The Sun and Light Years

What do you already know about stars? The Sun and Light Years Our Sun What do you already know about stars?

The Sun and Light Years Our Sun Characteristics: Medium sized star In relation to the 50 stars closest to earth, it is the 4th largest in mass The suns light takes 8.3 minutes to reach the earth

Which size do you think the sun is? Medium Size Star Which size do you think the sun is?

Location in our Spiral Galaxy The Sun and Light Years Our Sun Location in our Spiral Galaxy Milky Way Galaxy on an edge of a spiraled arm, far away from the center of the galaxy

Location in our Solar System The Sun and Light Years Our Sun Location in our Solar System Solar system: It is the center of our solar system 149.6 million Kilometers away form the earth Closest star to earth

The Sun and Light Years Light Years Light year: the distance light travels in one year It is a unit of speed, not time It is similar to miles per hour

The Sun and Light Years Light Years The Speed of Light The speed of light travels at 300,000 kilometers per second So, for every 1 second, light travels 300,000 kilometers

The Sun and Light Years Light Years Why do we use light years? Because the universe is so huge, light years are used to measure distance

The Sun and Light Years Light Years Using Telescopes When looking through a telescope, the light that is seen has traveled to earth What does that tell us about the universe and what we can see from earth?

The Sun and Light Years Light Years Answer: There is a time delay when we see light from space, depending on the distance of the object

The Sun and Light Years Light Years If a star’s light takes 5 seconds to travel to earth, how far away is the star?