Planetary Taxonomy
... transition. transition A taxonomy based on roundness is highly problematic. We can tolerate some uncertainty in establishing the "world" status of a newly discovered object object, and still establish its planet or satellite status with existing dynamical criteria. ...
... transition. transition A taxonomy based on roundness is highly problematic. We can tolerate some uncertainty in establishing the "world" status of a newly discovered object object, and still establish its planet or satellite status with existing dynamical criteria. ...
Announcements
... l The spacecraft furthest from the Sun is Voyager 1; it’s around 1.8X1010 km from the Sun, travelling at 61,000 km/hr l If it were travelling in the direction of the nearest star, it would take 74,000 ...
... l The spacecraft furthest from the Sun is Voyager 1; it’s around 1.8X1010 km from the Sun, travelling at 61,000 km/hr l If it were travelling in the direction of the nearest star, it would take 74,000 ...
2 Measurements in Astronomy
... Measurements in Astronomy Astronomical unit: distance from Earth to the Sun (about 150,000,000 kilometers, or 93,000,000 miles). Used for measuring distances within our solar system. Light year: the distance light travels in one year (nearly 10 trillion kilometers or 6 trillion miles). Used for ...
... Measurements in Astronomy Astronomical unit: distance from Earth to the Sun (about 150,000,000 kilometers, or 93,000,000 miles). Used for measuring distances within our solar system. Light year: the distance light travels in one year (nearly 10 trillion kilometers or 6 trillion miles). Used for ...
Chapter 6. - Department of Physics & Astronomy
... => The telescope aperture produces fringe rings that set a limit to the resolution of the telescope. Astronomers can’t eliminate these diffraction fringes, but the larger a telescope is in diameter, the smaller the diffraction fringes are. Thus the larger the telescope, the better its resolving powe ...
... => The telescope aperture produces fringe rings that set a limit to the resolution of the telescope. Astronomers can’t eliminate these diffraction fringes, but the larger a telescope is in diameter, the smaller the diffraction fringes are. Thus the larger the telescope, the better its resolving powe ...
Binary Star Systems Discussion Points 1. What characteristic of a
... 19. The V809 Cyg pair takes 213 years to orbit one another. The V986 Sgr pair orbits one another in only 10.3 days. What does this mean about the distances between the stars within each pair? ...
... 19. The V809 Cyg pair takes 213 years to orbit one another. The V986 Sgr pair orbits one another in only 10.3 days. What does this mean about the distances between the stars within each pair? ...
Class 1 and 2 lecture slides (Solar System Formation)
... 2:1 resonance; b) scattering of planetesimals into the inner Solar System after the orbital shift of Neptune (dark blue) and Uranus (light blue); c) after ejection of planetesimals by planets. Simulation showing the outer planets and theKuiper belt: a) Before Jupiter–Saturn 2:1 resonance. b) Scatter ...
... 2:1 resonance; b) scattering of planetesimals into the inner Solar System after the orbital shift of Neptune (dark blue) and Uranus (light blue); c) after ejection of planetesimals by planets. Simulation showing the outer planets and theKuiper belt: a) Before Jupiter–Saturn 2:1 resonance. b) Scatter ...
Professor Emeritus, University of Canterbury Yevgeny Lifshitz
... would curve towards it. This amounts to 1.75” close to the sun. The only time that photographs can be taken successfully near the sun is during a solar eclipse so the observations had to wait for a suitable moment. This did not occur until after World War I. ...
... would curve towards it. This amounts to 1.75” close to the sun. The only time that photographs can be taken successfully near the sun is during a solar eclipse so the observations had to wait for a suitable moment. This did not occur until after World War I. ...
Earth`s Rotation and Effects
... High and low tides ~ 12hrs; alternate ~ 6 hrs Solar tides are about half as strong as lunar tides When the sun and the moon are in line with the earth (line of nodes), at new and full moon, the tidal effects add up and we have the strongest tides called Spring Tides When the moon is in quarter posit ...
