A Tour of our Solar System
... mostly of dust and rocks the size of a baseball or smaller. There has been a lot of study done to understand why they exist. The jury is still out, but there are ideas about gravity and Saturn’s magnetic field. ...
... mostly of dust and rocks the size of a baseball or smaller. There has been a lot of study done to understand why they exist. The jury is still out, but there are ideas about gravity and Saturn’s magnetic field. ...
The Universe, Solar System, and Planets I
... the sun. One reason why Pluto is declassified as a planet is because asteroids has been detected in our solar system that are as large or larger than Pluto. Stricter rules are now in place as to what can be called a planet. Pluto did not meet all the new requirements to be labeled as one. Some astro ...
... the sun. One reason why Pluto is declassified as a planet is because asteroids has been detected in our solar system that are as large or larger than Pluto. Stricter rules are now in place as to what can be called a planet. Pluto did not meet all the new requirements to be labeled as one. Some astro ...
The Solar System
... – Between the orbits of Mars and Jupiter there is an Asteroid belt that some think was formed by the breakup of a larger planet. ...
... – Between the orbits of Mars and Jupiter there is an Asteroid belt that some think was formed by the breakup of a larger planet. ...
What Is a Planet?
... a distinct population. If we still counted asteroids as planets, schoolchildren studying the solar system would now have to cope with more than 135,000 planets. Pluto has a similar story. When Clyde Tombaugh discovered it in 1930, astronomers welcomed Pluto as the long-sought “Planet X” whose gravit ...
... a distinct population. If we still counted asteroids as planets, schoolchildren studying the solar system would now have to cope with more than 135,000 planets. Pluto has a similar story. When Clyde Tombaugh discovered it in 1930, astronomers welcomed Pluto as the long-sought “Planet X” whose gravit ...
Name: ____ Date: __________ Period: ________ Pluto Files (PBS
... of a planet? Why does Pluto not fit this description? How long was Pluto considered a planet and what year did it all change and why? International Astronomical Union (IAU)---they are in charge of naming celestial (space) objects Current definition: o A planet needs to be round and orbit the Sun ...
... of a planet? Why does Pluto not fit this description? How long was Pluto considered a planet and what year did it all change and why? International Astronomical Union (IAU)---they are in charge of naming celestial (space) objects Current definition: o A planet needs to be round and orbit the Sun ...
The Solar System and its Planets
... Which part of the IAU definition of a dwarf planet does asteroid Vesta not satisfy? (A) is in orbit around the Sun (B) has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape (C) has not cleared the neighbourhood aroun ...
... Which part of the IAU definition of a dwarf planet does asteroid Vesta not satisfy? (A) is in orbit around the Sun (B) has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape (C) has not cleared the neighbourhood aroun ...
True or False: If the statement is true, write “True”, if it is “False” tell
... _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ __________________________________________ ...
... _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ __________________________________________ ...
5th Grade Astronomy Test Study Guide
... comets and asteroids to the sun. 1. The inner planet, Mars, is separated from the outer planet, Jupiter, by an asteroid belt. 2. Pluto, Ceres, and Eris are dwarf planets. 3. A comet is a ball of ice and dust that produces a long tail as it nears a star. 4. Name the planets and planetary objects in o ...
... comets and asteroids to the sun. 1. The inner planet, Mars, is separated from the outer planet, Jupiter, by an asteroid belt. 2. Pluto, Ceres, and Eris are dwarf planets. 3. A comet is a ball of ice and dust that produces a long tail as it nears a star. 4. Name the planets and planetary objects in o ...
instructor notes: week 2
... They will not “fall” to Earth if their transverse speed is large enough. ...
... They will not “fall” to Earth if their transverse speed is large enough. ...
2/1/2012- Outer Planets Notes
... • Neptune is the eighth planet from the Sun. • Neptune’s atmosphere is similar to that of Uranus, but has a little more methane—about 3 percent—causing it to look bluer. ...
... • Neptune is the eighth planet from the Sun. • Neptune’s atmosphere is similar to that of Uranus, but has a little more methane—about 3 percent—causing it to look bluer. ...
