A rocky planet transiting a nearby low-mass star
... irradiation than GJ 1132b. Whether the atmosphere of GJ 1132b was initially dominated by hydrogen/helium-rich gas accreted from the primordial nebula or by volatiles outgassed from the planetary interior, its composition probably evolved substantially over the age of the system, which we estimate to ...
... irradiation than GJ 1132b. Whether the atmosphere of GJ 1132b was initially dominated by hydrogen/helium-rich gas accreted from the primordial nebula or by volatiles outgassed from the planetary interior, its composition probably evolved substantially over the age of the system, which we estimate to ...
Ethan Kessinger and Amanda Brockbank
... notice that the speed of light is far greater than the speed of sound and was the first to realize acceleration is connected to non-uniform motion, which is a part of Newton’s second law. He also was the first to observe that movement and friction cause heat. Applying this to the world, he hypothesi ...
... notice that the speed of light is far greater than the speed of sound and was the first to realize acceleration is connected to non-uniform motion, which is a part of Newton’s second law. He also was the first to observe that movement and friction cause heat. Applying this to the world, he hypothesi ...
Lec21_2D
... Properties of Carbon-Dioxide CO2 has two interesting properties: CO2 dissolves into liquid water (H2O) to create H2CO3 (carbonic acid). Carbonic acid (i.e., the fizz in soda) then reacts with any number of minerals. For instance H2CO3 + Ca H2 + CaCO3 (limestone) The result is that, if liquid wa ...
... Properties of Carbon-Dioxide CO2 has two interesting properties: CO2 dissolves into liquid water (H2O) to create H2CO3 (carbonic acid). Carbonic acid (i.e., the fizz in soda) then reacts with any number of minerals. For instance H2CO3 + Ca H2 + CaCO3 (limestone) The result is that, if liquid wa ...
Spectroscopy, the Doppler Shift and Masses of Binary Stars
... The stars on the left are separated by 2.3 about 140 AU; those on the right by 2.6 . The two pairs are separated by about 208 (13,000 AU separation, 0.16 ly between the two pairs, all about 162 ly distant). Each pair would be about as bright as the quarter moon viewed from the other. ...
... The stars on the left are separated by 2.3 about 140 AU; those on the right by 2.6 . The two pairs are separated by about 208 (13,000 AU separation, 0.16 ly between the two pairs, all about 162 ly distant). Each pair would be about as bright as the quarter moon viewed from the other. ...
Chapter 10 - Relativity Group
... • Radioactive material in chondrules allows dating back to when they first condensed from the solar nebula • Some chondrules contain ancient dust grains that have survived from before the Solar System’s birth! ...
... • Radioactive material in chondrules allows dating back to when they first condensed from the solar nebula • Some chondrules contain ancient dust grains that have survived from before the Solar System’s birth! ...
Chapter 02
... Earth is 1.7% closer to sun in the northern winter than in the northern summer. Earth’s orbit (eccentricity greatly exaggerated) ...
... Earth is 1.7% closer to sun in the northern winter than in the northern summer. Earth’s orbit (eccentricity greatly exaggerated) ...
ASTRO-114--Lecture 26-
... 100,000.” But actually, most of that 40,000 has been discovered in the last ten years. Ten or fifteen years ago I would’ve been saying, “We know about 7,000 or 8,000 asteroids.” But during the last 10 years, astronomers have made significant progress in discovering more and more asteroids. And the r ...
... 100,000.” But actually, most of that 40,000 has been discovered in the last ten years. Ten or fifteen years ago I would’ve been saying, “We know about 7,000 or 8,000 asteroids.” But during the last 10 years, astronomers have made significant progress in discovering more and more asteroids. And the r ...
Easy Science no 98
... Draw a horizontal and a vertical line across the middle of the poster paper. Write the directions north, south, east and west on the paper as shown. Use the modelling clay to make the pencil stand up at the spot where the two lines cross. You have now made a Sun tracker. On a sunny day, go out early ...
