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Sun, Moon, and Earth Review Sheet
Sun, Moon, and Earth Review Sheet

...  The Earth rotates on its axis every 24 hours, which causes us to have day and night.  The Earth revolves around the sun every 365 ¼ days, causing us to have four seasons.  Earth is tilted and spins on its axis, which is an invisible line that runs through Earth’s North and South poles. Moon  Th ...
Slide 1
Slide 1

... • The ancient Greeks were the first to use logical scientific method to try to explain the nature. • The same scientific method was used by the scientists of the 15th and 16th century to finally establish the heliocentric model of the solar system. • Tyco obtained very precise observations of planet ...
LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034
LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

... 13. Derive cassini’s formula for refraction, indicating the assumptions made. 14. If the moon’s horizontal parallax is 57’ and her angular diameter is 32’, find her radius and her distance from the earth. (earth’s radius = 4000 miles). 15. Derive Newton’s deductions from Kepler’s laws. 16. Describe ...
NIE10x301Sponsor Thank You (Page 1)
NIE10x301Sponsor Thank You (Page 1)

... universe, and everything else, Moon, Sun, planets, stars, revolved around it. In order to account for certain observed idiosyncrasies, Ptolemy added circular paths within the planets’ orbital paths. This view of the universe persisted for 1400 years. Our present understanding of planetary motion beg ...
Distance - courses.psu.edu
Distance - courses.psu.edu

WK7
WK7

... (rebound) Supernova events. ...
the sun moon and the earth!
the sun moon and the earth!

Solar System and Astronomy puzzle 001
Solar System and Astronomy puzzle 001

... a star system consisting of two stars orbiting around their common center of mass 10. natural satellite 12. a massive, gravitationally bound system consisting of stars, stellar remnants, an interstellar medium of gas and dust 13. growth of a massive object by gravitationally attracting more matter ...
My notes: Lecture #1
My notes: Lecture #1

... Do an example: Jupiter 5.2AU then P2 = 5.23 therefore P=11.86 years !!! ...
1 - Alice Pevyhouse
1 - Alice Pevyhouse

... 8. Within a constellation, a recognizable pattern of stars is often called? 9. The Sun’s apparent path around the celestial sphere is called? 10. In Ptolemy’s system the planets orbit the Earth and not the Sun. How did the system explain the retrograde motion of planets like Jupiter? 11. We now know ...
History of Astronomy
History of Astronomy

... Angular distance between Syene and Alexandria ~ 70 Distance between Syene and Alexandria ~ 5,000 stadia Earth Radius ~ 40,000 stadia, which is probably ~ 14 % too large – better than any previous radius estimate. ...
Gravitation
Gravitation

... Galileo became convinced that Copernicus was correct by observations of the Sun, Venus, and the moons of Jupiter using the newly-invented telescope.  Perhaps Galileo was motivated to understand inertia by his desire to understand and defend Copernicus’ ideas. ...
Chapter03
Chapter03

... I’ve found that many students think anyone who lived before 1900 (or perhaps even 1980) was hopelessly ignorant and dull. I love to use the accomplishments of the later Greek astronomers to teach them otherwise. Students seem impressed by Aristarchus’s work showing the enormous size of the solar sys ...
Chapter 2
Chapter 2

Time
Time

... Time • What Time Is It? Before 1884, almost every town in the world kept its own local time. There were no national or international conventions which set how time should be measured, or when the day would begin and end, or what length an hour might be. However, with the vast expansion of the railwa ...
11.3 Measuring Distances in Space
11.3 Measuring Distances in Space

... are the smallest objects at 10-18 m while our universe is estimated to be 1026 m. This is a total difference of 1044 from smallest to largest things in our universe. ...
Which object is a meteor?
Which object is a meteor?

... (must be an asteroid) • Not Object 4 because it is not in space (meteorite?) • CORRECT ANSWER: Object 3 (a meteor is a streak of light produced by friction with air when an object (rock) from space enters a planet’s atmosphere) ...
Introduction to Basic Stargazing Part II - Naples Free-Net
Introduction to Basic Stargazing Part II - Naples Free-Net

... “parallax of one second”. Like the astronomical unit, astronomers use it for computational efficiency. It is equal to about 3.26 light-years or 19 trillion miles. Measuring the parallax of a star is the best and most accurate way of measuring great distances, (land surveyors use it all the time), if ...
Science Curriculum Map
Science Curriculum Map

... (A) describe components of the universe, including stars, nebulae, and galaxies, and use models such as the Herztsprung-Russell diagram for classification; (B) recognize that the Sun is a medium-sized star near the edge of a disc-shaped galaxy of stars and that the Sun is many thousands of times clo ...
E. Sci. Astronomy Notes
E. Sci. Astronomy Notes

... and comets have elliptic al orbits (oval) The eccentr icity or “out-of-roundness” of an ellipse can be calculated: Eccentricity = Distance between major foci Length of major axis Gravitation is the attractive force between all objects The greater the mass the greater the gravity ...
Jan. 14 – Jan. 21
Jan. 14 – Jan. 21

... R is the radius of the circular path (m) The planets are maintained in a roughly circular orbit by the force of the sun’s gravity pulling them inward. This provides an explanation for Kepler’s second law and leads to the following calculation. ...
CRCT Review 1
CRCT Review 1

... 17. If you were to watch the stars all night, they would seem to A. stay in exactly the same place in the sky. B. move across the sky at night, as the Sun does during the day. C. go in circles around the point straight up from where you are. D. move across the sky at night, in the opposite directio ...
here - North Central Kansas Astronomical Society
here - North Central Kansas Astronomical Society

... History Kepler 1627 makes first prediction of transits for 1631 & 1639. 1631 at night in Europe. 1639 Jeremiah Horrocks in England corrected, somewhat, Kepler’s calculations to find 3 pm Dec. 1639. He and his friend Crabtree observed it. ...
handout
handout

... They were believed to represent great _________________ and mythological figures. Their position in the sky seemed to tell _________________ that were handed down from generation to generation over thousands of years ...
Chapter 2: Emergence of Modern Astronomy
Chapter 2: Emergence of Modern Astronomy

... Measure synodic period (position relative to Sun) then calculate sidereal period (change sign for superior planets) ...
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Astronomical unit

The astronomical unit (symbol au, AU or ua) is a unit of length, roughly the distance from the Earth to the Sun. However, that distance varies as the Earth orbits the Sun, from a maximum (aphelion) to a minimum (perihelion) and back again once a year. Originally conceived as the average of Earth's aphelion and perihelion, it is now defined as exactly 7011149597870700000♠149597870700 meters (about 150 million kilometers, or 93 million miles). The astronomical unit is used primarily as a convenient yardstick for measuring distances within the Solar System or around other stars. However, it is also a fundamental component in the definition of another unit of astronomical length, the parsec.
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