Astronomy 1400 – 001: Solar System Astronomy
... ➡ How does the energy flux depend on temperature? ➡ Stephan-Boltzmann Law: the excess energy flux is ...
... ➡ How does the energy flux depend on temperature? ➡ Stephan-Boltzmann Law: the excess energy flux is ...
The search for exoplanets
... On April 17th 2014 NASA’s Kepler-telescope discovered the first Earth-size planet Kepler186f in a habitable zone, which is also accompanied by four other planets. It orbits its star (a red dwarf) once every 130 days and receives one-third of the energy that the earth gets from the sun. Not much is k ...
... On April 17th 2014 NASA’s Kepler-telescope discovered the first Earth-size planet Kepler186f in a habitable zone, which is also accompanied by four other planets. It orbits its star (a red dwarf) once every 130 days and receives one-third of the energy that the earth gets from the sun. Not much is k ...
Day_39
... Most of the extrasolar planets discovered to date are quite massive and have orbits that are very different from planets in our solar system ...
... Most of the extrasolar planets discovered to date are quite massive and have orbits that are very different from planets in our solar system ...
Orbit inclined 17º from Ecliptic, with a high eccentricity
... • May be 35,000 TNOs larger than D=100 km. >1200 known. Probably many more smaller ones. Smallest found has R about 1 km. ...
... • May be 35,000 TNOs larger than D=100 km. >1200 known. Probably many more smaller ones. Smallest found has R about 1 km. ...
Lesson 1 For students of Geography, 2 course. Subject: THE SOLAR
... of the telescope in Hilland, Galileo built one of his own and was able to add four new bodies to the system: the brighter of the moons (or satellites) that revolve around Jupiter. Since Galileo’s time telescopic improvements have made possible the discovery of many more members of the sun’s family. ...
... of the telescope in Hilland, Galileo built one of his own and was able to add four new bodies to the system: the brighter of the moons (or satellites) that revolve around Jupiter. Since Galileo’s time telescopic improvements have made possible the discovery of many more members of the sun’s family. ...
Small Bodies of the Solar System
... Ceres (the largest known asteroid) was discovered by Giuseppe Piazzi • By the end of the 19th C., several hundred were known • We now know of more than 7000 ...
... Ceres (the largest known asteroid) was discovered by Giuseppe Piazzi • By the end of the 19th C., several hundred were known • We now know of more than 7000 ...
Small Bodies of the Solar System - Astronomy
... Ceres (the largest known asteroid) was discovered by Giuseppe Piazzi • By the end of the 19th C., several hundred were known • We now know of more than 7000 ...
... Ceres (the largest known asteroid) was discovered by Giuseppe Piazzi • By the end of the 19th C., several hundred were known • We now know of more than 7000 ...
Events: - Temecula Valley Astronomers
... deviations in Uranus and Neptune orbits. Within a month of its discovery, the new planet was named Pluto. From then on, Pluto’s estimated size and mass shrank every year. When I was discovering astronomy in the mid-1950s, one of my books pegged Pluto’s diameter as somewhere between the diameters of ...
... deviations in Uranus and Neptune orbits. Within a month of its discovery, the new planet was named Pluto. From then on, Pluto’s estimated size and mass shrank every year. When I was discovering astronomy in the mid-1950s, one of my books pegged Pluto’s diameter as somewhere between the diameters of ...
Elements and Isotopes - University of California, Berkeley
... The temperature and pressure in the core are extreme enough for fusion (and the Sun’s gravity keeps them that way). Most energy is produced in the inner 20%. Convection carries the energy in the outer 30%. Most of the mass is in the inner 50% because the density is much higher. ...
... The temperature and pressure in the core are extreme enough for fusion (and the Sun’s gravity keeps them that way). Most energy is produced in the inner 20%. Convection carries the energy in the outer 30%. Most of the mass is in the inner 50% because the density is much higher. ...
source - UC Berkeley Astronomy w
... the vicinity of a planet, they are captured by the magnetic field and funneled towards the poles (where the field lines originate). Eventually they hit the atmosphere and knock electrons from atoms; when these recombine the air emits emission lines that are visible as aurorae. Shepherd Moons – Gener ...
... the vicinity of a planet, they are captured by the magnetic field and funneled towards the poles (where the field lines originate). Eventually they hit the atmosphere and knock electrons from atoms; when these recombine the air emits emission lines that are visible as aurorae. Shepherd Moons – Gener ...
Astronomy 12 Final Review Sheet Sun
... the vicinity of a planet, they are captured by the magnetic field and funneled towards the poles (where the field lines originate). Eventually they hit the atmosphere and knock electrons from atoms; when these recombine the air emits emission lines that are visible as aurorae. Shepherd Moons – Gener ...
... the vicinity of a planet, they are captured by the magnetic field and funneled towards the poles (where the field lines originate). Eventually they hit the atmosphere and knock electrons from atoms; when these recombine the air emits emission lines that are visible as aurorae. Shepherd Moons – Gener ...
Slide 1
... nearly pure iron. Still others contain substantial amounts of carbon. • Surface: Pock-marked. Asteroids are covered with impact craters from collisions with smaller asteroids. • Temperature: Asteroid temperatures vary a lot depending on how fast they spin and whether you measure the side facing the ...
