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Diameter of the Milky Way
Diameter of the Milky Way

Saturn, the R - Teacher|Greycaps
Saturn, the R - Teacher|Greycaps

... Earth takes 24 hours to complete a day, while Saturn takes around 10 hours to complete a day. Saturn makes a complete orbit around the sun in 29 Earth years. ...
•TODAY •Chapter 5/10: The Sun Required: Sec. 1
•TODAY •Chapter 5/10: The Sun Required: Sec. 1

... keep shining for 5 billion more years. ...
Investigating the Celestial Sphere
Investigating the Celestial Sphere

... Australia is 33.8° S or 33.8 degrees below the equator. Longitude can be given in degrees or hours and is the great circle that goes through both poles and your location. It is given in degrees west or east of the prime meridian. The prime meridian 0° was set to run through Greenwich London by polit ...
Latitude and Longitude in the Northern Hemisphere worksheet
Latitude and Longitude in the Northern Hemisphere worksheet

... embedded brass strip that runs up to the wall, ending at a sealed glass door. Everybody who comes to see for himself predictably has his photograph taken straddling the line with one foot in each hemisphere. Even reporters have been known to do it. Because clocks in the world are set in relation to ...
ASTR 100 - College of San Mateo
ASTR 100 - College of San Mateo

... Mystery of gamma ray bursts Our galaxy Dark matter, dark energy and the fate of the universe ...
May 2015
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... As everything expanded, gases and dust that were close to each other were attracted, and clumped together by the force of gravity to form galaxies, stars and planetary systems, comets and other celestial objects. Very large stars live a relatively short time and die in massive, cataclysmic explosion ...
DTU 8e Lecture PPT Chap 1 Discovering the Night Sky v2
DTU 8e Lecture PPT Chap 1 Discovering the Night Sky v2

... The phases of the Moon are caused by the relative positions of the Earth, Moon, and Sun. The Moon completes one cycle of phases in a synodic month, which averages 29½ days. ...
Chapter 6: The Solar System
Chapter 6: The Solar System

... planets. These include Pluto, once considered the ninth planet, and the larger, more distant 2003 UB313 (named Eris). Ceres, the largest object in the asteroid belt (located between the orbits of Mars and Jupiter), is also a dwarf planet. Space probes have examined all eight planets. Only Earth’s Mo ...
Exercise set five
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Jupiter=Zeus=Indra
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... b)  It has belts and zones c)  It contains liquid metallic hydrogen d)  It is emitting more heat/energy than it receives from the sun e)  It rotates so quickly ...
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Define the following terms in the space provided

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Brownies + Earth Day
Brownies + Earth Day

... Our planet earth is one of the smaller planets, but it is pretty large at 7,926 miles in diameter. It takes almost exactly 24 hours to rotate and that’s how we get our day. Did you know that the sun is not a planet but a star? Just like the stars you see at night. Though it is more than 100 times l ...
THE METER STICK MODEL OF THE SOLAR SYSTEM
THE METER STICK MODEL OF THE SOLAR SYSTEM

... Materials: A one-inch piece of string for each student When astronomers measure distances in space, units such as feet, meters, miles, and kilometers are too small to be practical. For example, the sun is nearly 25,000,000,000,000 miles away from its nearest neighbor, Proxima Centauri. Numbers this ...
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... 17. As you move east from one time zone to the next, you move your watch • ahead 1 hour 18. The amount of time it takes the moon to make one complete rotation and revolution is • 27.3 days 19. When more than half of the moon is visible from the earth, the moon is in its • Gibbous phase 20. When the ...
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Question Title

... a)Some planetoids will collide with such high energies that they do not break into pieces. Instead they meld to form one planetoid. b)Other planetoids will break into smaller pieces. In this case, the smaller pieces will likely be pulled in by the gravitational force of the largest remaining piece, ...
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... 3. Describe the scale of distances and sizes in the universe, and give several examples. What is energy and how do astronomers use motion and gravity to understand the universe? 4. How is mass different from weight 5. Where do objects get their energy? 6. What determines the strength of gravity? 7. ...
STARS AND CONSTELLATIONS
STARS AND CONSTELLATIONS

... f. If ten times it’s size, Jupiter would be a star (it is a brown star). g. 16 Moons h. Giant red (pink) spot, three to four Earth’s fit into this area of a large storm system. ...
Physical Sciences Astronomy: The Formation of The Solar System
Physical Sciences Astronomy: The Formation of The Solar System

... a)Some planetoids will collide with such high energies that they do not break into pieces. Instead they meld to form one planetoid. b)Other planetoids will break into smaller pieces. In this case, the smaller pieces will likely be pulled in by the gravitational force of the largest remaining piece, ...
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Sun - Cloudfront.net
Sun - Cloudfront.net

... Sun, Earth, and Moon • The Sun is the star at the center of the Solar System. It is almost perfectly spherical and consists of hot plasma interwoven with magnetic fields. It has a diameter of about 1,392,684 km (865,374 mi), around 109 times that of Earth, and its mass (1.989×1030 kilograms, approx ...
Chapter 9 Asteroids, Comets, and Dwarf Planets
Chapter 9 Asteroids, Comets, and Dwarf Planets

... 2. It depends on if it was the gas tail or the dust tail 3. Earth might be knocked out of its orbit or its axis might get tilted 4. Nothing. Halley’s comet did this and nothing happened ...
Testing - School District of Lomira
Testing - School District of Lomira

... What have we learned? • How does solar activity affect humans? • Bursts of charged particles ejected from the Sun during periods of high solar activity can hamper radio communications,disrupt electrical power generation,and damage orbiting satellites. ...
Astronomy Unit - rachaelreeves
Astronomy Unit - rachaelreeves

... which is why in very dark skies we can see its bands Exploration: Show a blank sketch of the solar system and give worksheet with sketch on it to class. Have students provide names for as many objects as possible on their own. Have students provide answers for worksheets- project worksheet onto whit ...
Jan 2015 - Bluewater Astronomical Society
Jan 2015 - Bluewater Astronomical Society

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Orrery



An orrery is a mechanical model of the solar system that illustrates or predicts the relative positions and motions of the planets and moons, usually according to the heliocentric model. It may also represent the relative sizes of these bodies; but since accurate scaling is often not practical due to the actual large ratio differences, a subdued approximation may be used instead. Though the Greeks had working planetaria, the first orrery that was a planetarium of the modern era was produced in 1704, and one was presented to Charles Boyle, 4th Earl of Orrery — whence came the name. They are typically driven by a clockwork mechanism with a globe representing the Sun at the centre, and with a planet at the end of each of the arms.
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