GY 112 Lecture Notes - University of South Alabama
... Now don’t get me wrong. I actually like some aspects of physics and chemistry (I actually hold a BS in Chemistry and Geology), it’s just that I don’t like the excessive exactness of those “exact sciences”. I prefer a science that allows for a certain amount of speculation (or as I call it “day dream ...
... Now don’t get me wrong. I actually like some aspects of physics and chemistry (I actually hold a BS in Chemistry and Geology), it’s just that I don’t like the excessive exactness of those “exact sciences”. I prefer a science that allows for a certain amount of speculation (or as I call it “day dream ...
1 CHAPTER 8 PLANETARY MOTIONS 8.1 Introduction The word
... Planets that are closer to the Sun than Earth (i.e. whose orbital radii are less than 1 AU), that is to say the planets Mercury and Venus, are inferior planets. (Any asteroids that may be found in such orbits are therefore inferior asteroids, and, technically, any spacecraft that are in solar orbits ...
... Planets that are closer to the Sun than Earth (i.e. whose orbital radii are less than 1 AU), that is to say the planets Mercury and Venus, are inferior planets. (Any asteroids that may be found in such orbits are therefore inferior asteroids, and, technically, any spacecraft that are in solar orbits ...
Winter 2006 - Cornell Astronomy
... exactly perpendicular to its orbital plane about the Sun so that despite being very close to the Sun, with daytime temperatures at the equator reaching 467°C (872°F), it also has permanently shadowed craters at its poles with very low temperatures. Figure 1 shows an Arecibo radar image of the north ...
... exactly perpendicular to its orbital plane about the Sun so that despite being very close to the Sun, with daytime temperatures at the equator reaching 467°C (872°F), it also has permanently shadowed craters at its poles with very low temperatures. Figure 1 shows an Arecibo radar image of the north ...
Planetary Science - Columbia Falls Junior High
... 3. The hours of daylight on Earth vary from 0 to 24 hours per day depending on the latitude, and season. This is because of the Earth’s tilt. 4. The Earth revolves around the Sun once every 365 ¼ days. ...
... 3. The hours of daylight on Earth vary from 0 to 24 hours per day depending on the latitude, and season. This is because of the Earth’s tilt. 4. The Earth revolves around the Sun once every 365 ¼ days. ...
Day 3
... parallax, and thus still thought Earth must be at center of solar system (but recognized that other planets go around Sun). • Hired Kepler, who used Tycho's observations to discover the truth about planetary motion. Tycho Brahe (1546-1601) ...
... parallax, and thus still thought Earth must be at center of solar system (but recognized that other planets go around Sun). • Hired Kepler, who used Tycho's observations to discover the truth about planetary motion. Tycho Brahe (1546-1601) ...
radioactive age dating
... v = SQRT (3 x k x T / m) If v , 6 x vesc then gas escapes the planet’s gravity. ...
... v = SQRT (3 x k x T / m) If v , 6 x vesc then gas escapes the planet’s gravity. ...
Searching For Planets Beyond Our Solar System - Cosmos
... 2000 Plus programme (and a similar concept is being considered by NASA as part of its `Origins' programme) aims to detect this very faint infrared emission from a possible planet close to the target star. An interferometer with four or ve cooled apertures, a baseline of 40{50 m, and placed well bey ...
... 2000 Plus programme (and a similar concept is being considered by NASA as part of its `Origins' programme) aims to detect this very faint infrared emission from a possible planet close to the target star. An interferometer with four or ve cooled apertures, a baseline of 40{50 m, and placed well bey ...
Chapter 19
... How the Moon Formed There are several theories for how the moon formed. Some Thought a separate body was captured by Earth’s gravity. Others thought the moon formed at the same time as Earth. When Earth was still forming it was molten, or heated to an almost liquid state. A Mar-sized body struck Ear ...
... How the Moon Formed There are several theories for how the moon formed. Some Thought a separate body was captured by Earth’s gravity. Others thought the moon formed at the same time as Earth. When Earth was still forming it was molten, or heated to an almost liquid state. A Mar-sized body struck Ear ...
16 October 2006
... Another interesting pattern . . . • Uranium 238 (half-life 4.5 billion years) is 140 times more common than uranium-235 (half-life 0.7 billion years). Other isotopes of uranium are not found on earth, although some have half-lives in the millions of years. • Elements heavier than uranium do not occ ...
... Another interesting pattern . . . • Uranium 238 (half-life 4.5 billion years) is 140 times more common than uranium-235 (half-life 0.7 billion years). Other isotopes of uranium are not found on earth, although some have half-lives in the millions of years. • Elements heavier than uranium do not occ ...
How to find ET with infrared light
... ore than 50 years ago, while discussing the lack of evidence of extraterrestrials during a lunchtime conversation with colleagues, physicist Enrico Fermi voiced the famous question: Why do we seem to be alone in the universe? His query is now even more perplexing given the large number of planets th ...
