
SOLAR SYSTEM OVERVIEW - Ms. Ferebee`s Webpage
... The inner planets: Mercury, Venus, Earth, and Mars. Mercury is closest to the Sun and Mars is the most distant of these rocky planets. Earth is the only place in the solar system or the universe known to have life. This is because Earth has liquid water, oxygen and a protective atmosphere. ...
... The inner planets: Mercury, Venus, Earth, and Mars. Mercury is closest to the Sun and Mars is the most distant of these rocky planets. Earth is the only place in the solar system or the universe known to have life. This is because Earth has liquid water, oxygen and a protective atmosphere. ...
PowerPoint
... Planet Comparisons • Mercury, Venus, Earth, and Mars are crowded close to the Sun. • The four large planets– Jupiter, Saturn, Uranus, and Neptune– are widely spaced • Pluto tends to be in unusual space • Mostly circular orbits, except Mercury and Pluto • Orbits all lie in a plane • Size varies cons ...
... Planet Comparisons • Mercury, Venus, Earth, and Mars are crowded close to the Sun. • The four large planets– Jupiter, Saturn, Uranus, and Neptune– are widely spaced • Pluto tends to be in unusual space • Mostly circular orbits, except Mercury and Pluto • Orbits all lie in a plane • Size varies cons ...
Wide-eyed Telescope Finds its First Transiting
... At an international conference today at the Max Planck Institute for Astronomy in Heidelberg, a team of astronomers from the UK, the Canary Islands, France and Switzerland will announce the discovery of two new planets orbiting around other stars. (The conference talk by Dr. Rachel Street is schedul ...
... At an international conference today at the Max Planck Institute for Astronomy in Heidelberg, a team of astronomers from the UK, the Canary Islands, France and Switzerland will announce the discovery of two new planets orbiting around other stars. (The conference talk by Dr. Rachel Street is schedul ...
Wide-eyed Telescope Finds its First Transiting
... At an international conference today at the Max Planck Institute for Astronomy in Heidelberg, a team of astronomers from the UK, the Canary Islands, France and Switzerland will announce the discovery of two new planets orbiting around other stars. (The conference talk by Dr. Rachel Street is schedul ...
... At an international conference today at the Max Planck Institute for Astronomy in Heidelberg, a team of astronomers from the UK, the Canary Islands, France and Switzerland will announce the discovery of two new planets orbiting around other stars. (The conference talk by Dr. Rachel Street is schedul ...
PLANETS
... transit the disk of their parent stars, allowing for a determination of planetary radii. SELECTION: Of course, while planets close to their parent stars will preferentially be found, due to their shorter orbital periods and greater likelihood to transit, planetary transits will be detected at all or ...
... transit the disk of their parent stars, allowing for a determination of planetary radii. SELECTION: Of course, while planets close to their parent stars will preferentially be found, due to their shorter orbital periods and greater likelihood to transit, planetary transits will be detected at all or ...
The solar system
... So the solar system is not simple at all. The difficulties are numerous: - the number of interacting bodies is both big and unclearly defined. Even if asteroids are unknown and all the planets not yet discovered, how many are involved? - initial conditions are unclear. However, the problem is not ho ...
... So the solar system is not simple at all. The difficulties are numerous: - the number of interacting bodies is both big and unclearly defined. Even if asteroids are unknown and all the planets not yet discovered, how many are involved? - initial conditions are unclear. However, the problem is not ho ...
Gravitatio
... allowed extremely accurate predictions of planetary orbits. Cavendish measured gravitational forces between human-scale objects before 1800. ...
... allowed extremely accurate predictions of planetary orbits. Cavendish measured gravitational forces between human-scale objects before 1800. ...
New Worlds on the Horizon: Earth-Sized Planets Close to Other
... not sufficient to find a “twin” to the Earth-Sun system, but it is enough to detect somewhat more massive planets on closer orbits. Earth-mass planets could be detected around the lowest-mass (M dwarf) stars, whose motion will be more affected by an unseen companion. M dwarfs are numerous, and plane ...
