constellations we see all year round are called;. Circumpolar constellations Example of a circumpolar constellation is Little Dipper or Big Dipper. The star that is (almost) locate over our North Pole is . POLARIS The constellation that includes POLARIS is the Little Dipper (Ursa Minor).
E N D
Constellations we see all year round are called; • Circumpolar constellations Example of a circumpolar constellation is • Little Dipper or Big Dipper
The star that is (almost) locate over our North Pole is • POLARIS The constellation that includes POLARIS is the • Little Dipper (Ursa Minor)
What cultures are most noted for our stories of how the constellations came to be? • Ancient Greeks and Romans
What do astronomers use to measure distance to the stars? • Parallax What do we call the amount of light a star ACTUALLY GIVES OFF? • ABSOLUTE MAGNITUDE
This is the measure of light received from a star here on Earth. • APPARENT MAGNITUDE This is the distance light travels in one year Light year
How fast can light travel? • A. 25,000 km per hr. • B. 100,000 mi per hr • C. 300,000 km per hr • D. 300,000 km per sec • D
Which of these is true? Light can travel… • A. 9.5 x 10 12 km per sec • B. 9.5 x 10 12 km per year • C. 300,000 km per year • D. 3 x 107 km per year • B
In a star, what does color tell us? • The temperature of the star Color blue or white means • HOT Color red or orange means • COOL
What do we use to identify what elements make up a star? • Spectroscope to see the star’s Spectrum What part of the stars spectrum are we able to see? • Visible light-color
About the Sun; Hottest and inner most layer, where the energy is produced, is the • CORE Layer of Sun’s atmosphere that gives off light is • PHOTOSPHERE Areas on the surface of the sun that are COOLER than the areas around them: • SUNSPOTS
Age Temperature Made of Size Middle aged Medium Hydrogen fusing to helium Medium sized Tell me about the Sun
How long for light to travel from Sun to Earth? Next closest star (in distance) List 2 examples of how energy from the Sun arrives here at Earth 1. 8 minutes 2. 4.2 light years (Proxima Centauri) it is 270,000 times farther from Earth than the Sun 3. visible light, infrared and ultraviolet radiation, Tell me MORE about the Sun:
The following picture was taken fromFrom Core to Corona. Image credit:p.110,125,Kaler. 3/16/05. <http://fusedweb.pppl.gov/CPEP/Chart_pages/5.Plasmas/Sunlayers.html>
Identify the letter that is starred: Prominence
Identify the letter that is starred: Radiation zone
Identify the letter that is starred: Convection Zone
Identify the letter that is starred: Photosphere
Identify the letter that is starred: Chromosphere
Identify the letter that is starred: PHOTOSPHERE
SOLAR FLARE Identify the letter that is starred:
Constellations seen all year round The obvious shift in an objects position when viewed from 2 different angles. Distance light travels in a year Circumpolar constellations Parallax Light year VOCABULARY
4. Fictional stories of how constellations came to be. 5. Measure of the amount of light a star really gives off. This is used to indicate what elements a star is made of 4. Mythology 5. Absolute magnitude 6. spectrum
7. Used to graph stars using temperature and absolute magnitude. Large cloud of gas and dust that BEGINS a new star. Measure of the amount of star’s light as seen from Earth. H-R diagram 8. Nebula 9. Apparent magnitude
The Earth spinning on it’s axis The Earth moving in an ellipse around the sun. Areas cooler than those around them on the Sun. Huge stars that are very cool. The end of a star’s life Rotation Revolution Sunspot Super giant White dwarf
A place in the galaxy with a gravitational pull so strong even light cannot escape! A large collection of stars, gas and dust held by gravity. Light shifts as it moves towards or away from an object, what is that shift called? 15. Black hole 16. Galaxy 17. Doppler Effect
An object moving towards us will shift to the ___ end of the spectrum An object moving away from us will shift to the __ end of the spectrum Blue-violet Red According the Doppler Effect..
18. All celestial bodies, and all of space, the cosmos and all things that exist. 19. A pattern of stars. 20.Earth’s galaxy is the… 18. Universe 19. Constellation 20. Milky Way
What are the 3 types of galaxies? 22.Which type of galaxy is the Milky Way? 23.Where is our solar system found in the Milky Way? 21. Elliptical, spiral and irregular Spiral outer edge of a spiral arm
Dwarf Main sequence Nebulae Giant C B D A Using the terms below, put them in the correct order for a star from birth to death.
Universe Star Galaxy cluster Galaxy B D C A Put these in order from smallest to largest.
What is measured on the Y-axis? Luminosity or Absolute magnitude
What is measured on the X-axis? Surface temperature Or Spectral class
Which absolute magnitude or LUMINOSITY would be the brightest? 0 +5 +10 -5 -10 -10
What kind of star would you expect to find in the upper left corner? HOT & BRIGHT