... Draw a horizontal and a vertical line across the middle of the poster paper. Write the directions north, south, east and west on the paper as shown. Use the modelling clay to make the pencil stand up at the spot where the two lines cross. You have now made a Sun tracker. On a sunny day, go out early ...
doc - University of Texas Astronomy
... Using the known period and the primary star’s orbital speed from the radial velocity, get sum of masses, and hence mass of invisible companion: about 10Mo must be black hole (assuming theoretical calculation of neutron star/black hole mass limit is ok). 2. Hot x-ray emitting gas is observed flowin ...
... Using the known period and the primary star’s orbital speed from the radial velocity, get sum of masses, and hence mass of invisible companion: about 10Mo must be black hole (assuming theoretical calculation of neutron star/black hole mass limit is ok). 2. Hot x-ray emitting gas is observed flowin ...
Setting the Stage for Habitable Planets
... It is important to clearly define what we mean by the term “habitable planet”. Some will object that the word “planet” is too restrictive. In principle, a habitable environment might be located on a non-planetary body. Perhaps the term “habitable body” would be preferred, which could include such po ...
... It is important to clearly define what we mean by the term “habitable planet”. Some will object that the word “planet” is too restrictive. In principle, a habitable environment might be located on a non-planetary body. Perhaps the term “habitable body” would be preferred, which could include such po ...
No Slide Title
... Jupiter and Saturn are at the perfect distance to: leave our sensitive orbit alone, but protect us from nasty, earthbound comets and asteroids... ...
... Jupiter and Saturn are at the perfect distance to: leave our sensitive orbit alone, but protect us from nasty, earthbound comets and asteroids... ...
Astronomy Webquest Part 1: Life of Stars: Go to http://www.odec.ca
... 4. The Sun is a _____________ ______________ star. Which line would you expect most of the main sequence stars to be found? _________________________________________________________. Click on right arrow. 5. Use the main sequence line to help fill in the next statement. The ____________________ star ...
... 4. The Sun is a _____________ ______________ star. Which line would you expect most of the main sequence stars to be found? _________________________________________________________. Click on right arrow. 5. Use the main sequence line to help fill in the next statement. The ____________________ star ...
Your Guide to the Universe
... 10% helium gas; it does not have a solid surface – thus not qualifying to be called a terrestrial planet as the first four planets are. However, in its centre these gases are compressed to a very hot liquid called metallic hydrogen. Due to its 12 year long orbit around the Sun and its fast rotation, ...
... 10% helium gas; it does not have a solid surface – thus not qualifying to be called a terrestrial planet as the first four planets are. However, in its centre these gases are compressed to a very hot liquid called metallic hydrogen. Due to its 12 year long orbit around the Sun and its fast rotation, ...
Activities, In the Footsteps of Galileo
... Objective: Discover that the band of the Milky Way is primarily composed of an uncountable number of very faint stars. Activity: Pick one of the brighter sections of the Milky Way’s band and draw its star field as seen through the telescope. There may be too many stars to draw! Pick another area of ...
... Objective: Discover that the band of the Milky Way is primarily composed of an uncountable number of very faint stars. Activity: Pick one of the brighter sections of the Milky Way’s band and draw its star field as seen through the telescope. There may be too many stars to draw! Pick another area of ...
Thinking About Gravity
... larger object will attract the smaller object towards it more strongly. 9. How does the distance of two objects from each other affect the gravitational pull? The greater the distance between two objects, the lower the gravitational pull between them. When two objects are closer to each other, there ...
... larger object will attract the smaller object towards it more strongly. 9. How does the distance of two objects from each other affect the gravitational pull? The greater the distance between two objects, the lower the gravitational pull between them. When two objects are closer to each other, there ...
ASTR 340 - TerpConnect
... At the same time another Greek Aristarchos from the Greek island of Samos proposed the first heliocentric model, i.e. a model where all the planets rotate about the Sun. His motivation came from the results of an ingenious method for measuring the relative distances of the Moon and Sun (see problem ...
... At the same time another Greek Aristarchos from the Greek island of Samos proposed the first heliocentric model, i.e. a model where all the planets rotate about the Sun. His motivation came from the results of an ingenious method for measuring the relative distances of the Moon and Sun (see problem ...