... ore than 50 years ago, while discussing the lack of evidence of extraterrestrials during a lunchtime conversation with colleagues, physicist Enrico Fermi voiced the famous question: Why do we seem to be alone in the universe? His query is now even more perplexing given the large number of planets th ...
The search for extraterrestrial intelligence has mostly revolved
... ore than 50 years ago, while discussing the lack of evidence of extraterrestrials during a lunchtime conversation with colleagues, physicist Enrico Fermi voiced the famous question: Why do we seem to be alone in the universe? His query is now even more perplexing given the large number of planets th ...
... ore than 50 years ago, while discussing the lack of evidence of extraterrestrials during a lunchtime conversation with colleagues, physicist Enrico Fermi voiced the famous question: Why do we seem to be alone in the universe? His query is now even more perplexing given the large number of planets th ...
HW6 class solution
... 2. On the same graph, plot the gravitational acceleration of the satellite due to Earths gravity and the (maximum) gravitational acceleration of the satellite due to the Suns gravity as a function of the altitude of the satellite as measured from the surface of the Earth. Scale your plot so that the ...
... 2. On the same graph, plot the gravitational acceleration of the satellite due to Earths gravity and the (maximum) gravitational acceleration of the satellite due to the Suns gravity as a function of the altitude of the satellite as measured from the surface of the Earth. Scale your plot so that the ...
Photosynthetic Potential of Planets in 3:2 Spin Orbit
... The habitable zone (HZ) concept, which describes an annulus around a star in which planets of Earth mass and atmospheric composition can sustain surface liquid water (Huang 1959, Dole 1964), has been an extremely useful conceptual tool in understanding under what conditions Earth-like planets may be ...
... The habitable zone (HZ) concept, which describes an annulus around a star in which planets of Earth mass and atmospheric composition can sustain surface liquid water (Huang 1959, Dole 1964), has been an extremely useful conceptual tool in understanding under what conditions Earth-like planets may be ...
Lecture12-ASTA01
... • Since 1992, astronomers have discovered roughly a thousand small, dark, icy bodies orbiting in the outer fringes of the solar system beyond Neptune. ...
... • Since 1992, astronomers have discovered roughly a thousand small, dark, icy bodies orbiting in the outer fringes of the solar system beyond Neptune. ...
Kepler, Newton, and laws of motion
... !! Kepler’s 3rd law, as modified by Newton (coming up), will be a cornerstone of much of this course, because it allows us to estimate masses of astronomical objects (e.g. masses of stars, galaxies, the existence of black holes and the mysterious “dark matter”). ! Example of use of Kepler’s 3rd law ...
... !! Kepler’s 3rd law, as modified by Newton (coming up), will be a cornerstone of much of this course, because it allows us to estimate masses of astronomical objects (e.g. masses of stars, galaxies, the existence of black holes and the mysterious “dark matter”). ! Example of use of Kepler’s 3rd law ...
Lecture 6: Planet migration
... If we assume that a massive planetesimal disc exists at early times, this process can drive substantial migration of fairly massive planets. Modelling and observations both suggest that the total mass of such a disc can be 2–3 orders of magnitude larger than the mass of the present-day Kuiper Belt, ...
... If we assume that a massive planetesimal disc exists at early times, this process can drive substantial migration of fairly massive planets. Modelling and observations both suggest that the total mass of such a disc can be 2–3 orders of magnitude larger than the mass of the present-day Kuiper Belt, ...
Solar System: ground-based
... dust in disks down to lunar masses at subarcsec resolution (down to 1 AU) out to distances of 300 pc • VLTI-MIDI will be able to image the hot dust within few AU in brightest systems • Herschel will provide peak luminosity and spectral energy ...
... dust in disks down to lunar masses at subarcsec resolution (down to 1 AU) out to distances of 300 pc • VLTI-MIDI will be able to image the hot dust within few AU in brightest systems • Herschel will provide peak luminosity and spectral energy ...
Lab 3: The Galilean Revolution
... Next you are going to measure the orbit of one of your planet's moons: If your planet is Jupiter, you will measure the orbit of Ganymede. If your planet is Saturn, you will measure the orbit of Titan. If your planet is Uranus, you will measure the orbit of Oberon. If your planet is Neptune, you will ...
... Next you are going to measure the orbit of one of your planet's moons: If your planet is Jupiter, you will measure the orbit of Ganymede. If your planet is Saturn, you will measure the orbit of Titan. If your planet is Uranus, you will measure the orbit of Oberon. If your planet is Neptune, you will ...
Lecture 7 Phys 1810
... • Tidal forces: cause distortion of an object by pull of another object. • Can occur when – Objects close (e.g. Earth & Moon) – 1 object is very massive (e.g. Jupiter & Io; Sun & Earth.) ...
