the interstellar medium - Howard University Physics and Astronomy
... THE ORIGIN OF THE SOLAR SYSTEM • The age of the solar system is believed, from several lines of evidence, to be about 4.6 billion years. • The solar system was created by gravitational collapse of a cloud of interstellar material, consisting of gas and solid dust particles. • Observations with the ...
... THE ORIGIN OF THE SOLAR SYSTEM • The age of the solar system is believed, from several lines of evidence, to be about 4.6 billion years. • The solar system was created by gravitational collapse of a cloud of interstellar material, consisting of gas and solid dust particles. • Observations with the ...
Sample Midterm
... A newly discovered comet has a perihelion distance of 1 AU and an aphelion distance of 99 AU. Calculate: a. The comet’s semi-major axis. b. The comet’s period. c. The comet’s orbital eccentricity. ...
... A newly discovered comet has a perihelion distance of 1 AU and an aphelion distance of 99 AU. Calculate: a. The comet’s semi-major axis. b. The comet’s period. c. The comet’s orbital eccentricity. ...
Astronomy
... • observe and record the apparent movement of the Sun and Moon during the day.[5A] • observe and record the apparent movement of the Moon, planets, and stars in the nighttime sky.[5B] • observe and record data about lunar phases and use that information to model the Sun, Earth, and Moon system.[7A] ...
... • observe and record the apparent movement of the Sun and Moon during the day.[5A] • observe and record the apparent movement of the Moon, planets, and stars in the nighttime sky.[5B] • observe and record data about lunar phases and use that information to model the Sun, Earth, and Moon system.[7A] ...
Rocket Science
... Lethargic obtuseness is insubordinate and is discouraged by PBIS, as it may result in little or no monetary gain after secondary education or a fine of $250,000. ...
... Lethargic obtuseness is insubordinate and is discouraged by PBIS, as it may result in little or no monetary gain after secondary education or a fine of $250,000. ...
retrograde.simulator.online.activity - wikifuller
... called this prograde motion. However, many planets reverse their direction and appear as if they are going “backwards” for a brief period of time. We call this retrograde motion. This activity will explain why planets appear to move “backwards” in the night sky ...
... called this prograde motion. However, many planets reverse their direction and appear as if they are going “backwards” for a brief period of time. We call this retrograde motion. This activity will explain why planets appear to move “backwards” in the night sky ...
Terrestrial Planets II
... Venus has a surprisingly even crater distribution. No regions are significantly more or less heavily cratered than others. Compare this to craters on the Moon - the highlands are much more heavily cratered than the maria. We interpret the Moon’s crater densities to indicate that the highlands are ol ...
... Venus has a surprisingly even crater distribution. No regions are significantly more or less heavily cratered than others. Compare this to craters on the Moon - the highlands are much more heavily cratered than the maria. We interpret the Moon’s crater densities to indicate that the highlands are ol ...
Dating of samples and planetary surfaces Radioactive dating: Rb
... The nucleosynthesis, which created some of the heavy elements of which the terrestrial planets are formed, occured not more than a few Myr before the solar system formed (otherwise 26Al would have no longer been present). Perhaps a supernova explosion occured ~ 5 Myr before the CAIs condensed, blowi ...
... The nucleosynthesis, which created some of the heavy elements of which the terrestrial planets are formed, occured not more than a few Myr before the solar system formed (otherwise 26Al would have no longer been present). Perhaps a supernova explosion occured ~ 5 Myr before the CAIs condensed, blowi ...
Chapter 2: Emergence of Modern Astronomy
... Measure synodic period (position relative to Sun) then calculate sidereal period (change sign for superior planets) ...
... Measure synodic period (position relative to Sun) then calculate sidereal period (change sign for superior planets) ...
01 - MrPetersenScience
... _______________________________________________________________ 12. How often does Jupiter rotate on its axis? _______________________________________________________________ 13. Jupiter has at least 63 ______________________ , 4 of which are the size of small planets. 14. How much of Jupiter’s atmo ...
... _______________________________________________________________ 12. How often does Jupiter rotate on its axis? _______________________________________________________________ 13. Jupiter has at least 63 ______________________ , 4 of which are the size of small planets. 14. How much of Jupiter’s atmo ...
Ch 12 and 13 ppt 2010
... Theory of the Earth Created the fundamental principle of uniformitarianism The focus and process that we observe today have been at work for a very long time “the present is the key to the past” ...
... Theory of the Earth Created the fundamental principle of uniformitarianism The focus and process that we observe today have been at work for a very long time “the present is the key to the past” ...
How are the planets in the solar system alike and different?
... In what ways are Jupiter and Saturn alike? They are both outer planets, are gas giants, have rings and take about 10 Earth days to rotate. How long is one year on Jupiter? 12 Earth years How do gas giants differ from rocky planets? Gas giants are much larger and farther apart. They are made mostly o ...
