Lecture 1: Observations of planetary systems
... We reside in our own planetary system, and much of what we know about planets and their origin comes from observations of the Solar System. The Solar System comprises the Sun, eight planets, and a large number of smaller bodies (including “dwarf planets”, asteroids, comets, etc.). The eight planets ...
... We reside in our own planetary system, and much of what we know about planets and their origin comes from observations of the Solar System. The Solar System comprises the Sun, eight planets, and a large number of smaller bodies (including “dwarf planets”, asteroids, comets, etc.). The eight planets ...
AST 105 HW #14 Solution
... The rare Earth hypothesis is the idea that Earth's hospitality is the result of rare planetary luck. The arguments in favor of this hypothesis are that there may be a fairly narrow ring at about our solar system's distance from the center of the galaxy where habitable planets might have enough hea ...
... The rare Earth hypothesis is the idea that Earth's hospitality is the result of rare planetary luck. The arguments in favor of this hypothesis are that there may be a fairly narrow ring at about our solar system's distance from the center of the galaxy where habitable planets might have enough hea ...
7-12 Script - Geophysical Institute
... Moving out even further, our galaxy is part of the universe. LOCAL UNIVERSE There is still much to learn about our universe. One thing we do know is that while gravitational attraction pulls some bodies closer together, the universe as a whole is expanding. This expansion started when the universe s ...
... Moving out even further, our galaxy is part of the universe. LOCAL UNIVERSE There is still much to learn about our universe. One thing we do know is that while gravitational attraction pulls some bodies closer together, the universe as a whole is expanding. This expansion started when the universe s ...
Solutions 1
... 23½ o tilt of the Earth's celestial equator with respect to the ecliptic (the path of the sun through the fixed stars). This will occur twice a year as the sun passes through the zenith and then back, except at the two tropic latitudes when it will occur once a year. 6. What is a penumbral eclipse o ...
... 23½ o tilt of the Earth's celestial equator with respect to the ecliptic (the path of the sun through the fixed stars). This will occur twice a year as the sun passes through the zenith and then back, except at the two tropic latitudes when it will occur once a year. 6. What is a penumbral eclipse o ...
Life Cycle of Star Flipbook
... 6. What is going to happen to our Sun’s magnitude and temperature when it goes to its next stage? 7. What is the final stage of our Sun’s life? 8. What will happen to our Sun’s magnitude and temperature when it goes to its final stage? 9. What determines which star will go supernova? 10. What two fo ...
... 6. What is going to happen to our Sun’s magnitude and temperature when it goes to its next stage? 7. What is the final stage of our Sun’s life? 8. What will happen to our Sun’s magnitude and temperature when it goes to its final stage? 9. What determines which star will go supernova? 10. What two fo ...
How to Find a Habitable Planet
... of stabilizing feedbacks between atmospheric CO2 and climate • Bad things happen, though, to planets around stars much different from the Sun --F and A stars: high stellar UV fluxes, short main sequence lifetimes --Late K and M stars: tidal locking, stellar flares, initial volatile inventories? ...
... of stabilizing feedbacks between atmospheric CO2 and climate • Bad things happen, though, to planets around stars much different from the Sun --F and A stars: high stellar UV fluxes, short main sequence lifetimes --Late K and M stars: tidal locking, stellar flares, initial volatile inventories? ...
Johannes Kepler
... at the same position while Earth was at two different positions. Kepler collected multiple sets of data points of Mars’ distance from the sun throughout its orbit. By using his pairs of data points, he determined the Law of Ellipses, which states: ...
... at the same position while Earth was at two different positions. Kepler collected multiple sets of data points of Mars’ distance from the sun throughout its orbit. By using his pairs of data points, he determined the Law of Ellipses, which states: ...
Earth Science Quarter 1 Credit Recovery
... How did planets form from smaller masses such as planetesimals and protoplanets? A protoplanet is created when many asteroids collide together and create a sphere with a molten core. Planetesimals are the many small pieces of asteroid that combine to make the protoplanet. ...
... How did planets form from smaller masses such as planetesimals and protoplanets? A protoplanet is created when many asteroids collide together and create a sphere with a molten core. Planetesimals are the many small pieces of asteroid that combine to make the protoplanet. ...
Time - Academic Computer Center
... • Scientific method – Astronomy is a mostly observational science – Can do only a few controlled experiments in astronomy • Stellar evolution nuclear reactors • Cosmology particle accelerators • Solar System – Send satellites & rovers to planets – Crash probe into comet: Deep Impact Mission ...
... • Scientific method – Astronomy is a mostly observational science – Can do only a few controlled experiments in astronomy • Stellar evolution nuclear reactors • Cosmology particle accelerators • Solar System – Send satellites & rovers to planets – Crash probe into comet: Deep Impact Mission ...
STAR OF BETHLEHEM
... For some time two planets will approach each other and finally merge. This will last only hours (and the total brightness will decrease during the occultation). But it would have profound astrological significance. These occultations are very rare; between 1570 and 2230 there are only 23 (including ...
... For some time two planets will approach each other and finally merge. This will last only hours (and the total brightness will decrease during the occultation). But it would have profound astrological significance. These occultations are very rare; between 1570 and 2230 there are only 23 (including ...
Uranus and Neptune are Comparable in Size
... places it between a star and the Earth. When this occurs, we refer to it as an occultation. During an occultation of a star by Uranus, the starlight intensity was noticed to decrease both before and after the planet’s disk crossed. This was due to the rings surrounding the planet. ...