Formation of the Solar System
... Small, rocky, abundant in metals, few moons Jovian planets (Jupiter, Saturn, Uranus, Neptune) Large, gaseous (made of hydrogen and its compounds), no solid surfaces, have rings, a lot of moons (made of low-density ices and rocks) Explain: Why is the inner and outer Solar system divided so neatly? ...
... Small, rocky, abundant in metals, few moons Jovian planets (Jupiter, Saturn, Uranus, Neptune) Large, gaseous (made of hydrogen and its compounds), no solid surfaces, have rings, a lot of moons (made of low-density ices and rocks) Explain: Why is the inner and outer Solar system divided so neatly? ...
The surface temperature of a planet
... The energy from a star of luminosity L at a distance d incident on a planet of radius r is πr2 Estar−planet = L 4πd2 However, not all of the stellar energy that is incident with a planet reaches the planet’s surface. A fraction α (often A) of the energy is reflected directly back into space (mainly ...
... The energy from a star of luminosity L at a distance d incident on a planet of radius r is πr2 Estar−planet = L 4πd2 However, not all of the stellar energy that is incident with a planet reaches the planet’s surface. A fraction α (often A) of the energy is reflected directly back into space (mainly ...
Worldly Wise 3000
... just as we do today. But those who looked carefully noticed something more. They saw that most stars seemed fixed in place but that some moved slowly across the night sky. Now we know that the moving objects are not stars at all. They are the planets that rotate around the sun. About five billion ye ...
... just as we do today. But those who looked carefully noticed something more. They saw that most stars seemed fixed in place but that some moved slowly across the night sky. Now we know that the moving objects are not stars at all. They are the planets that rotate around the sun. About five billion ye ...
30 Week CCA Study Guide
... 6. What is an asteroid? An asteroid is a small rocky body orbiting the sun. Large numbers of these, ranging in size from nearly 600 miles (1,000 km) across (Ceres) to dust particles, are found (as the asteroid belt ) especially between the orbits of Mars and Jupiter, though some have more eccentric ...
... 6. What is an asteroid? An asteroid is a small rocky body orbiting the sun. Large numbers of these, ranging in size from nearly 600 miles (1,000 km) across (Ceres) to dust particles, are found (as the asteroid belt ) especially between the orbits of Mars and Jupiter, though some have more eccentric ...
Week 30 CCA - Net Start Class
... 6. What is an asteroid? An asteroid is a small rocky body orbiting the sun. Large numbers of these, ranging in size from nearly 600 miles (1,000 km) across (Ceres) to dust particles, are found (as the asteroid belt ) especially between the orbits of Mars and Jupiter, though some have more eccentric ...
... 6. What is an asteroid? An asteroid is a small rocky body orbiting the sun. Large numbers of these, ranging in size from nearly 600 miles (1,000 km) across (Ceres) to dust particles, are found (as the asteroid belt ) especially between the orbits of Mars and Jupiter, though some have more eccentric ...
Newton`s Laws of Motion
... Key Ideas (1) the tendency of an object to maintain a constant velocity, (2) the relationship between the net outside force on an object and the object’s acceleration, and (3) the principle of action and reaction. These laws and Newton’s law of universal gravitation can be used to deduce Kepler ...
... Key Ideas (1) the tendency of an object to maintain a constant velocity, (2) the relationship between the net outside force on an object and the object’s acceleration, and (3) the principle of action and reaction. These laws and Newton’s law of universal gravitation can be used to deduce Kepler ...
The astronauts in the upper left of this photo are working on the
... (II) A typical white-dwarf star, which once was an average star like our Sun but is now in the last stage of its evolution, is the size of our Moon but has the mass of our Sun. What is the surface gravity on this star? ...
... (II) A typical white-dwarf star, which once was an average star like our Sun but is now in the last stage of its evolution, is the size of our Moon but has the mass of our Sun. What is the surface gravity on this star? ...
