Jupiter – Friend or Foe? IV:The influence of orbital eccentricity and
... The short-period comets is another population whose properties, at the current epoch, are determined by our Jupiter. As such, it would be unfair to take the currently observed short-period population and use them as the basis for a study of the influence of Jupiter on the impact rate at Earth – with ...
... The short-period comets is another population whose properties, at the current epoch, are determined by our Jupiter. As such, it would be unfair to take the currently observed short-period population and use them as the basis for a study of the influence of Jupiter on the impact rate at Earth – with ...
![David`s Mapping the Heavens[1]](http://s1.studyres.com/store/data/008084229_1-877ead4b57cbb51d927fdcd6d06ce5c8-300x300.png)
David`s Mapping the Heavens[1]
... Complete the following table. In each column outline what theory each astronomer came up with. Shapley ...
... Complete the following table. In each column outline what theory each astronomer came up with. Shapley ...
01_test_bank
... later, we take it out and the distances between raisins are 3 cm. If you lived in one of the raisins and watched the other raisins as the cake expanded, which of the following would you conclude? A) All raisins would be moving away from you at the same speed. B) More distant raisins would be moving ...
... later, we take it out and the distances between raisins are 3 cm. If you lived in one of the raisins and watched the other raisins as the cake expanded, which of the following would you conclude? A) All raisins would be moving away from you at the same speed. B) More distant raisins would be moving ...
Slide 1 - Personal.psu.edu
... Some fragments are too small for fusion ever to begin. They gradually cool off and become dark “clinkers.” A protostar must have 0.08 the mass of the Sun (which is 80 times the mass of Jupiter) in order to become dense and hot enough that fusion can begin. If the mass of the “failed star” is about 1 ...
... Some fragments are too small for fusion ever to begin. They gradually cool off and become dark “clinkers.” A protostar must have 0.08 the mass of the Sun (which is 80 times the mass of Jupiter) in order to become dense and hot enough that fusion can begin. If the mass of the “failed star” is about 1 ...
Jupiter Fact Sheet - UNT College of Arts and Sciences
... • Jupiter has an extensive magnetosphere about 10 time stronger than the Earth's. • This strong magnetic field is probably caused by Jupiter's very rapid rotation and its considerable liquid metallic hydrogen core. • Its magnetic field extends far out into space in a sheet structure centered on the ...
... • Jupiter has an extensive magnetosphere about 10 time stronger than the Earth's. • This strong magnetic field is probably caused by Jupiter's very rapid rotation and its considerable liquid metallic hydrogen core. • Its magnetic field extends far out into space in a sheet structure centered on the ...
Howard 2013 Observed properties of exoplanets
... giants) vary in size by a factor of ~2. For Planet size (relative to Earth) mass-period plane shows that occurrence the gas giants, the size dispersion at a varies as M – 0.31 ± 0.2P +0.26 ± 0.1 per loggiven mass largely is due to two effects. First, the presence of a massive solid arithmic interval ...
... giants) vary in size by a factor of ~2. For Planet size (relative to Earth) mass-period plane shows that occurrence the gas giants, the size dispersion at a varies as M – 0.31 ± 0.2P +0.26 ± 0.1 per loggiven mass largely is due to two effects. First, the presence of a massive solid arithmic interval ...
uranus 1
... blandness is due to seasonal effects. As Uranus approaches the position in its orbit where the Sun is directly over the equator, pronounced weather effects have become apparent. For example, in 2006, the Hubble Space Telescope obtained the first images of dark spots within the planet’s atmosphere 4. ...
... blandness is due to seasonal effects. As Uranus approaches the position in its orbit where the Sun is directly over the equator, pronounced weather effects have become apparent. For example, in 2006, the Hubble Space Telescope obtained the first images of dark spots within the planet’s atmosphere 4. ...
Test - Scioly.org
... potential sources of error in the collected data? i. Imperfections in the telescopes’ lenses/mirrors and general construction distort data ii. The diffraction of light blurs the observed image iii. Earth’s atmosphere has turbulence and uneven pressures that blur images iv. Photons arrive randoml ...
... potential sources of error in the collected data? i. Imperfections in the telescopes’ lenses/mirrors and general construction distort data ii. The diffraction of light blurs the observed image iii. Earth’s atmosphere has turbulence and uneven pressures that blur images iv. Photons arrive randoml ...
1-structure-of-the-universe-and-the-big-bang
... the universe was smaller, denser, and hotter in the past. In the 1940s, scientists predicted that heat (identified as cosmic microwave background radiation) left over from the Big Bang would fill the universe. In the 1960s, satellite probes found that cosmic microwave background radiation fills the ...