... not sufficient to find a “twin” to the Earth-Sun system, but it is enough to detect somewhat more massive planets on closer orbits. Earth-mass planets could be detected around the lowest-mass (M dwarf) stars, whose motion will be more affected by an unseen companion. M dwarfs are numerous, and plane ...
Chapter 1 Periods of Western Astronomy Prehistoric Astronomy
... of east and sets north of west • In winter months of Northern hemisphere, the Sun rises south of east and sets south of west • The solstices (about June 21 and December 21) are when the Sun rises at the most extreme north and south points • The equinoxes (equal day and night and about March 21 and S ...
... of east and sets north of west • In winter months of Northern hemisphere, the Sun rises south of east and sets south of west • The solstices (about June 21 and December 21) are when the Sun rises at the most extreme north and south points • The equinoxes (equal day and night and about March 21 and S ...
Week 2 - Our Solar System
... The sun is only one of billions of stars in the Milky Way galaxy. Although it appears very large from Earth, the sun is a medium-sized star. Many stars are much larger. In this lesson, you will learn about other stars. At night, we can see between 3,000 and 5,000 stars. With a high-powered telescope ...
... The sun is only one of billions of stars in the Milky Way galaxy. Although it appears very large from Earth, the sun is a medium-sized star. Many stars are much larger. In this lesson, you will learn about other stars. At night, we can see between 3,000 and 5,000 stars. With a high-powered telescope ...
1 3 Formation of the Solar System
... observed the sky to keep track of time. However, they studied Earth’s place in the universe in a new way. They used logic and mathematics, especially geometry. The Greek philosopher Aristotle made a model of the solar system in order to explain the phases of the moon and eclipses. His model was geoc ...
... observed the sky to keep track of time. However, they studied Earth’s place in the universe in a new way. They used logic and mathematics, especially geometry. The Greek philosopher Aristotle made a model of the solar system in order to explain the phases of the moon and eclipses. His model was geoc ...
Lecture 5: Planetary system formation theories o Topics to be covered:
... Very massive stars are rare and distant. o Probability of massive star coming close to another star is therefore very low. o Sun’s nearest companion is Proxima Centauri (d =1.3 pc => Rsun=/d ~2x10-8). ...
... Very massive stars are rare and distant. o Probability of massive star coming close to another star is therefore very low. o Sun’s nearest companion is Proxima Centauri (d =1.3 pc => Rsun=/d ~2x10-8). ...
Practice test - astronomy
... A. We are closer to the sun. B. The air becomes thicker and more dense. C. The sun’s rays are more direct and days are longer. D. The ratio of the hours of daylight to the hours of night is reduced. ...
... A. We are closer to the sun. B. The air becomes thicker and more dense. C. The sun’s rays are more direct and days are longer. D. The ratio of the hours of daylight to the hours of night is reduced. ...
Astronomy 111 Overview of the Solar system
... ❑ The planets and the Sun always lie in a narrow band across the sky: the zodiac. This is a plane, seen edge on. ❑ Distant stars that lie in the direction of the zodiac exhibit narrow features in their spectrum that shift back and forth in wavelength by ±0.01% with periods of one year. No such shift ...
... ❑ The planets and the Sun always lie in a narrow band across the sky: the zodiac. This is a plane, seen edge on. ❑ Distant stars that lie in the direction of the zodiac exhibit narrow features in their spectrum that shift back and forth in wavelength by ±0.01% with periods of one year. No such shift ...
Neptune & Uranus Notes
... predicted position and where they actually observed it The logical conclusion was that an unknown body must be exerting a gravitational force on Uranus Astronomers realized that there had to be another planet in the solar system perturbing Uranus’s motion ...
... predicted position and where they actually observed it The logical conclusion was that an unknown body must be exerting a gravitational force on Uranus Astronomers realized that there had to be another planet in the solar system perturbing Uranus’s motion ...
