Wazzat Mean - Peterborough Astronomical Association
... nearly undetectable levels. Retrograde When an object moves in the reverse sense of “normal” motion. For example, most bodies in the solar system revolve around the Sun and rotate counterclockwise as seen from above (north of) Earth’s orbit; those that orbit or spin clockwise have retrograde motion. ...
... nearly undetectable levels. Retrograde When an object moves in the reverse sense of “normal” motion. For example, most bodies in the solar system revolve around the Sun and rotate counterclockwise as seen from above (north of) Earth’s orbit; those that orbit or spin clockwise have retrograde motion. ...
HighFour General Sciences Round 8 Category A: Grades 4 – 5
... system: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune — and Planet Nine. A The distance from Earth to the sun is called an astronomical unit, or AU, which is used to ...
... system: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune — and Planet Nine. A The distance from Earth to the sun is called an astronomical unit, or AU, which is used to ...
The Copernican Revolution
... one moon. Both planets closer to the Sun than Earth have no moons. Comets orbit the Sun also. They are dirty icebergs (or icy dirtballs) orbiting along extremely stretched-out (meaning, highly eccentric) ellipses. Many of the comets we see as they pass near the Sun take many thousands of years to ...
... one moon. Both planets closer to the Sun than Earth have no moons. Comets orbit the Sun also. They are dirty icebergs (or icy dirtballs) orbiting along extremely stretched-out (meaning, highly eccentric) ellipses. Many of the comets we see as they pass near the Sun take many thousands of years to ...
Time, Day, Month, and the Moon
... • Why can we see the Moon at all? The Moon is Illuminated by the Sun! ...
... • Why can we see the Moon at all? The Moon is Illuminated by the Sun! ...
Lesson #4: The Moon and its Phases
... hometown. I have my students rotate in a counterclockwise direction to simulate the direction as seen from the North Pole. (Midnight is when they have their backs to the sun.) Students can also rotate to show dawn and dusk in their hometowns and get an idea why the sun appears to rise in the east an ...
... hometown. I have my students rotate in a counterclockwise direction to simulate the direction as seen from the North Pole. (Midnight is when they have their backs to the sun.) Students can also rotate to show dawn and dusk in their hometowns and get an idea why the sun appears to rise in the east an ...
Astronomy 111 Overview of the Solar system
... astronauts); the Moon and then Mars (captured from ground-based telescopes); and Jupiter, Saturn, Uranus and Neptune (as seen by the Voyager spacecraft). Credit NASA/JPL. ...
... astronauts); the Moon and then Mars (captured from ground-based telescopes); and Jupiter, Saturn, Uranus and Neptune (as seen by the Voyager spacecraft). Credit NASA/JPL. ...
Ellipses, Parallax, and Retrograde Motion
... 8. The greater the eccentricity, the more _________ the ellipse. Circular or oval? 9. Kepler’s 1st Law: All planets orbit in ____________(shape). 10. Kepler’s 2nd Law: The closer a planet is to the sun, the _________ it moves. 11. Kepler’s 3rd Law: The closer a planet is to the sun, the _________ it ...
... 8. The greater the eccentricity, the more _________ the ellipse. Circular or oval? 9. Kepler’s 1st Law: All planets orbit in ____________(shape). 10. Kepler’s 2nd Law: The closer a planet is to the sun, the _________ it moves. 11. Kepler’s 3rd Law: The closer a planet is to the sun, the _________ it ...
Return both exam and scantron sheet when you
... (b) False. 19. Chandrasekhar’s limit is (a) the maximum radius of a red giant. (b) the radius within which an object must shrink to become a black hole. (c) the maximum mass of a body composed of degenerate matter. (d) the minimum mass of a body composed of degenerate matter. 20. The maximum mass th ...
... (b) False. 19. Chandrasekhar’s limit is (a) the maximum radius of a red giant. (b) the radius within which an object must shrink to become a black hole. (c) the maximum mass of a body composed of degenerate matter. (d) the minimum mass of a body composed of degenerate matter. 20. The maximum mass th ...
ph709-15
... Small planets between the sizes of Earth and Neptune substantially outnumber Jupiter-sized planets. Super-Earths with orbital periods less than 100 days are extremely abundant around Sun-like stars. It is unlikely that these planets formed at their current locations. Rather, they likely formed at la ...
... Small planets between the sizes of Earth and Neptune substantially outnumber Jupiter-sized planets. Super-Earths with orbital periods less than 100 days are extremely abundant around Sun-like stars. It is unlikely that these planets formed at their current locations. Rather, they likely formed at la ...
Jupiter
... naked eye. Just outside the main ring is the broad and exceedingly faint "Gossamer" ring, which extends out beyond the orbit of the moon Amalthea. It is probably composed of dust particles less than 10 microns in diameter about the size of cigarette smoke particles. It extends to an outer edge of ab ...