The Final Flight of Atlantis - Westchester Amateur Astronomers
... Venus in our evening sky. Mars is slowly making its way into the constellation of Virgo where it will have a close encounter with Saturn at month’s end. The two planets are about the same brightness (anywhere between +1.0 and +1.5 magnitude) and will come within about 1° of each other on the 30th of ...
... Venus in our evening sky. Mars is slowly making its way into the constellation of Virgo where it will have a close encounter with Saturn at month’s end. The two planets are about the same brightness (anywhere between +1.0 and +1.5 magnitude) and will come within about 1° of each other on the 30th of ...
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... closely matching names of planets. The country of origin of that is probably ancient Babylon, where astronomy was highly developed. Five planets inherited from Babylon and Egypt by Greece, then by Romans and finally by our civilization, stayed with us for long years, as long as 15th century. That is ...
... closely matching names of planets. The country of origin of that is probably ancient Babylon, where astronomy was highly developed. Five planets inherited from Babylon and Egypt by Greece, then by Romans and finally by our civilization, stayed with us for long years, as long as 15th century. That is ...
Planetary Formation - Scholarly Commons @ Ouachita
... was made of water ice, dry ice and frozen ammonia and methane. All of the dust particles in the solar nebula, both near to and ...
... was made of water ice, dry ice and frozen ammonia and methane. All of the dust particles in the solar nebula, both near to and ...
Chapter 27 - Rocklin High School
... density but a diameter that is 11 times Earth’s diameter. Uranus and Neptune are different from Jupiter and Saturn, and are sometimes called ice giants. ...
... density but a diameter that is 11 times Earth’s diameter. Uranus and Neptune are different from Jupiter and Saturn, and are sometimes called ice giants. ...
Test yourself on the crossword! Increase your knowledge
... This is because it is such a large planet (the gravitational force a planet exerts upon an object at the planet's surface is proportional to its mass and to the inverse of its radius squared). 9) The gravity on Uranus is only 91% of the gravity on Earth because it is such a large planet- gravity in ...
... This is because it is such a large planet (the gravitational force a planet exerts upon an object at the planet's surface is proportional to its mass and to the inverse of its radius squared). 9) The gravity on Uranus is only 91% of the gravity on Earth because it is such a large planet- gravity in ...
From the Everett and Seattle Astronomical
... Mercury is the closest planet to our Sun, and the least explored of the socalled terrestrial planets, which are the four rocky inner planets that also include Venus, Earth, and Mars. Other than 3 flybys by Mariner 10 in 1974 and ’75, no other spacecraft have yet explored the first rock from the Sun. ...
... Mercury is the closest planet to our Sun, and the least explored of the socalled terrestrial planets, which are the four rocky inner planets that also include Venus, Earth, and Mars. Other than 3 flybys by Mariner 10 in 1974 and ’75, no other spacecraft have yet explored the first rock from the Sun. ...
1” “Sky-Notes” of the Open University Astronomy Club. June 2005. A
... The waxing (evening) and waning (morning) crescent Moon is well placed for observation from the northern hemisphere observers. Observe along or near to the terminator where long shadows show greater detail of the Moon’s topography. Use a basic “Moonmap” to familiarize yourself with the major feature ...
... The waxing (evening) and waning (morning) crescent Moon is well placed for observation from the northern hemisphere observers. Observe along or near to the terminator where long shadows show greater detail of the Moon’s topography. Use a basic “Moonmap” to familiarize yourself with the major feature ...
Climate Change
... Closure: Planetary Temperatures 1. What determined the temperature of your planets? 2. Did your planets come to an equilibrium temperature? What is happening at that temperature? 3. If your sun got hotter, would the temperature change? How? 4. If your planet got farther away, would the temperature ...
... Closure: Planetary Temperatures 1. What determined the temperature of your planets? 2. Did your planets come to an equilibrium temperature? What is happening at that temperature? 3. If your sun got hotter, would the temperature change? How? 4. If your planet got farther away, would the temperature ...
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.