'North celestial pole' diaporamas de présentation

THE UNIVERSE

THE UNIVERSE. Ancient ideas. Introduction Motion of the moon and the stars was observed by ancient civilizations. These cycles became associated with certain yearly events. (A) This photograph shows the path of stars around the North Star.

1.19k views • 72 slides

Observing the Sky

Observing the Sky. The Birth of Astronomy. Pre-Historic Astronomers. Need for Astronomy. Predicting seasons enables Survival Migration Store food (like squirrels) Plant crops in spring (after last frost?) Predict seasonal flooding Knowing time of day enables Survival

1.07k views • 50 slides

IS1101 Nothing to Something

IS1101 Nothing to Something. Mr Goh Hock Leong. Content. Celestial Sphere declination, right ascension vernal equinox, autumnal equinox, winter solstice & summer solstice celestial poles, celestial equator, ecliptic Seasons. Movement of Earth.

600 views • 45 slides

Chapter 1: The Cycles of the Sky

Chapter 1: The Cycles of the Sky. Constellations help astronomers know the positions of celestial objects. Zodiac signs. These coordinates can be used to describe the position of stars locally. zenith. Altitude. Azimuth. Angular distances of stars are measured in degrees.

611 views • 41 slides

The Sky

The Sky. Edward M. Murphy Space Science for Teachers 2005. Horizon and Zenith. It is sometimes useful to think of the sky as a great dome over our heads. The horizon is where the dome meets the Earth. The zenith is the point directly overhead.

579 views • 40 slides

The Sky

The Sky. Edward M. Murphy Space Science for Teachers 2005. Horizon and Zenith. It is sometimes useful to think of the sky as a great dome over our heads. The horizon is where the dome meets the Earth. The zenith is the point directly overhead.

646 views • 40 slides

Motions of and Distances to Stars: Chapter 17 and 19

578 views • 39 slides

Sun - Major Misconceptions

490 views • 35 slides

The Motions of the Earth

531 views • 34 slides

The Solar System

718 views • 22 slides

The Solar System

365 views • 22 slides

Where am I?

293 views • 19 slides

Celestial Sphere

Celestial Sphere. Imagine the sky as a hollow sphere The stars are attached to this hollow sphere, they rise in the east and set in the west The Sun, Moon and the planets wander on this sphere Celestial Sphere Very convenient But why spherical?? Pythagoras-> Shadow of the Earth.

363 views • 17 slides

EQ:What are some historical observations of the sky and concluding theories?

241 views • 17 slides

Green Bank Laser Rangefinders

302 views • 16 slides

The Celestial Sphere

The Celestial Sphere. (The sphere should really be rotating, not Earth). An Ancient Greek Idea. Imagine the universe to be a hollow sphere with the Earth at the center The Celestial Sphere Idea based upon how things _________ to be The pattern of stars in the sky ________________

1.28k views • 16 slides

270 views • 15 slides

Apparent Motion

Apparent Motion. What is apparent motion?. Important to understand what we see and what is actually happening. Apparent motion is what we see from Earth Actual motion is what is really happening

310 views • 8 slides

Terrestrial Coordinates (useful for specifying locations on the surface of the Earth)

Terrestrial Coordinates (useful for specifying locations on the surface of the Earth). Longitude -- East/West Coordinate -- 0 ? at the Prime Meridian (the Great Circle through Greenwich England) -- increases to either 180 ?E or 180 ?W at the International Date Line

295 views • 7 slides

Bad Astronomy Teacher Presentation

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