Celestial Motions
... parallax could mean one of two things: 1. Stars are so far away that stellar parallax is too small to notice with the naked eye 2. Earth does not orbit Sun; it is the center of the universe With rare exceptions such as Aristarchus, the Greeks rejected the correct explanation (1) because they did not ...
... parallax could mean one of two things: 1. Stars are so far away that stellar parallax is too small to notice with the naked eye 2. Earth does not orbit Sun; it is the center of the universe With rare exceptions such as Aristarchus, the Greeks rejected the correct explanation (1) because they did not ...
SWFAS Sept 2016 Newsletter - Southwest Florida Astronomical
... 1930 – February 4, 2016) (Captain, USN) was an American naval officer and aviator, test pilot, aeronautical engineer, and NASA astronaut. As the Lunar Module Pilot of Apollo 14, he spent nine hours working on the lunar surface in the Fra Mauro Highlands region, making him the sixth person to walk on ...
... 1930 – February 4, 2016) (Captain, USN) was an American naval officer and aviator, test pilot, aeronautical engineer, and NASA astronaut. As the Lunar Module Pilot of Apollo 14, he spent nine hours working on the lunar surface in the Fra Mauro Highlands region, making him the sixth person to walk on ...
scale_moon
... Do you know what the phases of the moon are? Does the moon look the same every night? (different shapes that the moon takes on at night) What causes the phases? (write these ideas down on the board – probably will say things like earth’s shadow, clouds, etc.) Have all kids stand around in a circle a ...
... Do you know what the phases of the moon are? Does the moon look the same every night? (different shapes that the moon takes on at night) What causes the phases? (write these ideas down on the board – probably will say things like earth’s shadow, clouds, etc.) Have all kids stand around in a circle a ...
The Solar Sytem (Story Book)
... the Sun that would be harmful to life. Earth’s atmosphere distinguishes it from the planet Venus, which is otherwise much like Earth. Venus is about the same size and mass as Earth and is also neither too near nor too far from the Sun. But because Venus has too much heat-trapping carbon dioxide in i ...
... the Sun that would be harmful to life. Earth’s atmosphere distinguishes it from the planet Venus, which is otherwise much like Earth. Venus is about the same size and mass as Earth and is also neither too near nor too far from the Sun. But because Venus has too much heat-trapping carbon dioxide in i ...
Our Universe SPA-4101
... members of a small cluster of galaxies called the Local Group whose largest members are Andromeda, the Milky Way and The Pinwheel ...
... members of a small cluster of galaxies called the Local Group whose largest members are Andromeda, the Milky Way and The Pinwheel ...
Lecture 20: Formation of Planets, Exoplanets 3/30
... • over millions of years sweep out most smaller objects as collide with larger objects existing planets • only ~circular orbits won’t collide any further (asteroid belt between Mars and Jupiter) • Possible motion of planets to/from star may be critical PHYS 162 ...
... • over millions of years sweep out most smaller objects as collide with larger objects existing planets • only ~circular orbits won’t collide any further (asteroid belt between Mars and Jupiter) • Possible motion of planets to/from star may be critical PHYS 162 ...
Title of Lesson Sequence: “The Earth`s Seasons”
... Darken the room and have students focus on the globe and the light apparatus. When the Earth is in position #1, have them look at the top of the Earth. There is a line beyond which the sun does not shine. This special latitude is called the Arctic Circle, and is special because when it is winter in ...
... Darken the room and have students focus on the globe and the light apparatus. When the Earth is in position #1, have them look at the top of the Earth. There is a line beyond which the sun does not shine. This special latitude is called the Arctic Circle, and is special because when it is winter in ...
7.4 – Universal Gravitation
... The moon’s shadow during a solar eclipse is called the umbra, and it is a very dark, cone-shaped part which blocks the suns completely. During this time on Earth, people within the umbra experience a total solar eclipse and the sky is as black as night. Stars are visible in this total solar eclipse ...
... The moon’s shadow during a solar eclipse is called the umbra, and it is a very dark, cone-shaped part which blocks the suns completely. During this time on Earth, people within the umbra experience a total solar eclipse and the sky is as black as night. Stars are visible in this total solar eclipse ...
Summer 2011 Newsletter
... more carefully what a planet is. You see, there are all sorts of things orbiting around the sun – planets, asteroids of myriad sizes, comets, and other space debris. These different objects have different characteristics and, therefore, different names. After a lot of discussion, scientists agreed t ...