... High and low tides ~ 12hrs; alternate ~ 6 hrs Solar tides are about half as strong as lunar tides When the sun and the moon are in line with the earth (line of nodes), at new and full moon, the tidal effects add up and we have the strongest tides called Spring Tides When the moon is in quarter posit ...
![Lectures 10 & 11 powerpoint (stellar formation) [movie below]](http://s1.studyres.com/store/data/008083226_1-fec717da713794a7feea61d4eec0ceb1-300x300.png)
Lectures 10 & 11 powerpoint (stellar formation) [movie below]
... all layers above, everywhere in the star. This is why we find stable stars on such a narrow strip (main sequence) in the Hertzsprung-Russell diagram. ...
... all layers above, everywhere in the star. This is why we find stable stars on such a narrow strip (main sequence) in the Hertzsprung-Russell diagram. ...
time astro 2014 - Fort Thomas Independent Schools
... the caused by the precession of the equinoxes (Earth’s gradual precession causes the orientation of the equatorial plane to shift slightly relative to the ecliptic ...
... the caused by the precession of the equinoxes (Earth’s gradual precession causes the orientation of the equatorial plane to shift slightly relative to the ecliptic ...
doc
... sun, eight other planets and their moons, and smaller objects, such as asteroids and comets. The sun, an average star, is the central and largest body in the solar system. Most objects in the solar system are in regular and predictable motion. Those motions explain such phenomena as the day, the yea ...
... sun, eight other planets and their moons, and smaller objects, such as asteroids and comets. The sun, an average star, is the central and largest body in the solar system. Most objects in the solar system are in regular and predictable motion. Those motions explain such phenomena as the day, the yea ...
a to z of astronomy
... Material in the Universe which has so far not been directly observed (also called missing mass). DECLINATION One of the measures used to determine position in the sky. Together with right ascension it forms the most widely used coordinate system in astronomy. Declination is the angular distance up o ...
... Material in the Universe which has so far not been directly observed (also called missing mass). DECLINATION One of the measures used to determine position in the sky. Together with right ascension it forms the most widely used coordinate system in astronomy. Declination is the angular distance up o ...
Powerpoint
... • random walk - photons (the packets of energy released during fusion) bounce around bumping into atoms and nuclei for 30,000-1,000,000* years until they finally wander out ...
... • random walk - photons (the packets of energy released during fusion) bounce around bumping into atoms and nuclei for 30,000-1,000,000* years until they finally wander out ...
Problem Set 1 - Cambridge University Press
... 2. Figure 1 is the estimated heat flow (the units are 10-6 watts/m2) from the Earth's interior over time from the Earth's time of formation (0) to the present (4.6 Byr later). Why does it have this shape and trend? What does it imply for Earth's geological processes in the future? ...
... 2. Figure 1 is the estimated heat flow (the units are 10-6 watts/m2) from the Earth's interior over time from the Earth's time of formation (0) to the present (4.6 Byr later). Why does it have this shape and trend? What does it imply for Earth's geological processes in the future? ...
Sample
... On the equinoxes, the two hemispheres get the same amount of sunlight, and the day and night are the same length (12 hours) in both hemispheres. The Sun is found directly overhead at the equator on these days, and it rises due east and sets due west. The direction in which Earth’s rotation axis poin ...
... On the equinoxes, the two hemispheres get the same amount of sunlight, and the day and night are the same length (12 hours) in both hemispheres. The Sun is found directly overhead at the equator on these days, and it rises due east and sets due west. The direction in which Earth’s rotation axis poin ...
Chapter 19. Mapping the Universe from Herschel to Sloan
... While Cepheids are useful for getting distances to nearby galaxies it is also a painfully slow process because you need to get many images of a galaxy spread out over more than a year and discover all the Cepheids, measure their brightnesses as a function of time, etc. Fortunately, a second discover ...
