ASTRO REVIEW 14
... 10. Compare and contrast the geocentric and the heliocentric models of the universe. ...
... 10. Compare and contrast the geocentric and the heliocentric models of the universe. ...
Seasons
... rotation, the stars and planets seem to rotate counterclockwise around Polaris at approximately 15o per hour. WHY 15o per hour? ii. The apparent daily motion of stars, moon, and planets is due to Earth’s rotation toward the east at a rate of 15o per hour. How long does it take the earth to rotate 36 ...
... rotation, the stars and planets seem to rotate counterclockwise around Polaris at approximately 15o per hour. WHY 15o per hour? ii. The apparent daily motion of stars, moon, and planets is due to Earth’s rotation toward the east at a rate of 15o per hour. How long does it take the earth to rotate 36 ...
Right Ascension / Declination
... of the equator having a positive value and south having a negative value. (The north and south poles are +90 and -90, respectively) A reference point was needed from which to begin measuring longitude (Grenwich, England), and astronomers also had to decide on a point to begin measuring right ascensi ...
... of the equator having a positive value and south having a negative value. (The north and south poles are +90 and -90, respectively) A reference point was needed from which to begin measuring longitude (Grenwich, England), and astronomers also had to decide on a point to begin measuring right ascensi ...
Dynamics of the Earth
... Dynamics of the Earth Time Historically, a day is a time interval between successive upper transits of a given celestial reference point. upper transit – the passage of a body across the celestial meridian moving westward hour angle – the westward angular distance of an object from the meridian; neg ...
... Dynamics of the Earth Time Historically, a day is a time interval between successive upper transits of a given celestial reference point. upper transit – the passage of a body across the celestial meridian moving westward hour angle – the westward angular distance of an object from the meridian; neg ...
LAB1_1SEP09
... What precision is required? The distance between two points lying on the same longitude that are separated by 1° of latitude is 111 km. One degree is not precise enough for most purposes. One-tenth of a degree will probably get you to a city or its suburbs (11 km). Google Earth displays latitude an ...
... What precision is required? The distance between two points lying on the same longitude that are separated by 1° of latitude is 111 km. One degree is not precise enough for most purposes. One-tenth of a degree will probably get you to a city or its suburbs (11 km). Google Earth displays latitude an ...
Science 9 – Space Exploration
... A. measure the angle between the Moon and any given star B. identify details in the far reaches of the night sky C. chart astronomical position and predict the movement of stars D. measure a star’s height above the horizon 8. Arabian Astronomers used an instrument, called an astrolabe to … A. measur ...
... A. measure the angle between the Moon and any given star B. identify details in the far reaches of the night sky C. chart astronomical position and predict the movement of stars D. measure a star’s height above the horizon 8. Arabian Astronomers used an instrument, called an astrolabe to … A. measur ...
BABYLON and SUMERIA 3000BC
... The Aztec calendar wheel is represented by 13 months of 20 days each, as determined by the movement of the Sun, Moon, and stars. ©Library of Congress ...
... The Aztec calendar wheel is represented by 13 months of 20 days each, as determined by the movement of the Sun, Moon, and stars. ©Library of Congress ...
Astronomy Review HOW SCIENTISTS BELIEVE THE SOLAR
... the last stage in the life cycle of an average size star like the Sun. ...
... the last stage in the life cycle of an average size star like the Sun. ...
The Sun - rosedalegrade9astronomy
... years old. – It will last another 5 billion years – Has the mass of more than 300 000 Earths – So big that gravity forces everything together so tight that there are nuclear reactions and a great amount of heat. -Hydrogen atoms are squashed together to form helium (a nuclear fusion reaction). ...
... years old. – It will last another 5 billion years – Has the mass of more than 300 000 Earths – So big that gravity forces everything together so tight that there are nuclear reactions and a great amount of heat. -Hydrogen atoms are squashed together to form helium (a nuclear fusion reaction). ...
Solar System
... The Sun • Fusion-The process of converting hydrogen to helium. – Albert Einstein came up with the theory of fusion. E=mc2 – Each second our sun gives off as much energy as equal to that of 200 BILLION hydrogen bombs. – The sun makes up more than 99% of our Solar System. ...
... The Sun • Fusion-The process of converting hydrogen to helium. – Albert Einstein came up with the theory of fusion. E=mc2 – Each second our sun gives off as much energy as equal to that of 200 BILLION hydrogen bombs. – The sun makes up more than 99% of our Solar System. ...
Seasonal Motion
... How do we “see” that the earth is moving around the sun or v.v.? • Small discrepancy between sun’s motion and motion of stars • Sidereal vs solar day • At noon, say, the sun is not exactly in front of the same stars on the next day. – It is exactly in the south – The stars are faster, so a little w ...
... How do we “see” that the earth is moving around the sun or v.v.? • Small discrepancy between sun’s motion and motion of stars • Sidereal vs solar day • At noon, say, the sun is not exactly in front of the same stars on the next day. – It is exactly in the south – The stars are faster, so a little w ...
14.1 History of the Solar System
... the planets still rotated around earth, but in small circles around a ...
... the planets still rotated around earth, but in small circles around a ...
14-1 History of Solar System Study
... the planets still rotated around earth, but in small circles around a ...
... the planets still rotated around earth, but in small circles around a ...
Finding your longitude The trickier part of celestial navigation
... • Arbitrary starting point • Longitude 0 degrees at Greenwich, England ...
... • Arbitrary starting point • Longitude 0 degrees at Greenwich, England ...
PowerPoint 2.6Mb
... Solar vs Sidereal Time The Solar day is not the same as the Sidereal day (“sidereal” means when a star crosses the meridian) A sidereal day is 4 minutes shorter (due to Earth's orbiting Sun), so stars come up 4 minutes sooner every (solar) day ...
... Solar vs Sidereal Time The Solar day is not the same as the Sidereal day (“sidereal” means when a star crosses the meridian) A sidereal day is 4 minutes shorter (due to Earth's orbiting Sun), so stars come up 4 minutes sooner every (solar) day ...
Seasons
... Great Pyramid and Thuban, the closest star to the rotational axis of the earth in 4420 B.C. • Betelguese, which marked the Vernal Equinox is also aligned with the southern shaft in the King’s chamber. • And others… ...
... Great Pyramid and Thuban, the closest star to the rotational axis of the earth in 4420 B.C. • Betelguese, which marked the Vernal Equinox is also aligned with the southern shaft in the King’s chamber. • And others… ...
2b Astronomer space units
... the mysteries of the universe. Sun dials help tell time each day ...
... the mysteries of the universe. Sun dials help tell time each day ...
Document
... •to find the definition “Solar System”, •to tell about some interesting facts about our solar system, •to find out why people are so interested in exploration of our Universe. ...
... •to find the definition “Solar System”, •to tell about some interesting facts about our solar system, •to find out why people are so interested in exploration of our Universe. ...