... more carefully what a planet is. You see, there are all sorts of things orbiting around the sun – planets, asteroids of myriad sizes, comets, and other space debris. These different objects have different characteristics and, therefore, different names. After a lot of discussion, scientists agreed t ...
Coronal Mass Ejections, Flares, and the Solar Wind
... material from the solar atmosphere into interplanetary space. These eruptions are known as coronal mass ejections, or CMEs. A large CME can contain 10.0E16 grams (a billion tons) of matter that can be accelerated to several million miles per hour in a spectacular explosion. Solar material streaks ou ...
... material from the solar atmosphere into interplanetary space. These eruptions are known as coronal mass ejections, or CMEs. A large CME can contain 10.0E16 grams (a billion tons) of matter that can be accelerated to several million miles per hour in a spectacular explosion. Solar material streaks ou ...
Light of Distant Stars - Glasgow Science Centre
... searching for extrasolar planets, and, despite it having revealed a number of planets, it’s actually the worst way of doing it. Ask the group to discuss why they think this is a particularly poor way of searching for planets. Hopefully someone will hit along the idea that the probability of a planet ...
... searching for extrasolar planets, and, despite it having revealed a number of planets, it’s actually the worst way of doing it. Ask the group to discuss why they think this is a particularly poor way of searching for planets. Hopefully someone will hit along the idea that the probability of a planet ...
Intrusive Activity
... enter the newly formed fissures. B. Magma can also cause blocks of rock to break off and sink into the magma, where the rocks may eventually melt. C. Magma can melt the rock into which it intrudes. ...
... enter the newly formed fissures. B. Magma can also cause blocks of rock to break off and sink into the magma, where the rocks may eventually melt. C. Magma can melt the rock into which it intrudes. ...
Jovian Planets - Valhalla High School
... the solar nebula allowed condensing bodies there to capture hydrogen and hydrogen-rich gases This together with the vast amount of material in the outer Solar System lead to the creation of the four large Jovian planets – Jupiter, Saturn, Uranus, and Neptune Composed mainly of gaseous and liquid ...
... the solar nebula allowed condensing bodies there to capture hydrogen and hydrogen-rich gases This together with the vast amount of material in the outer Solar System lead to the creation of the four large Jovian planets – Jupiter, Saturn, Uranus, and Neptune Composed mainly of gaseous and liquid ...
October 30, 2008 Chapter 8 The Terrestrial Planets Terrestrial
... • Low mass Mercury and Mars will have a smaller source of age than Venus/Earth and the low surface gravity of these small planets also means they will have trouble retaining the gases they receive • Mars, Venus, and Earth all probably started with CO2 atmospheres with traces of N2 and H2O, but were ...
... • Low mass Mercury and Mars will have a smaller source of age than Venus/Earth and the low surface gravity of these small planets also means they will have trouble retaining the gases they receive • Mars, Venus, and Earth all probably started with CO2 atmospheres with traces of N2 and H2O, but were ...
ppt
... • In the 16th century, the Polish astronomer Nicolaus Copernicus replaced the traditional Earth-centered view of planetary motion with one in which the Sun is at the center and the planets move around it in circles. • Although the Copernican model came quite close to correctly predicting planetary m ...
... • In the 16th century, the Polish astronomer Nicolaus Copernicus replaced the traditional Earth-centered view of planetary motion with one in which the Sun is at the center and the planets move around it in circles. • Although the Copernican model came quite close to correctly predicting planetary m ...
Astro101 lecture from Aug 27
... Kinesthetic Astronomy: Key Point for Seasons Although Earth orbits the Sun, the direction of its spin axis*does not change* during the year as it orbits. 1. One person will represent the Sun. Please come up and stand in the middle of the stage. 2. The rest of us will be Earth. Let’s orbit (walk aro ...
... Kinesthetic Astronomy: Key Point for Seasons Although Earth orbits the Sun, the direction of its spin axis*does not change* during the year as it orbits. 1. One person will represent the Sun. Please come up and stand in the middle of the stage. 2. The rest of us will be Earth. Let’s orbit (walk aro ...
Scale Model Solar System (with Pluto)
... Scale Model Solar System (with Pluto) Supplemental Teaching Activity (6th-8th) Montana Space Public Outreach Team ...
... Scale Model Solar System (with Pluto) Supplemental Teaching Activity (6th-8th) Montana Space Public Outreach Team ...
26.9 news and views feature mx
... the mass of Mercury, the smallest of the planets known before 1800 and itself less than 6% of the mass of the Earth. This realization, together with the discovery of many minor planets beyond Neptune during the past decade (the largest of which may be bigger than Ceres), has led astronomers to quest ...