Neptune Project
... Neptune has fourteen known moons. The largest by far, including more than 99.5% of the mass in the orbit around Neptune, and the only one massive enough to be spheroidal, is Triton. Triton is close enough to Neptune to have become locked into a synchronous rotation. Storms have been spotted swirling ...
... Neptune has fourteen known moons. The largest by far, including more than 99.5% of the mass in the orbit around Neptune, and the only one massive enough to be spheroidal, is Triton. Triton is close enough to Neptune to have become locked into a synchronous rotation. Storms have been spotted swirling ...
Introduction Worksheet 1
... A satellite circles a newly discovered planet in our solar system once every 98 minutes at mean orbital radius of 6.88 x 106 m. From this motion, calculate: a) the mass of the planet. b) the centripetal acceleration acting on the satellite. ...
... A satellite circles a newly discovered planet in our solar system once every 98 minutes at mean orbital radius of 6.88 x 106 m. From this motion, calculate: a) the mass of the planet. b) the centripetal acceleration acting on the satellite. ...
Name: Date: Meteorology and Space Science Semester I 2016
... Apparent shift in movement due to orbital motion of Earth. ...
... Apparent shift in movement due to orbital motion of Earth. ...
Where Are We Going?
... Sun. What do you notice about the sizes of the orbits? Compare the orbits near the Sun with those farther away from the Sun. If you were the commander of a spacebus that traveled among the planets, would you rather travel between the Inner Planets (Mercury, Venus, Earth, Mars) or the Outer Planets ( ...
... Sun. What do you notice about the sizes of the orbits? Compare the orbits near the Sun with those farther away from the Sun. If you were the commander of a spacebus that traveled among the planets, would you rather travel between the Inner Planets (Mercury, Venus, Earth, Mars) or the Outer Planets ( ...
Hinsdale Astro TEST
... 14. Is this a young star or an old star? Image H 15. Give the proper name of this substellar brown dwarf. 16. What type of radiation does this type of object mainly emit? ...
... 14. Is this a young star or an old star? Image H 15. Give the proper name of this substellar brown dwarf. 16. What type of radiation does this type of object mainly emit? ...
Planets beyond Neptune
Following the discovery of the planet Neptune in 1846, there was considerable speculation that another planet might exist beyond its orbit. The search began in the mid-19th century and culminated at the start of the 20th with Percival Lowell's quest for Planet X. Lowell proposed the Planet X hypothesis to explain apparent discrepancies in the orbits of the giant planets, particularly Uranus and Neptune, speculating that the gravity of a large unseen ninth planet could have perturbed Uranus enough to account for the irregularities.Clyde Tombaugh's discovery of Pluto in 1930 appeared to validate Lowell's hypothesis, and Pluto was officially named the ninth planet. In 1978, Pluto was conclusively determined to be too small for its gravity to affect the giant planets, resulting in a brief search for a tenth planet. The search was largely abandoned in the early 1990s, when a study of measurements made by the Voyager 2 spacecraft found that the irregularities observed in Uranus's orbit were due to a slight overestimation of Neptune's mass. After 1992, the discovery of numerous small icy objects with similar or even wider orbits than Pluto led to a debate over whether Pluto should remain a planet, or whether it and its neighbours should, like the asteroids, be given their own separate classification. Although a number of the larger members of this group were initially described as planets, in 2006 the International Astronomical Union reclassified Pluto and its largest neighbours as dwarf planets, leaving Neptune the farthest known planet in the Solar System.Today, the astronomical community widely agrees that Planet X, as originally envisioned, does not exist, but the concept of Planet X has been revived by a number of astronomers to explain other anomalies observed in the outer Solar System. In popular culture, and even among some astronomers, Planet X has become a stand-in term for any undiscovered planet in the outer Solar System, regardless of its relationship to Lowell's hypothesis. Other trans-Neptunian planets have also been suggested, based on different evidence. As of March 2014, observations with the WISE telescope have ruled out the possibility of a Saturn-sized object out to 10,000 AU, and a Jupiter-sized or larger object out to 26,000 AU.