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Astronomy

Astronomy. SOLAR SYSTEM MODELS. GEOCENTRIC.  EARTH CENTERED SYSTEM DEVELOPED BY PTOLEMY  WAS ACCEPTED UNTIL THE 1960’S. HELIOCENTRIC.  SUN CENTERED SYSTEM DEVELOPED BY COPERNICUS  MODERN UNDERSTANDING OF THE STRUCTURE OF THE UNIVERSE.

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Astronomy

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  1. Astronomy

  2. SOLAR SYSTEM MODELS GEOCENTRIC EARTH CENTERED SYSTEM DEVELOPED BY PTOLEMY WAS ACCEPTED UNTIL THE 1960’S HELIOCENTRIC SUN CENTERED SYSTEM DEVELOPED BY COPERNICUS MODERN UNDERSTANDING OF THE STRUCTURE OF THE UNIVERSE

  3. CELESTIAL OBJECTS- OBJECTS OBSERVED IN THE SKY DURING THE DAY OR NIGHT. (PLANETS, SUN, MOON, STARS…) CONSTELLATION- A GROUP OF STARS THAT MAKE AN IDENTIFIABLE PATTERN IN THE SKY

  4. ROTATION A SPINNING ABOUT THE NORTH AND SOUTH AXIS EVIDENCE: THE APPARENT DAILY COUNTER- CLOCKWISE MOTION OF CELESTIAL OBJECTS AROUND POLARIS (NORTH STAR) IS BECAUSE OF EARTH’S ROTATION TOWARD THE EAST. (RATE = 15° PER HOUR) SOLAR DAY- THE AMOUNT OF TIME REQUIRED FOR THE EARTH TO ROTATE FROM ONE NOON TO THE NEXT. 15° X 24 HOURS = 360°

  5. CORIOLUS EFFECT HORIZONTAL DEFLECTION UNDERGONE BY ALL MOVING MATERIALS ON THE EARTH’S SURFACE NORTHERN HEMISPHER - DEFLECTED TO THE RIGHT (CLOCKWISE) SOUTHERN HEMISPHERE - DEFLECTED TO THE LEFT (COUNTER CLOCKWISE) LET’S SHOOT SOME CANNONS!!

  6. FOUCAULT PENDULUM AN EXPERIMENT TO DEMONSTRATE THE ROTATION OF THE EARTH

  7. REVOLUTION A SLIGHTLY ELLIPTICAL ORBIT AROUND THE SUN (COUNTER CLOCKWISE) 365.25 DAYS FOR ONE REVOLUTION EVIDENCE: SEASONAL CHANGE OF THE CONSTELLATIONS THE SOLAR DIAMETER VARIES IN A CYCLIC PATTERN PERIHELION - SUN IS THE LARGEST, OCCURS IN THE N.H. WINTER (SHORTEST DISTANCE BETWEEN THE EARTH & SUN) APHELION - SMALLEST, OCCURS IN THE N.H. SUMMER (LARGEST DISTANCE BETWEEN THE EARTH & SUN)

  8. SEASONS 23.5° THE EARTH’S TILT IS PARALLELISM OF THE EARTH’S AXIS – THE EARTH AXIS REMAINS PARALLEL THROUGHOUT ITS REVOLUTION AROUND THE SUN. LOCAL NOON – WHEN THE SUN REACHES ITS MAXIMUM ALTITUDE ZENITH – THE POINT DIRECTLY OVERHEAD **THE SUN’S RAYS CAN ONLY BE DIRECTLY OVERHEAD AT SOLAR NOON BETWEEN THE TROPICS (23.5° N OR S OF THE EQUATOR)

  9. EQUINOX – THE SUN IS IN THE ZENITH POSITION AT THE EQUATOR (MARCH 21ST AND SEPT. 23RD) 12 HOURS OF BOTH DAYLIGHT AND DARKNESS SUMMER SOLSTICE – THE SUN IS IN THE ZENITH POSITION AT THE TROPIC OF CANCER (JUNE 21ST ) LONGEST DAYLIGHT OF THE YEAR IN THE NORTHERN HEMISPHERE WINTER SOLSTICE – THE SUN IS IN THE ZENITH POSITION AT THE TROPIC OF CAPRICORN (DEC. 21ST) SHORTEST DAYLIGHT OF THE YEAR IN THE NORTHERN HEMISPHERE

  10. Summer Winter

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