'Celestial objects' presentation slideshows

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History of Astronomy

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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.

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Greek Astronomy

Greek Astronomy. Ancient View of the Cosmos. Universe is 2-D All celestial objects attached to a sphere. Celestial Sphere is close Climb a high mountain and touch the sky Celestial objects are self-luminous Earth is the center of the universe Objects move on perfect circles.

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Radio Astronomy, Technology, and the Noisy World

Radio Astronomy, Technology, and the Noisy World. Classroom Exercises in Radio Frequency Interference. What is radio astronomy?. The Radio Sky. The Optical Sky. Camelopardus. Auriga. Perseus. Taurus. What emits radio waves?. Recipe for Radio Waves Hot Gases

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JOYLYN G. ELPA

JOYLYN G. ELPA . RESOURCE SPEAKER. AS TRO NO MY. Astronomy is a natural science that deals with the study of celestial objects and phenomena that originate outside the atmosphere of Earth. . Astronomy

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The Solar System

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Greek Ontologies

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Stars

Stars What is a star? The objects that heat and light the planets in a system A star is a ball of plasma held together by its own gravity Nuclear reactions occur in stars (H ? He) Energy from the nuclear reactions is released as electromagnetic radiation Characteristics of Stars DISTANCE

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Stars

Stars. What is a star?. The objects that heat and light the planets in a system A star is a ball of plasma held together by its own gravity Nuclear reactions occur in stars (H ? He) Energy from the nuclear reactions is released as electromagnetic radiation. Characteristics of Stars.

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THE SOLAR SYSTEM

THE SOLAR SYSTEM. What is the Solar System ? Consists of the Sun and celestial objects bound to it by gravity. 8 planets ,166 moons, 4 dwarf planets and billions of small bodies, including asteroids, icy Kuiper belt objects, comets, meteoroids and interplanetary dust.

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Space Unit Lesson 1

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Models of the Solar System

Models of the Solar System. Centered on the earth: geocentric Centered on the sun: heliocentric. Geocentric Assumptions. Earth at center (aesthetics, physics) Earth motionless (physics) Uniform motion on circles for celestial objects (aesthetics, geometry). Geocentric.

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Chapter 2

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What can we see in the night sky?

What can we see in the night sky?. Astronomy. the study of what is beyond the Earth. The Universe. is everything that exists, including all matter and energy everywhere. Galaxies. Rotating collection of gas, dust, and billions of stars, planets, and other celestial objects. Stars (Luminous).

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Down to Basics

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The problem of Retrograde Motion

The problem of Retrograde Motion. Observations of Anomalous Motion Ignore it? Retrofit it? Revise the model with it?. All the Wheels we Move all the Same Way!. The Prime Mover Kick.

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Observing from Earth: Altitude of Polaris

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Chapter 12 Study Guide

Chapter 12 Study Guide Answer the following questions on binder paper following the format shown in class. In what ways can stars be different from each other? List the 5 star types in order of smallest to biggest. What is a light year? When and why would we use that measurement?

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