... naked eye. Just outside the main ring is the broad and exceedingly faint "Gossamer" ring, which extends out beyond the orbit of the moon Amalthea. It is probably composed of dust particles less than 10 microns in diameter about the size of cigarette smoke particles. It extends to an outer edge of ab ...
- BIO Web of Conferences
... performed using remote sensing observations, nor with the in-situ instruments presently available on planetary landers or rovers. Another diagnostic can be used for (exo)planetary exploration: the measurement of isotopic ratios. In the case of carbon, the 12C/13C ratio can bring information about th ...
... performed using remote sensing observations, nor with the in-situ instruments presently available on planetary landers or rovers. Another diagnostic can be used for (exo)planetary exploration: the measurement of isotopic ratios. In the case of carbon, the 12C/13C ratio can bring information about th ...
Lecture 2
... • What was so mysterious about planetary motion in our sky? – Like the Sun and Moon, planets usually drift eastward relative to the stars from night to night; but sometimes, for a few weeks or few months, a planet turns westward in its apparent retrograde motion ...
... • What was so mysterious about planetary motion in our sky? – Like the Sun and Moon, planets usually drift eastward relative to the stars from night to night; but sometimes, for a few weeks or few months, a planet turns westward in its apparent retrograde motion ...
The Roots of Astronomy
... of the Universe/Solar System was needed to explain Retrograde Motion. • Ptolemy suggests that planets orbit the Earth in a large circular orbits but also follow a small circular orbit around an imaginary point. • These small orbits were known as Epicycles ...
... of the Universe/Solar System was needed to explain Retrograde Motion. • Ptolemy suggests that planets orbit the Earth in a large circular orbits but also follow a small circular orbit around an imaginary point. • These small orbits were known as Epicycles ...
PHYS 2421 EXAM #5 Wednesday, November 11
... 98. To alleviate the traffic congestion between two cities such as Boston and Washington, D.C., engineers have proposed building a rail tunnel along a chord line connecting the cities (Fig. 13-55). A train, unpropelled by any engine and starting from rest, would fall through the first half of the tu ...
... 98. To alleviate the traffic congestion between two cities such as Boston and Washington, D.C., engineers have proposed building a rail tunnel along a chord line connecting the cities (Fig. 13-55). A train, unpropelled by any engine and starting from rest, would fall through the first half of the tu ...
For Chapter 16
... • Much of the incoming solar radiation does not make it to the Earth’s surface – due to atmospheric absorption • Electromagnetic radiation that will pass through the Earth’s atmosphere can be studied using ground-based detectors • Other regions of the electromagnetic spectrum must be detected by spa ...
... • Much of the incoming solar radiation does not make it to the Earth’s surface – due to atmospheric absorption • Electromagnetic radiation that will pass through the Earth’s atmosphere can be studied using ground-based detectors • Other regions of the electromagnetic spectrum must be detected by spa ...
FREE Sample Here
... A. East to west motion of the Sun over many successive nights. B. East to west motion of the Moon relative to the stars over many successive nights. C. Occasional east to west motion of the planets relative to the stars over many successive nights. D. Occasional west to east motion of the planets re ...
... A. East to west motion of the Sun over many successive nights. B. East to west motion of the Moon relative to the stars over many successive nights. C. Occasional east to west motion of the planets relative to the stars over many successive nights. D. Occasional west to east motion of the planets re ...
FREE Sample Here
... A. East to west motion of the Sun over many successive nights. B. East to west motion of the Moon relative to the stars over many successive nights. C. Occasional east to west motion of the planets relative to the stars over many successive nights. D. Occasional west to east motion of the planets re ...
... A. East to west motion of the Sun over many successive nights. B. East to west motion of the Moon relative to the stars over many successive nights. C. Occasional east to west motion of the planets relative to the stars over many successive nights. D. Occasional west to east motion of the planets re ...
Star and Planet Formation - Homepages of UvA/FNWI staff
... 1. If the Earth rotates around the Sun, birds should actually stay behind because of the movement of the Earth on its orbit. 2. If the Earth rotates around its axis (as required to explain day and night), things should fly off the spinning planet. 3. If the Earth rotates around the Sun, we should ob ...
... 1. If the Earth rotates around the Sun, birds should actually stay behind because of the movement of the Earth on its orbit. 2. If the Earth rotates around its axis (as required to explain day and night), things should fly off the spinning planet. 3. If the Earth rotates around the Sun, we should ob ...
Space Quiz for CPS
... 15. Why does the flag on the moon never wave or get wet? A. It only rains on the other side of the moon. B. The sun dries up the rain that goes towards the moon before it ever gets to the moon. C. The moon does not have an atmosphere. D. There is no rain on the moon....but there is wind. ...
