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Eclipse PowerPoint
Eclipse PowerPoint

... • The Earth is between the Sun and the Moon. • Lunar eclipses are visible from anywhere on the night side of Earth. • Lunar eclipses can only occur during Full Moon phase. • Lunar eclipses are more common than solar eclipses. – The Earth’s shadow is much larger. – Occur every 2-3 years. – Totality l ...
Physics - Content by Unit
Physics - Content by Unit

... matter problem." By the early 1970s, technology, astronomy, and particle physics had advanced enough that the dark matter problem seemed more tractable. General relativity and nuclear physics had come together in the Big Bang theory of the early universe, and the detection of microwave photons from ...
Apparent motion
Apparent motion

... objects appear • Celestial objects – objects outside of the earth’s atmosphere that can be seen in the sky • Zenith – highest point on celestial sphere, directly above observer’s head • Apparent motion – the motion an object appears to have, but which isn’t real ...
Untitled
Untitled

... would be most surprising to observe in an extra-solar system of planets? A. The planets nearest to the star have a lower density than the planets farther out. B. Several planets show large tilts of their rotation axis compared to the plane of their orbits. C. All the gas giants have moons. D. Severa ...
Precession of the Earth`s Axis
Precession of the Earth`s Axis

... Hipparchus first estimated Earth’s precession around 130 BC, adding his own observation to those of Babylonian and Chaldean astronomers in the preceding centuries. In particular they measured the distance of the stars like Spica to the Moon and Sun at the time of lunar eclipses, and because he could ...
Ch 22-2
Ch 22-2

... • Rotation: the turning or spinning of a body on its axis o Main result is day and night o Standard for telling time (24 hours in one rotation) o Sidereal day: time it takes for Earth to make one complete rotation (360 degrees) with respect to a star other than our Sun • Measured by the time it take ...
PHYS3380_110215_bw - The University of Texas at Dallas
PHYS3380_110215_bw - The University of Texas at Dallas

... The Asymptotic Giant Branch The core will soon consist only of C+O, and in a similar way to before, the CO-core grows while a He-burning shell source develops. These two shell sources force expansion of the envelop and the star evolves up the red giant branch a second time - this is called the asymp ...
Gravitatio
Gravitatio

... the cannonball could be fired such that the trajectory of the falling cannonball matched the curvature of the Earth.  If such a speed could be obtained, then the cannonball would fall around the Earth instead of into it; the cannonball would fall towards the Earth with ever colliding with it and su ...
study-notes-for-2016-2017-1st-qtr-exam
study-notes-for-2016-2017-1st-qtr-exam

... The Earth has several unique properties that that make it different from other celestial bodies within our solar system. First of all, Earth sustains life while no other celestial body has been found to sustain life. The Earth is unique and can sustain life for the following reasons. Because of the ...
movement in the solar system
movement in the solar system

... night. The stars appear to rise and set slowly as the night goes on. The stars and sun make their own light. From night to night, some points of light seem to move among the stars. These are the planets. Planets, like the earth and moon do not make light. They get light from the sun. It has been kno ...
CHARACTERISTICS OF STARS
CHARACTERISTICS OF STARS

... The brightness of a star depends on both its size and its temperature. How bright a star looks from Earth depends on both its distance and how bright the star actually is. The brightness of a star can be described in 2 different ways: apparent brightness and absolute brightness. A star’s apparent br ...
Implications of the Search and Discovery of Life in the Universe
Implications of the Search and Discovery of Life in the Universe

... • Populations expand exponentially • It would take an exponentially-growing civilization only a few million years to fill the Galaxy, even at sub-light speeds • 2 to the 40th power is over a trillion • If it takes 10,000 years for a colony to achieve interstellar travel, 40 doubling times is only 40 ...
Implications of the Search and Discovery
Implications of the Search and Discovery

... • Populations expand exponentially • It would take an exponentially-growing civilization only a few million years to fill the Galaxy, even at sub-light speeds • 2 to the 40th power is over a trillion • If it takes 10,000 years for a colony to achieve interstellar travel, 40 doubling times is only 40 ...
Introduction: Gravity
Introduction: Gravity

