Planetary system formation in thermally evolving viscous
... Planetary orbital eccentricity can strongly influence Lindblad migration torques [25] and eccentricity/inclination damping rates of embedded planets [26]. In a recent study, Bitsch & Kley [18] showed that corotation torques decrease significantly with modest growth of eccentricity. We present here a b ...
... Planetary orbital eccentricity can strongly influence Lindblad migration torques [25] and eccentricity/inclination damping rates of embedded planets [26]. In a recent study, Bitsch & Kley [18] showed that corotation torques decrease significantly with modest growth of eccentricity. We present here a b ...
THE CHANGING SKY
... → These buttons allow you to change the time of your observation. → E : Enter any time and date. → 1 , 5 , 10 : Advance time by 1, 5, or 10 minutes (left mouse button = forward in time, right mouse button = backward in time). → H , D , W , M , Y : Advance time by one hour, day, week, month, year (le ...
... → These buttons allow you to change the time of your observation. → E : Enter any time and date. → 1 , 5 , 10 : Advance time by 1, 5, or 10 minutes (left mouse button = forward in time, right mouse button = backward in time). → H , D , W , M , Y : Advance time by one hour, day, week, month, year (le ...
EARTH SCIENCE REGENTS REVIEW
... * A geocentric model of the solar system has the Earth at the center, with planets, moon, and sun revolving around it in circular orbits (this was the first model of the solar system) * A heliocentric model of the solar system has the Sun at the center, with planets moving around it, and the moon mo ...
... * A geocentric model of the solar system has the Earth at the center, with planets, moon, and sun revolving around it in circular orbits (this was the first model of the solar system) * A heliocentric model of the solar system has the Sun at the center, with planets moving around it, and the moon mo ...
New Moons for Pluto!
... mission, astronomers used the Hubble telescope in May 2005 to hunt for moons in Pluto’s vast outer region. Many other telescopes had studied the region close to Pluto, but none had found anything interesting. To the surprise of astronomers, the Hubble snapshots revealed two objects close to Pluto th ...
... mission, astronomers used the Hubble telescope in May 2005 to hunt for moons in Pluto’s vast outer region. Many other telescopes had studied the region close to Pluto, but none had found anything interesting. To the surprise of astronomers, the Hubble snapshots revealed two objects close to Pluto th ...
L3-January 15/08
... Ancient Greek Astronomy Aristarchus of Samos Measured the relative distances of the Moon and Sun and found the Sun was 18-20 times further away then the Moon Determined relative sizes of Earth, Moon, and Sun from lunar eclipse data (Moon diameter= 1/3 × Earth, Sun diameter = 7 × Earth) ...
... Ancient Greek Astronomy Aristarchus of Samos Measured the relative distances of the Moon and Sun and found the Sun was 18-20 times further away then the Moon Determined relative sizes of Earth, Moon, and Sun from lunar eclipse data (Moon diameter= 1/3 × Earth, Sun diameter = 7 × Earth) ...
![David`s Mapping the Heavens[1]](http://s1.studyres.com/store/data/008084229_1-877ead4b57cbb51d927fdcd6d06ce5c8-300x300.png)
David`s Mapping the Heavens[1]
... • How can this be used to measure the distance to a Cepheid variable star? • Measure the period of the star and calculate the luminosity based on this. • Measure the observed brightness of the star • From the luminosity and the observed brightness the distance to the star can be calculated. ...
... • How can this be used to measure the distance to a Cepheid variable star? • Measure the period of the star and calculate the luminosity based on this. • Measure the observed brightness of the star • From the luminosity and the observed brightness the distance to the star can be calculated. ...
The Moon and Beyond
... amount of Luna 16 material obtained from the Russians (about 3 grams-the weight of ten aspirin tablets) yielded an impressive amount of information. Scientists discovered that the surface of Mare Fecunditatis was covered by titanium-poor basalt lavas about 3.4 billion years old. The lavas were simi ...
... amount of Luna 16 material obtained from the Russians (about 3 grams-the weight of ten aspirin tablets) yielded an impressive amount of information. Scientists discovered that the surface of Mare Fecunditatis was covered by titanium-poor basalt lavas about 3.4 billion years old. The lavas were simi ...
OuR SOlAR SyStem
... A journey through the Solar System The year 2009 was proclaimed the International Year of Astronomy to commemorate a defining moment in history. It was exactly 400 years before that Galileo Galilei had turned his telescope to the sky for the first time – and what he discovered was truly revolutionar ...