... places it between a star and the Earth. When this occurs, we refer to it as an occultation. During an occultation of a star by Uranus, the starlight intensity was noticed to decrease both before and after the planet’s disk crossed. This was due to the rings surrounding the planet. ...
Your Place in Space and Time
... are microscopic on this scale. The portion of the universe that we can observe is limited by the age of the universe: Because our universe is about 14 billion years old, we can see no more than about 14 billion light-years in any direction. Measurements indicate that the observable universe contains ...
... are microscopic on this scale. The portion of the universe that we can observe is limited by the age of the universe: Because our universe is about 14 billion years old, we can see no more than about 14 billion light-years in any direction. Measurements indicate that the observable universe contains ...
STAR UNIT FLASH BACKS
... 1. TRUE OR FALSE: If a star is colored red, that means that it is moving AWAY from us (due to Red Shift). 2. How long would it take for an F-22 Raptor jet flying at top speed (1,500 miles per hour) to fly from the earth to the sun? a.) 8 minutes ...
... 1. TRUE OR FALSE: If a star is colored red, that means that it is moving AWAY from us (due to Red Shift). 2. How long would it take for an F-22 Raptor jet flying at top speed (1,500 miles per hour) to fly from the earth to the sun? a.) 8 minutes ...
Another New Year`s Day Celebration
... Page 3 of 4 The variation in the Sun's size is hardly noticeable for Earth but for Mercury and Pluto much more. (Again, see the diagram at http://tinyurl.com/pm5psml .) However, the disk of the Sun seen from Pluto is very small (about an arc minute) so that its disk would look “star-like” to the na ...
... Page 3 of 4 The variation in the Sun's size is hardly noticeable for Earth but for Mercury and Pluto much more. (Again, see the diagram at http://tinyurl.com/pm5psml .) However, the disk of the Sun seen from Pluto is very small (about an arc minute) so that its disk would look “star-like” to the na ...
ph507-16-1exo1
... • Solar System prototypes: Jupiter, Saturn, Uranus... • Substantial gaseous envelopes • Masses of the order of Jupiter mass • In the Solar System, NOT same composition as Sun • Presence of gas implies formation while gas was still prevalent Cores: Gas giants may have a rocky or metallic core—in fact ...
... • Solar System prototypes: Jupiter, Saturn, Uranus... • Substantial gaseous envelopes • Masses of the order of Jupiter mass • In the Solar System, NOT same composition as Sun • Presence of gas implies formation while gas was still prevalent Cores: Gas giants may have a rocky or metallic core—in fact ...
Chapter 29 Notes
... • Parallax is used to find the distance to stars • Constellations: Groups of stars in the same part of the sky • Clusters: groups of stars bound together by gravity • Binaries: two stars that orbit a common center of mass ...
... • Parallax is used to find the distance to stars • Constellations: Groups of stars in the same part of the sky • Clusters: groups of stars bound together by gravity • Binaries: two stars that orbit a common center of mass ...
Mercury is the first planet from the sun. Named by
... color in the night sky, also giving it the nickname of the “red planet.” It takes Mars around 687 days to complete its orbit around the sun. Mars has an average surface temperature of 210 Kelvins, and an equatorial diameter of 6, 804.9 km. Mars has two known satellites, or moons, which are Phobos an ...
... color in the night sky, also giving it the nickname of the “red planet.” It takes Mars around 687 days to complete its orbit around the sun. Mars has an average surface temperature of 210 Kelvins, and an equatorial diameter of 6, 804.9 km. Mars has two known satellites, or moons, which are Phobos an ...
Part 1) Steve Quayle is Right! A Dwarf Star, Capturing
... Earth-Masses. By Sir Isaac Newton's Universal Law of Gravitation, the magnitude of the force of attraction between two masses is directly proportional to the mass of body A multiplied by the mass of body B. Now, we know that passing meteors are sucked into Earth every single day of our lives. Why is ...
... Earth-Masses. By Sir Isaac Newton's Universal Law of Gravitation, the magnitude of the force of attraction between two masses is directly proportional to the mass of body A multiplied by the mass of body B. Now, we know that passing meteors are sucked into Earth every single day of our lives. Why is ...
- IIT Kanpur
... age, then all of them would not have been there today. But as we know, they are swirling around proudly. It means that the age of comets is less than that of the solar system. Now the question arises that if comets were born some few million years ago, then where they were before that. This question ...
... age, then all of them would not have been there today. But as we know, they are swirling around proudly. It means that the age of comets is less than that of the solar system. Now the question arises that if comets were born some few million years ago, then where they were before that. This question ...
The Night Sky
... Sun and Planets • wander relative to fixed stars • “planetes” is Greek for wanderers • seven known historically: Sun, Moon, Mercury, Venus, Mars, Jupiter, and Saturn - form basis of 7-day week - Babylonians • generally move west to east relative to stars, but retrograde motions also occur for some ...
... Sun and Planets • wander relative to fixed stars • “planetes” is Greek for wanderers • seven known historically: Sun, Moon, Mercury, Venus, Mars, Jupiter, and Saturn - form basis of 7-day week - Babylonians • generally move west to east relative to stars, but retrograde motions also occur for some ...
Regents Review
... rivers and thick, lush rainforest. There's more cloud cover and occasional rain, but the majority of the rainfall is at night. ...
... rivers and thick, lush rainforest. There's more cloud cover and occasional rain, but the majority of the rainfall is at night. ...
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.