... nearly pure iron. Still others contain substantial amounts of carbon. • Surface: Pock-marked. Asteroids are covered with impact craters from collisions with smaller asteroids. • Temperature: Asteroid temperatures vary a lot depending on how fast they spin and whether you measure the side facing the ...
Kepler`s Second Law
... the transit would allow the distance from the Sun to the Earth to be calculated accurately. Weather conditions and other factors meant errors were made, but when the future transits occurred, the distance was calculated more accurately. Once the distance of one planet was accurately known, Kepler’s ...
... the transit would allow the distance from the Sun to the Earth to be calculated accurately. Weather conditions and other factors meant errors were made, but when the future transits occurred, the distance was calculated more accurately. Once the distance of one planet was accurately known, Kepler’s ...
Solar System Unit Plan
... student choosing four of the planets on their model and telling the class why they made each planet look the way it does (essentially describing a visual characteristic of 4 planets). However, students may use any medium they choose and the projects may be 2 or 3 ...
... student choosing four of the planets on their model and telling the class why they made each planet look the way it does (essentially describing a visual characteristic of 4 planets). However, students may use any medium they choose and the projects may be 2 or 3 ...
Mercury - alexanderscience8
... What IS a Planet? As of 2006, a planet is defined by three criteria: 1) It is a celestial body that orbits the Sun. 2) It is massive enough that its own gravity causes it to form a spherical shape. 3) It has cleared the neighborhood around its orbit. Under this definition our solar system has eight ...
... What IS a Planet? As of 2006, a planet is defined by three criteria: 1) It is a celestial body that orbits the Sun. 2) It is massive enough that its own gravity causes it to form a spherical shape. 3) It has cleared the neighborhood around its orbit. Under this definition our solar system has eight ...
Chapter 1: A Universe of Life
... 12. Planets orbiting around stars other than our Sun are known as A) extraterrestrial planets B) astroplanets C) extrasolar planets D) stellar planets ...
... 12. Planets orbiting around stars other than our Sun are known as A) extraterrestrial planets B) astroplanets C) extrasolar planets D) stellar planets ...
Useful Things to Study (#2)
... Fraction of mass that is converted to energy via E = mc2 for proton-proton cycle in main sequence stars. the nature of (electron) neutrinos that come from the Sun How do we know that sunspots are cooler than the rest of the photosphere? Magnetic fields in the Sun Cause of the aurora borealis/austral ...
... Fraction of mass that is converted to energy via E = mc2 for proton-proton cycle in main sequence stars. the nature of (electron) neutrinos that come from the Sun How do we know that sunspots are cooler than the rest of the photosphere? Magnetic fields in the Sun Cause of the aurora borealis/austral ...
Vagabonds of the Universe
... apparent means of support, wander… • These objects do have fixed homes…. ...
... apparent means of support, wander… • These objects do have fixed homes…. ...
here - Next Wave
... advancing at a breakneck pace. In less than a decade we may well know whether we’re the cosmos’ first and only living progeny, or if there are others. Since the 1990s, we have known what we had long suspected: our solar system is not unique. There are other worlds—more than 700 at last count—shuttli ...
... advancing at a breakneck pace. In less than a decade we may well know whether we’re the cosmos’ first and only living progeny, or if there are others. Since the 1990s, we have known what we had long suspected: our solar system is not unique. There are other worlds—more than 700 at last count—shuttli ...
Lecture
... interior pressure -> may not be high-pressure enough to make hydrogen into a liquid metal. ...
... interior pressure -> may not be high-pressure enough to make hydrogen into a liquid metal. ...
Definition of planet
The definition of planet, since the word was coined by the ancient Greeks, has included within its scope a wide range of celestial bodies. Greek astronomers employed the term asteres planetai (ἀστέρες πλανῆται), ""wandering stars"", for star-like objects which apparently moved over the sky. Over the millennia, the term has included a variety of different objects, from the Sun and the Moon to satellites and asteroids.By the end of the 19th century the word planet, though it had yet to be defined, had become a working term applied only to a small set of objects in the Solar System. After 1992, however, astronomers began to discover many additional objects beyond the orbit of Neptune, as well as hundreds of objects orbiting other stars. These discoveries not only increased the number of potential planets, but also expanded their variety and peculiarity. Some were nearly large enough to be stars, while others were smaller than Earth's moon. These discoveries challenged long-perceived notions of what a planet could be.The issue of a clear definition for planet came to a head in 2005 with the discovery of the trans-Neptunian object Eris, a body more massive than the smallest then-accepted planet, Pluto. In its 2006 response, the International Astronomical Union (IAU), recognised by astronomers as the world body responsible for resolving issues of nomenclature, released its decision on the matter. This definition, which applies only to the Solar System, states that a planet is a body that orbits the Sun, is massive enough for its own gravity to make it round, and has ""cleared its neighbourhood"" of smaller objects around its orbit. Under this new definition, Pluto and the other trans-Neptunian objects do not qualify as planets. The IAU's decision has not resolved all controversies, and while many scientists have accepted the definition, some in the astronomical community have rejected it outright.