... A journey through the Solar System The year 2009 was proclaimed the International Year of Astronomy to commemorate a defining moment in history. It was exactly 400 years before that Galileo Galilei had turned his telescope to the sky for the first time – and what he discovered was truly revolutionar ...
Historical astronomy How Johannes Kepler Johannes
... Working while suffering religious persecution and financial hardship, Kepler was part mystic and part modern scientist. Despite constant battles with illness and fever, and tragedies that claimed the lives of his first wife and several of his children, Kepler kept up his quest for harmony. In 1618, ...
... Working while suffering religious persecution and financial hardship, Kepler was part mystic and part modern scientist. Despite constant battles with illness and fever, and tragedies that claimed the lives of his first wife and several of his children, Kepler kept up his quest for harmony. In 1618, ...
Timing of the formation and migration of giant planets as constrained
... (protoplanetary disk that contains the minimum amount of solids that are necessary to build the planets of the solar system, ~0.01 mass of the Sun) between 0.7 and 3.0 astronomical units (AU; 1 AU is the mean distance from the center of Earth to the center of the Sun) with a gas density that decays ...
... (protoplanetary disk that contains the minimum amount of solids that are necessary to build the planets of the solar system, ~0.01 mass of the Sun) between 0.7 and 3.0 astronomical units (AU; 1 AU is the mean distance from the center of Earth to the center of the Sun) with a gas density that decays ...
Astronomy Part 1 Regents Questions
... toward the ultraviolet end of the spectrum and the star is moving toward Earth. B) The star’s spectral lines have shifted toward the ultraviolet end of the spectrum and the star is moving away from Earth. C) The star’s spectral lines have shifted toward the infrared end of the spectrum and the star ...
... toward the ultraviolet end of the spectrum and the star is moving toward Earth. B) The star’s spectral lines have shifted toward the ultraviolet end of the spectrum and the star is moving away from Earth. C) The star’s spectral lines have shifted toward the infrared end of the spectrum and the star ...
Stars and Constellations
... have higher apparent magnitudes than more distant ones. The sun, for example, has the largest apparent magnitude (-26.73) of any other star in the universe. The actual brightness of a star is called its absolute magnitude. Unlike apparent magnitude, absolute magnitude does not consider distance. It ...
... have higher apparent magnitudes than more distant ones. The sun, for example, has the largest apparent magnitude (-26.73) of any other star in the universe. The actual brightness of a star is called its absolute magnitude. Unlike apparent magnitude, absolute magnitude does not consider distance. It ...
ASTRO-114--Lecture 28-
... those gaps are regions that Jupiter has cleared out, even far away from Jupiter. And the reason is that at those particular positions, such as two and a half astronomical units, t hat is exactly the place where asteroids would have one-third of the orbit period of Jupiter. That means that an asteroi ...
... those gaps are regions that Jupiter has cleared out, even far away from Jupiter. And the reason is that at those particular positions, such as two and a half astronomical units, t hat is exactly the place where asteroids would have one-third of the orbit period of Jupiter. That means that an asteroi ...
TCPDF Example 039 - Viking Art Glass
... shows the top view of this 5.5 inch Crystal Etched Jumbo! It is almost impossible to photograph the etching on these mushrooms. For now I am running the best photo I have. There will be more information added as it come to my attention. Viking used etching similar to the European Zodiac Signs from t ...
... shows the top view of this 5.5 inch Crystal Etched Jumbo! It is almost impossible to photograph the etching on these mushrooms. For now I am running the best photo I have. There will be more information added as it come to my attention. Viking used etching similar to the European Zodiac Signs from t ...
Star Formation - Leslie Looney
... •! But if H2 can stick to the dust grains, shouldn’t larger molecules stick too? In fact, we see water (H2O), ammonia (NH3), methane (CH4), and methanol (CH3OH) frozen to the dust grains. •! Hey, that’s the most important bioelements (H, O, N, and C) on dust grains! •! Mayo Greenberg and co-workers ...
... •! But if H2 can stick to the dust grains, shouldn’t larger molecules stick too? In fact, we see water (H2O), ammonia (NH3), methane (CH4), and methanol (CH3OH) frozen to the dust grains. •! Hey, that’s the most important bioelements (H, O, N, and C) on dust grains! •! Mayo Greenberg and co-workers ...
Universe 8e Lecture Chapter 14 Uranus, Neptune, Pluto
... Satellites of Uranus and Neptune: Uranus has five satellites similar to the moderate-sized moons of Saturn, plus at least 22 more small satellites. Neptune has 13 satellites, one of which (Triton) is comparable in size to our Moon or the Galilean satellites of Jupiter. Triton has a young, icy surfac ...