... In what ways are Jupiter and Saturn alike? They are both outer planets, are gas giants, have rings and take about 10 Earth days to rotate. How long is one year on Jupiter? 12 Earth years How do gas giants differ from rocky planets? Gas giants are much larger and farther apart. They are made mostly o ...
Astronomy Study Guide and Key Astronomy Study Guide
... If a Lunar Eclipse is happening, what phase must the Moon be in? Why? A Lunar Eclipse is when the Earth’s shadow falls on the Moon. For that to happen the Sun, Earth, and Moon must be in a line (in that order). This is the alignment that creates a full moon…when the side of the Moon that faces the E ...
... If a Lunar Eclipse is happening, what phase must the Moon be in? Why? A Lunar Eclipse is when the Earth’s shadow falls on the Moon. For that to happen the Sun, Earth, and Moon must be in a line (in that order). This is the alignment that creates a full moon…when the side of the Moon that faces the E ...
Earth - jennydebellis
... one Earth revolves around the Sun and the moon revolves around Earth Earth revolves around the Sun once a ...
... one Earth revolves around the Sun and the moon revolves around Earth Earth revolves around the Sun once a ...
File
... Pluto have axes of rotation that are nearly perpendicular to the plane of the ecliptic. 5. The 4 innermost planets all have similar densities and compositions. 6. The 4 outer planets that are gas giants have similar densities and compositions. ...
... Pluto have axes of rotation that are nearly perpendicular to the plane of the ecliptic. 5. The 4 innermost planets all have similar densities and compositions. 6. The 4 outer planets that are gas giants have similar densities and compositions. ...
Life in the Universe
... In 2004, NASA’s Spirit and Opportunity rovers sent home new mineral evidence of past liquid water on Mars. ...
... In 2004, NASA’s Spirit and Opportunity rovers sent home new mineral evidence of past liquid water on Mars. ...
planet - Groups
... east. This is called direct motion. Every so often a planet moves from east to west against the background of stars. This is called retrograde motion. The amount of time between occurrences of retrograde motion for any given planet is called the synodic period. ...
... east. This is called direct motion. Every so often a planet moves from east to west against the background of stars. This is called retrograde motion. The amount of time between occurrences of retrograde motion for any given planet is called the synodic period. ...
first semester final study guide
... c. Elliptical orbits around Earth. d. Elliptical orbits around the sun. ...
... c. Elliptical orbits around Earth. d. Elliptical orbits around the sun. ...
2010_03_09 LP18 & 19 Jupiter Saturn Uranus
... – Giving off heat, but only what it had to start with ...
... – Giving off heat, but only what it had to start with ...
SolarSystemScaleProject_05
... on a bicycle moving at a velocity of 20 km/hr? How long would that same trip take if you walked at a steady pace of 5 km/hr? What general conclusion can you make based on these calculations? 8. Use the distance between each planet and the Sun to calculate the circumference (C) of each orbit. Compare ...
... on a bicycle moving at a velocity of 20 km/hr? How long would that same trip take if you walked at a steady pace of 5 km/hr? What general conclusion can you make based on these calculations? 8. Use the distance between each planet and the Sun to calculate the circumference (C) of each orbit. Compare ...
Ch 22 The Sun & It’s Solar System
... c. Thought tides were caused by force of moon as it revolves around Earth d. Used gravity to explain the long orbit of comets & proved they are a part of the solar system ...
... c. Thought tides were caused by force of moon as it revolves around Earth d. Used gravity to explain the long orbit of comets & proved they are a part of the solar system ...
Late Heavy Bombardment
The Late Heavy Bombardment (abbreviated LHB and also known as the lunar cataclysm) is a hypothetical event thought to have occurred approximately 4.1 to 3.8 billion years (Ga) ago, corresponding to the Neohadean and Eoarchean eras on Earth. During this interval, a disproportionately large number of asteroids apparently collided with the early terrestrial planets in the inner Solar System, including Mercury, Venus, Earth, and Mars. The LHB happened after the Earth and other rocky planets had formed and accreted most of their mass, but still quite early in Earth's history.Evidence for the LHB derives from lunar samples brought back by the Apollo astronauts. Isotopic dating of Moon rocks implies that most impact melts occurred in a rather narrow interval of time. Several hypotheses are now offered to explain the apparent spike in the flux of impactors (i.e. asteroids and comets) in the inner Solar System, but no consensus yet exists. The Nice model is popular among planetary scientists; it postulates that the gas giant planets underwent orbital migration and scattered objects in the asteroid and/or Kuiper belts into eccentric orbits, and thereby into the path of the terrestrial planets. Other researchers argue that the lunar sample data do not require a cataclysmic cratering event near 3.9 Ga, and that the apparent clustering of impact melt ages near this time is an artifact of sampling materials retrieved from a single large impact basin. They also note that the rate of impact cratering could be significantly different between the outer and inner zones of the Solar System.