... • Tidal forces: cause distortion of an object by pull of another object. • Can occur when – Objects close (e.g. Earth & Moon) – 1 object is very massive (e.g. Jupiter & Io; Sun & Earth.) ...
the southern astronomer
... If you no longer wish to subscribe to the group and cancel newsletters and other information, please send an email to: [email protected] with 'Unsubscribe' in the subject line; we do not want our stuff to end up like spam littering your inbox. Volunteers are always welcome: if you want ...
... If you no longer wish to subscribe to the group and cancel newsletters and other information, please send an email to: [email protected] with 'Unsubscribe' in the subject line; we do not want our stuff to end up like spam littering your inbox. Volunteers are always welcome: if you want ...
4. How Close Will It Come?
... c. Using the conversion factor of 1 AU = 92 955 887.6 miles, convert this value to miles. Write “Apophis will be _______________ miles from Earth on April 14, 2029.” d. The closest approach of Earth’s moon at perigee is 363, 104 km. Using the conversion factor 1 km = 0.62 miles, convert the Apophis ...
... c. Using the conversion factor of 1 AU = 92 955 887.6 miles, convert this value to miles. Write “Apophis will be _______________ miles from Earth on April 14, 2029.” d. The closest approach of Earth’s moon at perigee is 363, 104 km. Using the conversion factor 1 km = 0.62 miles, convert the Apophis ...
Solar System - WordPress.com
... unexplored. Since 1930 when Pluto was discovered and designated the 9th planet, even larger objects have been discovered in the Kuiper Belt, and in 2006 Pluto was downgraded to a “dwarf planet”. Diameter – 19% of Earth’s diameter (1,430 miles) Period of orbit (“year”) – 248 Earth years Average dista ...
... unexplored. Since 1930 when Pluto was discovered and designated the 9th planet, even larger objects have been discovered in the Kuiper Belt, and in 2006 Pluto was downgraded to a “dwarf planet”. Diameter – 19% of Earth’s diameter (1,430 miles) Period of orbit (“year”) – 248 Earth years Average dista ...
The Copernican Revolution
... one moon. Both planets closer to the Sun than Earth have no moons. Comets orbit the Sun also. They are dirty icebergs (or icy dirtballs) orbiting along extremely stretched-out (meaning, highly eccentric) ellipses. Many of the comets we see as they pass near the Sun take many thousands of years to ...
... one moon. Both planets closer to the Sun than Earth have no moons. Comets orbit the Sun also. They are dirty icebergs (or icy dirtballs) orbiting along extremely stretched-out (meaning, highly eccentric) ellipses. Many of the comets we see as they pass near the Sun take many thousands of years to ...
Astronomy practice questions for 3-6 test
... 13. How could we detect the chemical make-‐up of an exoplanet’s atmosphere? ...
... 13. How could we detect the chemical make-‐up of an exoplanet’s atmosphere? ...
Planets beyond Neptune
Following the discovery of the planet Neptune in 1846, there was considerable speculation that another planet might exist beyond its orbit. The search began in the mid-19th century and culminated at the start of the 20th with Percival Lowell's quest for Planet X. Lowell proposed the Planet X hypothesis to explain apparent discrepancies in the orbits of the giant planets, particularly Uranus and Neptune, speculating that the gravity of a large unseen ninth planet could have perturbed Uranus enough to account for the irregularities.Clyde Tombaugh's discovery of Pluto in 1930 appeared to validate Lowell's hypothesis, and Pluto was officially named the ninth planet. In 1978, Pluto was conclusively determined to be too small for its gravity to affect the giant planets, resulting in a brief search for a tenth planet. The search was largely abandoned in the early 1990s, when a study of measurements made by the Voyager 2 spacecraft found that the irregularities observed in Uranus's orbit were due to a slight overestimation of Neptune's mass. After 1992, the discovery of numerous small icy objects with similar or even wider orbits than Pluto led to a debate over whether Pluto should remain a planet, or whether it and its neighbours should, like the asteroids, be given their own separate classification. Although a number of the larger members of this group were initially described as planets, in 2006 the International Astronomical Union reclassified Pluto and its largest neighbours as dwarf planets, leaving Neptune the farthest known planet in the Solar System.Today, the astronomical community widely agrees that Planet X, as originally envisioned, does not exist, but the concept of Planet X has been revived by a number of astronomers to explain other anomalies observed in the outer Solar System. In popular culture, and even among some astronomers, Planet X has become a stand-in term for any undiscovered planet in the outer Solar System, regardless of its relationship to Lowell's hypothesis. Other trans-Neptunian planets have also been suggested, based on different evidence. As of March 2014, observations with the WISE telescope have ruled out the possibility of a Saturn-sized object out to 10,000 AU, and a Jupiter-sized or larger object out to 26,000 AU.