... the universe was smaller, denser, and hotter in the past. In the 1940s, scientists predicted that heat (identified as cosmic microwave background radiation) left over from the Big Bang would fill the universe. In the 1960s, satellite probes found that cosmic microwave background radiation fills the ...
The Milky Way - TCNJ | The College of New Jersey
... • Pop II Stars: Have compositions with much less heavy elements than the Sun: 72%H, 28% He, 0.2% metals is typical • Use the pp-II on the MS if M > 1.5 M • Are almost all older than 8 billion years. • Most are in the halo and galactic bulge; however plenty pass through the thick disk too. • Pop III ...
... • Pop II Stars: Have compositions with much less heavy elements than the Sun: 72%H, 28% He, 0.2% metals is typical • Use the pp-II on the MS if M > 1.5 M • Are almost all older than 8 billion years. • Most are in the halo and galactic bulge; however plenty pass through the thick disk too. • Pop III ...
Astronomy - Bemidji State University
... and kept a star catalogue with over 1000 stars. Tycho's records were used by Johan Kepler to describe the orbits of planets around the sun and disprove the Ptolemaic theory. Johan Kepler was a German astronomer who lived between 1571~1630. He introduced three important laws of planetary motion and h ...
... and kept a star catalogue with over 1000 stars. Tycho's records were used by Johan Kepler to describe the orbits of planets around the sun and disprove the Ptolemaic theory. Johan Kepler was a German astronomer who lived between 1571~1630. He introduced three important laws of planetary motion and h ...
v A v A
... = 0.0093 x 1.496 x 108 km = 1.392 x 106 km or Rsun = 6.96 x 105 km Can we apply same principles to the stars? e.g. Cen (like Sun) D = 1.3 pc = 2.7 x 105 AU; if Rcen = Rsun = 2Rsun/D = 0.0093 AU/2.7 x 105 AU = 3.3 x 10-8 rad = 0.007 arcsec (angular diameter of a dime 150 km away!) Can we resolve ...
... = 0.0093 x 1.496 x 108 km = 1.392 x 106 km or Rsun = 6.96 x 105 km Can we apply same principles to the stars? e.g. Cen (like Sun) D = 1.3 pc = 2.7 x 105 AU; if Rcen = Rsun = 2Rsun/D = 0.0093 AU/2.7 x 105 AU = 3.3 x 10-8 rad = 0.007 arcsec (angular diameter of a dime 150 km away!) Can we resolve ...
The Stars Tonight
... the situation leading to their observations, which ancient peoples certainly did not have. (Ancients could predict when and where an object would appear in the sky, some could even predict phenomena like eclipses, but none had any idea of the actual structure of the Solar System that led to their pr ...
... the situation leading to their observations, which ancient peoples certainly did not have. (Ancients could predict when and where an object would appear in the sky, some could even predict phenomena like eclipses, but none had any idea of the actual structure of the Solar System that led to their pr ...
UNIFIED PICTURE OF LARGE AND SMALL SCALE: MICRO
... Results of Superflare survey using Kepler Data • Using the Kepler satellite data we searched for superflares on solar type stars (G type main sequence stars) and discovered 420 events. • More than 50 superflares are found to occur on slowly rotating stars like our Sun (its period is 25 days). • We ...
... Results of Superflare survey using Kepler Data • Using the Kepler satellite data we searched for superflares on solar type stars (G type main sequence stars) and discovered 420 events. • More than 50 superflares are found to occur on slowly rotating stars like our Sun (its period is 25 days). • We ...
Which Constellation is Which?
... Objective – I can describe the appearance and apparent motion of groups of stars in the night sky. The constellation Ophiuchus (the Serpent Bearer) is the thirteenth. The Moon and the planets appear to move through the constellations of the Zodiac. Here’s what the Moon might look like travelling th ...
... Objective – I can describe the appearance and apparent motion of groups of stars in the night sky. The constellation Ophiuchus (the Serpent Bearer) is the thirteenth. The Moon and the planets appear to move through the constellations of the Zodiac. Here’s what the Moon might look like travelling th ...
The quick brown fox jumps over the lazy dog
... motion was quite different from the orderly progress of the planets, and that the deflection of Neptune and its satellite was becoming now of an unprecedented kind. Few people without a training in science can realise the huge isolation of the solar system. The sun with its specks of planets, its du ...
... motion was quite different from the orderly progress of the planets, and that the deflection of Neptune and its satellite was becoming now of an unprecedented kind. Few people without a training in science can realise the huge isolation of the solar system. The sun with its specks of planets, its du ...
17 - Department of Physics and Astronomy
... Thousands seen by the current generation of solar telescopes like NASA’s SOHO. Most evaporate away completely near perihelion. Large ones can be extraordinarily bright. Many of the Great Comets of history were sungrazers. • Like 1965 (a.k.a. Ikeya-Seki; above [Roger Lynds]), 1882 and 1843, all o ...