... 15. Why does the flag on the moon never wave or get wet? A. It only rains on the other side of the moon. B. The sun dries up the rain that goes towards the moon before it ever gets to the moon. C. The moon does not have an atmosphere. D. There is no rain on the moon....but there is wind. ...
Jumping on Another Planet!
... of matter that a body contains. It never varies despite the gravitational field in which it’s found. Even in zero gravity, mass is always present and is felt as inertia (resistance to change). Weight, on the other hand, measures the force exerted on a body placed within a given gravitational field. ...
... of matter that a body contains. It never varies despite the gravitational field in which it’s found. Even in zero gravity, mass is always present and is felt as inertia (resistance to change). Weight, on the other hand, measures the force exerted on a body placed within a given gravitational field. ...
Friday Feb 25th, 2000
... • If Moon is closer to Earth (perigee) = bigger shadow and longer eclipse; total eclipse • If Moon is further from Earth (apogee) = umbra does not reach earth surface = ...
... • If Moon is closer to Earth (perigee) = bigger shadow and longer eclipse; total eclipse • If Moon is further from Earth (apogee) = umbra does not reach earth surface = ...
Related Handout - Orange County Astronomers
... Saturn mass is 95 times greater than Earth’s, its equatorial diameter is 72,600 miles, and it circles the Sun in 29.5 years at an average distance of 9.5 AU. The number of its moons, at last count, exceeds 20. Several of them are visible in amateur scopes. Titan, the largest moon of the solar system ...
... Saturn mass is 95 times greater than Earth’s, its equatorial diameter is 72,600 miles, and it circles the Sun in 29.5 years at an average distance of 9.5 AU. The number of its moons, at last count, exceeds 20. Several of them are visible in amateur scopes. Titan, the largest moon of the solar system ...
Space - Logan Petlak
... • Why are most planets closer to the sun rocky? Why are some more gaseous further away from the sun? ...
... • Why are most planets closer to the sun rocky? Why are some more gaseous further away from the sun? ...
Gravity Kepler`s Laws - historical remarks - UW
... – All planets move in elliptical orbits with the sun at one focus ...
... – All planets move in elliptical orbits with the sun at one focus ...
Samenvatting ANW SPU set 3 Chapter 2: The Earth What are
... - The Sun is the most prominent feature in our solar system, it is the largest object and contains approximately 98% of the total solar system mass - The Earth could fit 1,3 times into the Earth - The temperature of the Sun’s outer layer is 6,000 degrees The equation E=mc2 The formula expresses the ...
... - The Sun is the most prominent feature in our solar system, it is the largest object and contains approximately 98% of the total solar system mass - The Earth could fit 1,3 times into the Earth - The temperature of the Sun’s outer layer is 6,000 degrees The equation E=mc2 The formula expresses the ...
Satellite system (astronomy)
A satellite system is a set of gravitationally bound objects in orbit around a planetary mass object or minor planet. Generally speaking, it is a set of natural satellites (moons), although such systems may also consist of bodies such as circumplanetary disks, ring systems, moonlets, minor-planet moons and artificial satellites any of which may themselves have satellite systems of their own. Some satellite systems have complex interactions with both their parent and other moons, including magnetic, tidal, atmospheric and orbital interactions such as orbital resonances and libration. Individually major satellite objects are designated in Roman numerals. Satellite systems are referred to either by the possessive adjectives of their primary (e.g. ""Jovian system""), or less commonly by the name of their primary (e.g. ""Jupiter system""). Where only one satellite is known, or it is a binary orbiting a common centre of gravity, it may be referred to using the hyphenated names of the primary and major satellite (e.g. the ""Earth-Moon system"").Many Solar System objects are known to possess satellite systems, though their origin is still unclear. Notable examples include the largest satellite system, the Jovian system, with 67 known moons (including the large Galilean moons) and the Saturnian System with 62 known moons (and the most visible ring system in the Solar System). Both satellite systems are large and diverse. In fact all of the giant planets of the Solar System possess large satellite systems as well as planetary rings, and it is inferred that this is a general pattern. Several objects farther from the Sun also have satellite systems consisting of multiple moons, including the complex Plutonian system where multiple objects orbit a common center of mass, as well as many asteroids and plutinos. Apart from the Earth-Moon system and Mars' system of two tiny natural satellites, the other terrestrial planets are generally not considered satellite systems, although some have been orbited by artificial satellites originating from Earth.Little is known of satellite systems beyond the Solar System, although it is inferred that natural satellites are common. J1407b is an example of an extrasolar satellite system. It is also theorised that Rogue planets ejected from their planetary system could retain a system of satellites.