... While Cepheids are useful for getting distances to nearby galaxies it is also a painfully slow process because you need to get many images of a galaxy spread out over more than a year and discover all the Cepheids, measure their brightnesses as a function of time, etc. Fortunately, a second discover ...
Earth Dimensions
... survive and our weather. The other three layers are the Stratosphere, Mesosphere, and ...
... survive and our weather. The other three layers are the Stratosphere, Mesosphere, and ...
Chap 2 Lecture(1)
... The Solar System, Sun, and Earth Our solar system is located in the milky way galaxy, a flattened disk shaped mass estimated to contain more than 400 billion stars. Our solar system is more than halfway out from the galatic centre in one of the milky way’s spiral arms – the Orion arm. The sun and t ...
... The Solar System, Sun, and Earth Our solar system is located in the milky way galaxy, a flattened disk shaped mass estimated to contain more than 400 billion stars. Our solar system is more than halfway out from the galatic centre in one of the milky way’s spiral arms – the Orion arm. The sun and t ...
Astrobiology: The Search for Extraterrestrial Life
... and planetary science have increased the span of what we consider to be habitable zones around other stars. Additionally, advancements in these fields have uncovered a large variety of organisms with the capability to thrive in very harsh environments on Earth. These discoveries have led to a great ...
... and planetary science have increased the span of what we consider to be habitable zones around other stars. Additionally, advancements in these fields have uncovered a large variety of organisms with the capability to thrive in very harsh environments on Earth. These discoveries have led to a great ...
Document
... • How do we know the distance to stars and clusters in our galaxy? • Stellar parallax: – Parallax of nearby stars relative to background stars. – Good out to ~500 pc. ...
... • How do we know the distance to stars and clusters in our galaxy? • Stellar parallax: – Parallax of nearby stars relative to background stars. – Good out to ~500 pc. ...
Life Cycle of a Star
... but a dense ball of neutrons. It is possible that this core will remain intact after the supernova, and be called a neutron star. However, if the original star was very massive (say 15 or more times the mass of our Sun), even the neutrons will not be able to survive the core collapse and a black hol ...
... but a dense ball of neutrons. It is possible that this core will remain intact after the supernova, and be called a neutron star. However, if the original star was very massive (say 15 or more times the mass of our Sun), even the neutrons will not be able to survive the core collapse and a black hol ...
Life Cycle of a Star worksheet
... Learning Goal: I can describe the life cycle of various types of stars. All stars start as a ______________. A ______________ is a large cloud of gas and dust. Gravity can pull some of the gas and dust in a nebula together. The contracting cloud is then called a ___________. A protostar is the earli ...
... Learning Goal: I can describe the life cycle of various types of stars. All stars start as a ______________. A ______________ is a large cloud of gas and dust. Gravity can pull some of the gas and dust in a nebula together. The contracting cloud is then called a ___________. A protostar is the earli ...
D1 Stellar quantities (PPT)
... The fusing of hydrogen into helium takes up the majority of a star’s lifetime and is the reason why there are far more main sequence stars than those in other phases of their life-cycle. ...
... The fusing of hydrogen into helium takes up the majority of a star’s lifetime and is the reason why there are far more main sequence stars than those in other phases of their life-cycle. ...
Previously on Astro-1
... The angle α must be in arcseconds. The distances can be in any unit, as long as they are the same. Example: What is the linear diameter of the moon if it is half a degree wide, and 400,000 km away? ...
... The angle α must be in arcseconds. The distances can be in any unit, as long as they are the same. Example: What is the linear diameter of the moon if it is half a degree wide, and 400,000 km away? ...
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... some time to think about and/or look up the English words for the things they want to take to the new planets. Ask the pupils to bring their dictionaries. ...
... some time to think about and/or look up the English words for the things they want to take to the new planets. Ask the pupils to bring their dictionaries. ...