Quiz4 - UNLV Physics
... A) Earth-mass, in Earth-like orbits. B) Jupiter-mass, in Jupiter-like orbits. C) Jupiter-mass, in very close orbits. D) Earth-mass, in very close orbits. E) a wide range of masses, in edge-on orbits. Answer: C Current techniques can measure stellar motion to less than A) walking speed. B) running sp ...
... A) Earth-mass, in Earth-like orbits. B) Jupiter-mass, in Jupiter-like orbits. C) Jupiter-mass, in very close orbits. D) Earth-mass, in very close orbits. E) a wide range of masses, in edge-on orbits. Answer: C Current techniques can measure stellar motion to less than A) walking speed. B) running sp ...
Origin of Our Solar System
... accretion in our solar system. The total time frame for the process is about 441 million years. There were as many as 11 inner planetesimals after 79 million years, and six after 151 million years. Suggestions are that the Earth accreted in about 100 million years. ...
... accretion in our solar system. The total time frame for the process is about 441 million years. There were as many as 11 inner planetesimals after 79 million years, and six after 151 million years. Suggestions are that the Earth accreted in about 100 million years. ...
Astronomy and Humanism by Ray Thompson A. EARLY
... obtained and it became clear just how enormous the universe was! This brings us to Edwin Hubble of Mount Wilson Observatory who concentrated on determining the distances to numerous galaxies using Henrietta's discovery. However, he made one further discovery in 1924. Using spectroscopy (introduced, ...
... obtained and it became clear just how enormous the universe was! This brings us to Edwin Hubble of Mount Wilson Observatory who concentrated on determining the distances to numerous galaxies using Henrietta's discovery. However, he made one further discovery in 1924. Using spectroscopy (introduced, ...
Wednesday, March 26 - Otterbein University
... • Not a lot of liquid water on surface initially • CO2 could not be absorbed by water, rocks because of higher temperatures • run-away Greenhouse effect: it’s hot, the greenhouse gases can’t be be stored away, it gets hotter … ...
... • Not a lot of liquid water on surface initially • CO2 could not be absorbed by water, rocks because of higher temperatures • run-away Greenhouse effect: it’s hot, the greenhouse gases can’t be be stored away, it gets hotter … ...
Planetary Science
... Observations of the Solar system finds: ◦ Inner planets close in space ◦ All planets orbiting the Sun in the same direction, and more or less in the same plane ◦ Sun rotates in the same direction as the planets orbit ...
... Observations of the Solar system finds: ◦ Inner planets close in space ◦ All planets orbiting the Sun in the same direction, and more or less in the same plane ◦ Sun rotates in the same direction as the planets orbit ...
Quiz # 1 - Tue 09/15/2011
... 2. From the smallest to the largest, the correct order of the following objects is: A. Earth’s orbit, Jupiter, Milky Way Galaxy, Solar System B. Earth’ orbit, Milky Way Galaxy, Solar System, Jupiter C. Solar System, Earth’s orbit, Milky Way Galaxy, Jupiter D. Milky Way Galaxy, Jupiter, Earth’s orbit ...
... 2. From the smallest to the largest, the correct order of the following objects is: A. Earth’s orbit, Jupiter, Milky Way Galaxy, Solar System B. Earth’ orbit, Milky Way Galaxy, Solar System, Jupiter C. Solar System, Earth’s orbit, Milky Way Galaxy, Jupiter D. Milky Way Galaxy, Jupiter, Earth’s orbit ...
ASTR101 Unit 10 Assessment Answer Key 1. Mass, luminosity, size
... 1. Mass, luminosity, size, surface temperature, and age. Ordinary stars range in mass from about 60 solar masses to about 1/12 solar mass, in luminosity from about 1,000,000 to 1/10,000 solar luminosities, in radius from about 1,000 to 1/10 solar radii, in surface temperature from about 35,000 to 3, ...
... 1. Mass, luminosity, size, surface temperature, and age. Ordinary stars range in mass from about 60 solar masses to about 1/12 solar mass, in luminosity from about 1,000,000 to 1/10,000 solar luminosities, in radius from about 1,000 to 1/10 solar radii, in surface temperature from about 35,000 to 3, ...