... Satellites of Uranus and Neptune: Uranus has five satellites similar to the moderate-sized moons of Saturn, plus at least 22 more small satellites. Neptune has 13 satellites, one of which (Triton) is comparable in size to our Moon or the Galilean satellites of Jupiter. Triton has a young, icy surfac ...
Lab 2 - TCNJ
... Standard (clock) Time, you would normally need to apply a longitude correction. This correction is determined by the relationship between the longitude of your sundial and the longitude of the central meridian of our time zone. What is the central meridian of the Eastern U.S. time zone? _________ (h ...
... Standard (clock) Time, you would normally need to apply a longitude correction. This correction is determined by the relationship between the longitude of your sundial and the longitude of the central meridian of our time zone. What is the central meridian of the Eastern U.S. time zone? _________ (h ...
learning goals - Pearson Education
... Many ancient cultures built structures to help them mark the seasons. One of the oldest standing human-made structures served such a purpose: Stonehenge in southern England, which was constructed in stages from about 2750 B.C. to about 1550 B.C. (Figure 3.3). Observers standing in its center see the ...
... Many ancient cultures built structures to help them mark the seasons. One of the oldest standing human-made structures served such a purpose: Stonehenge in southern England, which was constructed in stages from about 2750 B.C. to about 1550 B.C. (Figure 3.3). Observers standing in its center see the ...
Last time: looked at proton-proton chain to convert Hydrogen into
... Eventually the dust and debris in the protoplanetary disk is cleared out, potentially leaving planets & other debris behind. The star is no longer adding mass and has landed on the main sequence, where it will sit for most of its lifetime, until it runs out of fuel… ...
... Eventually the dust and debris in the protoplanetary disk is cleared out, potentially leaving planets & other debris behind. The star is no longer adding mass and has landed on the main sequence, where it will sit for most of its lifetime, until it runs out of fuel… ...
The Asteroid Belt
... Belt between about 2.1 and 4.1 AU. The majority of main belt asteroids follow slightly elliptical stable orbits, orbiting the Sun in the same direction as the Earth. Typically the orbital periods of these asteroids range from 3 to 8 years. There are also a few special resonances where asteroids like ...
... Belt between about 2.1 and 4.1 AU. The majority of main belt asteroids follow slightly elliptical stable orbits, orbiting the Sun in the same direction as the Earth. Typically the orbital periods of these asteroids range from 3 to 8 years. There are also a few special resonances where asteroids like ...
Hydrogen Greenhouse Planets Beyond the Habitable Zone
... 2010). We predict that any primordial hydrogen atmosphere has been lost by EUV-driven hydrodynamic escape carrying He and other light volatiles with it. In contrast, more massive OGLE05-390L, which orbits ∼2.6 AU from a mid Mtype star but has a similar effective temperature (Ehrenreich et al. 2006), ...
... 2010). We predict that any primordial hydrogen atmosphere has been lost by EUV-driven hydrodynamic escape carrying He and other light volatiles with it. In contrast, more massive OGLE05-390L, which orbits ∼2.6 AU from a mid Mtype star but has a similar effective temperature (Ehrenreich et al. 2006), ...
Astronomy From Å to ZZ — Howard L. Cohen
... James Walter Christy discovered Charon in 1978 at the Naval Observatory from a slight elongation or “bump” in a photograph of Pluto. Charon is named for the mythical ferryman who conveyed the dead to Hades over the river Styx. (Pluto was the Roman god of the dead and ruler of the underworld.) Charon ...
... James Walter Christy discovered Charon in 1978 at the Naval Observatory from a slight elongation or “bump” in a photograph of Pluto. Charon is named for the mythical ferryman who conveyed the dead to Hades over the river Styx. (Pluto was the Roman god of the dead and ruler of the underworld.) Charon ...
Orrery
An orrery is a mechanical model of the solar system that illustrates or predicts the relative positions and motions of the planets and moons, usually according to the heliocentric model. It may also represent the relative sizes of these bodies; but since accurate scaling is often not practical due to the actual large ratio differences, a subdued approximation may be used instead. Though the Greeks had working planetaria, the first orrery that was a planetarium of the modern era was produced in 1704, and one was presented to Charles Boyle, 4th Earl of Orrery — whence came the name. They are typically driven by a clockwork mechanism with a globe representing the Sun at the centre, and with a planet at the end of each of the arms.