... the mass of Mercury, the smallest of the planets known before 1800 and itself less than 6% of the mass of the Earth. This realization, together with the discovery of many minor planets beyond Neptune during the past decade (the largest of which may be bigger than Ceres), has led astronomers to quest ...
ssp1_6
... exactly in the ratio 1:2:4. This leads to resonant effects : The orbit of Io is perturbed by Europa and Callisto, because the moons regularly line up on one side of Jupiter. The gravitational pull of the outer moons is enough to produce a small eccentricity in the orbit of Io. This causes the tidal ...
... exactly in the ratio 1:2:4. This leads to resonant effects : The orbit of Io is perturbed by Europa and Callisto, because the moons regularly line up on one side of Jupiter. The gravitational pull of the outer moons is enough to produce a small eccentricity in the orbit of Io. This causes the tidal ...
Anomalous diffusion in generalised Ornstein
... Because the Kepler rotation rate decreases with radius, there is a velocity gradient. If there are viscous forces acting, they cause a torque which speeds up material at higher radius, and slows material at smaller radius. Angular momentum is transferred from the centre to the outside of the disc. A ...
... Because the Kepler rotation rate decreases with radius, there is a velocity gradient. If there are viscous forces acting, they cause a torque which speeds up material at higher radius, and slows material at smaller radius. Angular momentum is transferred from the centre to the outside of the disc. A ...
Habitable worlds with JWST: transit spectroscopy of the TRAPPIST
... for the lower temperature ones. As well as just increasing the size of the planet, increasing the radius also increases the scale height as the gravity is slightly reduced. The a priori abundance of O3 is set to be 10−8 × the present-day Earth value. This value is low enough such that no O3 features ...
... for the lower temperature ones. As well as just increasing the size of the planet, increasing the radius also increases the scale height as the gravity is slightly reduced. The a priori abundance of O3 is set to be 10−8 × the present-day Earth value. This value is low enough such that no O3 features ...
What is a Planet?
... of planet formation: A planet is a body that has swept up or scattered most of the mass from its orbital zone in the accretion disk around a central star or substar. In this paper I propose an observational criterion to quantify this definition. The end product of secondary disk accretion is a small ...
... of planet formation: A planet is a body that has swept up or scattered most of the mass from its orbital zone in the accretion disk around a central star or substar. In this paper I propose an observational criterion to quantify this definition. The end product of secondary disk accretion is a small ...
The Earth and Moon
... HOW DOES THE MOON MOVE? • It takes about 29.5 days for the moon to make 1 revolution around the Earth. • The moon has a synchronous rotation with the Earth. • Synchronous Rotation- the Earth and moon rotate in the same direction at the same pace. • That’s why we only see one side of the moon at nig ...
... HOW DOES THE MOON MOVE? • It takes about 29.5 days for the moon to make 1 revolution around the Earth. • The moon has a synchronous rotation with the Earth. • Synchronous Rotation- the Earth and moon rotate in the same direction at the same pace. • That’s why we only see one side of the moon at nig ...
Late Heavy Bombardment
The Late Heavy Bombardment (abbreviated LHB and also known as the lunar cataclysm) is a hypothetical event thought to have occurred approximately 4.1 to 3.8 billion years (Ga) ago, corresponding to the Neohadean and Eoarchean eras on Earth. During this interval, a disproportionately large number of asteroids apparently collided with the early terrestrial planets in the inner Solar System, including Mercury, Venus, Earth, and Mars. The LHB happened after the Earth and other rocky planets had formed and accreted most of their mass, but still quite early in Earth's history.Evidence for the LHB derives from lunar samples brought back by the Apollo astronauts. Isotopic dating of Moon rocks implies that most impact melts occurred in a rather narrow interval of time. Several hypotheses are now offered to explain the apparent spike in the flux of impactors (i.e. asteroids and comets) in the inner Solar System, but no consensus yet exists. The Nice model is popular among planetary scientists; it postulates that the gas giant planets underwent orbital migration and scattered objects in the asteroid and/or Kuiper belts into eccentric orbits, and thereby into the path of the terrestrial planets. Other researchers argue that the lunar sample data do not require a cataclysmic cratering event near 3.9 Ga, and that the apparent clustering of impact melt ages near this time is an artifact of sampling materials retrieved from a single large impact basin. They also note that the rate of impact cratering could be significantly different between the outer and inner zones of the Solar System.