... -Identify questions being asked in an investigation and gather evidence that helps answer the question (4-5 INQA) -Be able to plan an investigation that relates to the given question and be able to collaborate and select appropriate tools (4-5 INQB) -Conduct or critique an experiment and share if it ...
Constellations
Constellations

... configurations called constellations, which ancient astronomers named after mythological beings, heroes, and animals—whatever was important to them. ...
VISIT TO NORMAN LOCKYER OBSERVATORY IN SIDMOUTH
VISIT TO NORMAN LOCKYER OBSERVATORY IN SIDMOUTH

... - produced by debris from the comet Swift-Tuttle. The peak of the shower is after sunrise on the morning of the 13th so the early morning of the 13th August will give us the best chance, if clear, of viewing the shower, but the peak is quite broad and so its well worth observing on the nights before ...
The First Thousand Exoplanets
The First Thousand Exoplanets

... The First Discoveries The age of exoplanet discovery was formally ushered in on October 6, 1995, when Michel Mayor and Didier Queloz of the Geneva Observatory announced the discovery of an exoplanet half Jupiter’s mass orbiting the G star 51 Pegasi (Mayor and Queloz 1995). While the exoplanet was u ...
scale_moon
scale_moon

... - phases of the moon caused by reflection of light from sun, not by earth’s shadow, as commonly thought - ideas of a new moon, full moon, when these happen - how celestial movement corresponds to our sense of time (months, years) - difference between eclipse and phases - Extensions for older kids – ...
Some Basic Principles from Astronomy
Some Basic Principles from Astronomy

... object defines a lower limit on the radius, r, of the observable Universe. We will return to this. ...
Solar System Review
Solar System Review

... Space probe ...
Universe and Solar System
Universe and Solar System

... Situation: The first space probe designed to reach stars outside our solar system, and eventually, the center of our galaxy, is to be announced by the President. The probe will study our solar system. Because the scientists who study those images will be from your generation, the President plans to ...
Lec 7 Copernicus I
Lec 7 Copernicus I

... earth. In Fig. 2, the planet P is moving eastward with the deferent and is at its maximum speed. If P were on the inside of D (between D and E), then P would be moving westward, against its deferent, and would be at its slowest speed (and appearing to retrogress). Planetary motions accounted for by ...
Chapter 29 Our Solar System
Chapter 29 Our Solar System

... perihelion, aphelion, focus, major axis, semi-major axis, the Sun, and eccentricity. b. Determine the relative shape (elongated oval, oval, circle) of an orbit when given its eccentricity value. c. Explain Kepler’s 2nd and 3rd Laws. 3. Relate gravity to the motions of celestial bodies. This means I ...
The Life Cycle of Stars
The Life Cycle of Stars

... When the hydrogen supply in the core begins to run out, and the star is no longer generating heat by nuclear fusion, the core becomes unstable and contracts. The outer shell of the star, which is still mostly hydrogen, starts to expand. As it expands, it cools and glows red. The star has now reached ...
How the Earth Moves Transcript
How the Earth Moves Transcript

... stars – in reality the stars are widely separated in their distance away from Earth, and only appear to be close as they lie in the same direction when viewed from our vantage point. However, that wasn’t clear to most ancient civilisation, who (quite reasonably) believed that all the stars were loc ...
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History of astronomy



Astronomy is the oldest of the natural sciences, dating back to antiquity, with its origins in the religious, mythological, cosmological, calendrical, and astrological beliefs and practices of pre-history: vestiges of these are still found in astrology, a discipline long interwoven with public and governmental astronomy, and not completely disentangled from it until a few centuries ago in the Western World (see astrology and astronomy). In some cultures, astronomical data was used for astrological prognostication.Ancient astronomers were able to differentiate between stars and planets, as stars remain relatively fixed over the centuries while planets will move an appreciable amount during a comparatively short time.
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