... Thousands seen by the current generation of solar telescopes like NASA’s SOHO. Most evaporate away completely near perihelion. Large ones can be extraordinarily bright. Many of the Great Comets of history were sungrazers. • Like 1965 (a.k.a. Ikeya-Seki; above [Roger Lynds]), 1882 and 1843, all o ...
Reach for the Stars – Div. B
... supernovae) condensed b by self gravity into globules. • The globules spun up due to conservation of angular momentum. Became a spinning disk. • The gas reached a critical density at the center and a star was formed. • Can’t see the new star because it is “cloaked” in the gas and dust. • Planets for ...
... supernovae) condensed b by self gravity into globules. • The globules spun up due to conservation of angular momentum. Became a spinning disk. • The gas reached a critical density at the center and a star was formed. • Can’t see the new star because it is “cloaked” in the gas and dust. • Planets for ...
Are planetary systems flat?
... • extrasolar planetary systems look quite different from the solar system (e.g., hot Jupiters) so there is no reason to expect that they formed in the same way • if planet formation were similar to star formation (collapse of dense cores in a cloud) we would expect an isotropic distribution – distri ...
... • extrasolar planetary systems look quite different from the solar system (e.g., hot Jupiters) so there is no reason to expect that they formed in the same way • if planet formation were similar to star formation (collapse of dense cores in a cloud) we would expect an isotropic distribution – distri ...
3D maps of the local interstellar medium: searching for the imprints
... produced by dust evaporation from regions having the same dust to gas ratio and the same initial abundance of D in the grains. This may also explain the observed apparent link between the D/H ratio and the LC/ belt geometry (Linsky et al, 2006). Despite all the advantages of the Olano supercloud sce ...
... produced by dust evaporation from regions having the same dust to gas ratio and the same initial abundance of D in the grains. This may also explain the observed apparent link between the D/H ratio and the LC/ belt geometry (Linsky et al, 2006). Despite all the advantages of the Olano supercloud sce ...
Homework #2 1. There are two ways to estimate the energy carried
... In lecture we showed that moderately massive stars become radiative well before they reach the main sequence. c) Does the transition from convective to radiative first happen at the center of the star or the outside (i.e., is the transition inside-out or outside-in)? To determine this, consider wher ...
... In lecture we showed that moderately massive stars become radiative well before they reach the main sequence. c) Does the transition from convective to radiative first happen at the center of the star or the outside (i.e., is the transition inside-out or outside-in)? To determine this, consider wher ...
Introduction to Astronomy
... Gravity is the glue that keeps the entire Universe together. It is a force of attraction that binds particles together to form atoms and so on, up the scale to the mass of the Universe itself. The greater the cumulative mass, the greater the attracting power. Gravity attraction can be mutual. The gr ...
... Gravity is the glue that keeps the entire Universe together. It is a force of attraction that binds particles together to form atoms and so on, up the scale to the mass of the Universe itself. The greater the cumulative mass, the greater the attracting power. Gravity attraction can be mutual. The gr ...
Formation and evolution of the Solar System
The formation of the Solar System began 4.6 billion years ago with the gravitational collapse of a small part of a giant molecular cloud. Most of the collapsing mass collected in the center, forming the Sun, while the rest flattened into a protoplanetary disk out of which the planets, moons, asteroids, and other small Solar System bodies formed.This widely accepted model, known as the nebular hypothesis, was first developed in the 18th century by Emanuel Swedenborg, Immanuel Kant, and Pierre-Simon Laplace. Its subsequent development has interwoven a variety of scientific disciplines including astronomy, physics, geology, and planetary science. Since the dawn of the space age in the 1950s and the discovery of extrasolar planets in the 1990s, the model has been both challenged and refined to account for new observations.The Solar System has evolved considerably since its initial formation. Many moons have formed from circling discs of gas and dust around their parent planets, while other moons are thought to have formed independently and later been captured by their planets. Still others, such as the Moon, may be the result of giant collisions. Collisions between bodies have occurred continually up to the present day and have been central to the evolution of the Solar System. The positions of the planets often shifted due to gravitational interactions. This planetary migration is now thought to have been responsible for much of the Solar System's early evolution.In roughly 5 billion years, the Sun will cool and expand outward many times its current diameter (becoming a red giant), before casting off its outer layers as a planetary nebula and leaving behind a stellar remnant known as a white dwarf. In the far distant future, the gravity of passing stars will gradually reduce the Sun's retinue of planets. Some planets will be destroyed, others ejected into interstellar space. Ultimately, over the course of tens of billions of years, it is likely that the Sun will be left with none of the original bodies in orbit around it.