22 circ motion gravitation fr File
... Two stars each of mass M form a binary star system such that both stars move in the same circular orbit of radius R. The universal gravitational constant is G. a. Use Newton's laws of motion and gravitation to find an expression for the speed v of either star in terms of R, G, and M. ...
... Two stars each of mass M form a binary star system such that both stars move in the same circular orbit of radius R. The universal gravitational constant is G. a. Use Newton's laws of motion and gravitation to find an expression for the speed v of either star in terms of R, G, and M. ...
Refuges for Life in a - University of Arizona
... has been a huge breakthrough: the discovery of giant, Jupitersize planets around sunlike stars. Not every sunlike star has such a planet. In fact, the giant planets discovered to date are primarily found around stars that are rich in chemical elements heavier than helium— what astronomers call “meta ...
... has been a huge breakthrough: the discovery of giant, Jupitersize planets around sunlike stars. Not every sunlike star has such a planet. In fact, the giant planets discovered to date are primarily found around stars that are rich in chemical elements heavier than helium— what astronomers call “meta ...
Robotics - UNL CSE
... modeling can be used to determine the planet’s features. These features include temperature, magnitude of gravity, the air/atmosphere/oxygen level, soil content, and climate. When you model a planet on a computer, you need to consider human needs to survive on a planet. Food is an obvious human need ...
... modeling can be used to determine the planet’s features. These features include temperature, magnitude of gravity, the air/atmosphere/oxygen level, soil content, and climate. When you model a planet on a computer, you need to consider human needs to survive on a planet. Food is an obvious human need ...
SOLAR SYSTEM BRACELET/ANKLET
... the planet, they change the bead to use! Comment 2) from Catherine Gray, Discovery Center, Sacramento: Bead colors for the Solar System Bracelet/Anklet project can be chosen to represent specific facts about the solar system. I do a different bead project using pony beads. I use opaque beads of vari ...
... the planet, they change the bead to use! Comment 2) from Catherine Gray, Discovery Center, Sacramento: Bead colors for the Solar System Bracelet/Anklet project can be chosen to represent specific facts about the solar system. I do a different bead project using pony beads. I use opaque beads of vari ...
tremaine_lecture_1
... all forces acting in nature, as well as the momentary positions of all things of which the universe consists, would be able to comprehend the motions of the largest bodies of the world and those of the smallest atoms in one single formula, provided it were sufficiently powerful to subject all data t ...
... all forces acting in nature, as well as the momentary positions of all things of which the universe consists, would be able to comprehend the motions of the largest bodies of the world and those of the smallest atoms in one single formula, provided it were sufficiently powerful to subject all data t ...
TRANSIT
... to date, an exoplanet with a radius only 50% larger than the Earth and possibly having liquid water on its surface. Using the ESO 3.6m telescope, a team of Swiss, French, and Portuguese scientists discovered a super-Earth about 5 times the mass of the Earth that orbits a red dwarf, already known to ...
... to date, an exoplanet with a radius only 50% larger than the Earth and possibly having liquid water on its surface. Using the ESO 3.6m telescope, a team of Swiss, French, and Portuguese scientists discovered a super-Earth about 5 times the mass of the Earth that orbits a red dwarf, already known to ...
Planets in orbit around planetesimal belts? ββββββββ
... flared structure of the outer disk is akin to the structure of the outer Kuiper Belt where the planetesimal disk is flared up from the ecliptic plane. Lecavelier des Etangs (1998) pointed out that the vertical structure of the β Pic disk might have resulted from the outward migration of multiple gia ...
... flared structure of the outer disk is akin to the structure of the outer Kuiper Belt where the planetesimal disk is flared up from the ecliptic plane. Lecavelier des Etangs (1998) pointed out that the vertical structure of the β Pic disk might have resulted from the outward migration of multiple gia ...
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.