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Periodic Familes and MOY 02/07. Agenda: Warm Up Correct quizzes 45 minutes for project HR Diagrams and MOY review Light Years. Please pick up the warm up and answer the FIRST question . The EARTH is 93 Million Miles from the SUN.
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Periodic Familes and MOY 02/07 Agenda: • Warm Up • Correct quizzes • 45 minutes for project • HR Diagrams and MOY review • Light Years Please pick up the warm up and answer the FIRST question
The EARTH is 93 Million Miles from the SUN.
Distances in our Solar System are measured inASTRONOMICAL UNITS (AU).
LIGHT YEARS IS A MEASURE OF distance!!! ALIGHT YEARIS THEDISTANCE LIGHT TRAVELS IN ONE YEAR!!!
Scientist use LIGHT YEARS becauseSTARSare too far away from each other to use… feet feet meters inches kilometers astronomical units miles
One LIGHT YEAR is 10,000,000,000,000,000 meters or 16 10 X 10 meters 1 year 1 year 1 year 1 year 1 year 1 x 1016 1 x 1016 1 x 1016 1 x 1016 1 x 1016 Five Light Years = 5 x 1016 meters
43 Light Years from EARTH It takes 43 (human) years for the light from this star to reach earth! • By the time you see the light 43 years have passed. • The light was created before most of your parents were born.