Astronomy Comprehensive Test
... 31. Which planet is often called "Earth's twin" because it is similar in mass and diameter to the Earth? _________________________ 32. What process has occurred when atoms combine to form a new element and release energy? ____________________ 33. What is the approximate percentage of the Earth that ...
... 31. Which planet is often called "Earth's twin" because it is similar in mass and diameter to the Earth? _________________________ 32. What process has occurred when atoms combine to form a new element and release energy? ____________________ 33. What is the approximate percentage of the Earth that ...
Other Solar Systems Around Other Stars
... Data so far implies half or more of all solar-type stars have solar systems Most planets in very elliptical orbits, migration induced most likely Stars with solar systems are very preferentially those with higher metallicity (i.e. made from proto-stellar clouds with enhanced dust) Most easily detect ...
... Data so far implies half or more of all solar-type stars have solar systems Most planets in very elliptical orbits, migration induced most likely Stars with solar systems are very preferentially those with higher metallicity (i.e. made from proto-stellar clouds with enhanced dust) Most easily detect ...
PowerPoint
... The first eon of Earth’s history, from about 4.5 to 3.8 billion years ago, is named the hadean after hades, the Greek word for hell because of the intense heat on Earth. Most original rock from this period was melted and recycled into Earth’s crust, so very few samples remain from our planet’s forma ...
... The first eon of Earth’s history, from about 4.5 to 3.8 billion years ago, is named the hadean after hades, the Greek word for hell because of the intense heat on Earth. Most original rock from this period was melted and recycled into Earth’s crust, so very few samples remain from our planet’s forma ...
Astronomy Unit Test – Chapter 21
... 23. What category of star is Sirius B? 24. Which giant is the brightest? 25. Predict what will happen when the sun runs out of fuel. 26. What is used to classify stars? 27. At which phase of the moon could a solar eclipse occur? 28. A star is twice as massive as the sun. How will its lifespan compa ...
... 23. What category of star is Sirius B? 24. Which giant is the brightest? 25. Predict what will happen when the sun runs out of fuel. 26. What is used to classify stars? 27. At which phase of the moon could a solar eclipse occur? 28. A star is twice as massive as the sun. How will its lifespan compa ...
Pythagoras Eudoxus of Cnidus Aristotle Eratosthenes Hipparchus
... study science in several universities. In 1572, Brahe discovered a nova (a star that becomes very bright then fades in a few months or years) and five comets that were beyond the Moon’s orbit. His findings did not agree with either Ptolemy or Copernicus so Brahe developed his own theory called the T ...
... study science in several universities. In 1572, Brahe discovered a nova (a star that becomes very bright then fades in a few months or years) and five comets that were beyond the Moon’s orbit. His findings did not agree with either Ptolemy or Copernicus so Brahe developed his own theory called the T ...
Rocket Science
... discouraged by PBIS, as it may result in little or no monetary gain after secondary education or a fine of $250,000. ...
... discouraged by PBIS, as it may result in little or no monetary gain after secondary education or a fine of $250,000. ...
The Solar System
... • Clouds on Venus are so dense only a small percentage of sunlight that strikes the top of the clouds reaches the surface. • Much of the heat is absorbed by carbon dioxide in the atmosphere. • Water vapor and later carbon dioxide in the atmosphere created a greenhouse and made the planet very hot (4 ...
... • Clouds on Venus are so dense only a small percentage of sunlight that strikes the top of the clouds reaches the surface. • Much of the heat is absorbed by carbon dioxide in the atmosphere. • Water vapor and later carbon dioxide in the atmosphere created a greenhouse and made the planet very hot (4 ...
Astronomy Final Study Guide - With Answers!!– Name: **This will be
... and elliptical galaxies are older galaxies that do not have very much gas or dust, so they do not create new stars very often. Approximately how many galaxies are there? How many stars are in a galaxy? Scientists estimate that there are billions of galaxies in the Universe! In each galaxy, there are ...
... and elliptical galaxies are older galaxies that do not have very much gas or dust, so they do not create new stars very often. Approximately how many galaxies are there? How many stars are in a galaxy? Scientists estimate that there are billions of galaxies in the Universe! In each galaxy, there are ...
Extrasolar planets Topics to be covered Planets and brown dwarfs
... • For a planet to be Earth-like in the sense of having life, it likely must have a “moderate temperature” – liquid water – organic molecules stable – energy available • Ignoring geothermal heat, this likely means an appropriate distance from its parent star ...
... • For a planet to be Earth-like in the sense of having life, it likely must have a “moderate temperature” – liquid water – organic molecules stable – energy available • Ignoring geothermal heat, this likely means an appropriate distance from its parent star ...
the lab handout here
... Which of the stars you plotted was the brightest? ____________ hottest? ____________ ...
... Which of the stars you plotted was the brightest? ____________ hottest? ____________ ...
1.1 Organization of the Universe
... Catalyst review Homework review Organization of the universe ...
... Catalyst review Homework review Organization of the universe ...
Astronomy 2
... Star Brightness luminosity – depends on size & temperature apparent magnitude – as seen from Earth: brightest are ≤ 1 faintest are ≥ 6 absolute magnitude – expresses luminosity of stars as if they were all seen 32.6 lightyears from Earth (our sun = 4.8) ...
... Star Brightness luminosity – depends on size & temperature apparent magnitude – as seen from Earth: brightest are ≤ 1 faintest are ≥ 6 absolute magnitude – expresses luminosity of stars as if they were all seen 32.6 lightyears from Earth (our sun = 4.8) ...
Formation of the Solar System • Questions
... of formation of solar system. • Primitive meteorites have very narrow range of ...
... of formation of solar system. • Primitive meteorites have very narrow range of ...
Universal Gravitation
... The paths of the planets are ellipses with the sun at one focus. Planets move faster when they are closer to the sun. The square of the ratio of the periods of any two planets revolving about the sun ( TA/TB )2, is equal to the cube of the ratio of their average distances from the sun ( RA/RB)3. ...
... The paths of the planets are ellipses with the sun at one focus. Planets move faster when they are closer to the sun. The square of the ratio of the periods of any two planets revolving about the sun ( TA/TB )2, is equal to the cube of the ratio of their average distances from the sun ( RA/RB)3. ...
Astronomy Unit Test – Chapter 21
... 31. Create a flow-map that properly sequences the formation of the solar system? solar nebula forms, nuclear fusion begins in the sun, planetesimals form, planets form 32. A group of stars that form patterns in the sky is called constellation. 33. To express the distance between the Milky Way galaxy ...
... 31. Create a flow-map that properly sequences the formation of the solar system? solar nebula forms, nuclear fusion begins in the sun, planetesimals form, planets form 32. A group of stars that form patterns in the sky is called constellation. 33. To express the distance between the Milky Way galaxy ...
Planetary habitability
Planetary habitability is the measure of a planet's or a natural satellite's potential to develop and sustain life. Life may develop directly on a planet or satellite or be transferred to it from another body, a theoretical process known as panspermia. As the existence of life beyond Earth is unknown, planetary habitability is largely an extrapolation of conditions on Earth and the characteristics of the Sun and Solar System which appear favourable to life's flourishing—in particular those factors that have sustained complex, multicellular organisms and not just simpler, unicellular creatures. Research and theory in this regard is a component of planetary science and the emerging discipline of astrobiology.An absolute requirement for life is an energy source, and the notion of planetary habitability implies that many other geophysical, geochemical, and astrophysical criteria must be met before an astronomical body can support life. In its astrobiology roadmap, NASA has defined the principal habitability criteria as ""extended regions of liquid water, conditions favourable for the assembly of complex organic molecules, and energy sources to sustain metabolism.""In determining the habitability potential of a body, studies focus on its bulk composition, orbital properties, atmosphere, and potential chemical interactions. Stellar characteristics of importance include mass and luminosity, stable variability, and high metallicity. Rocky, terrestrial-type planets and moons with the potential for Earth-like chemistry are a primary focus of astrobiological research, although more speculative habitability theories occasionally examine alternative biochemistries and other types of astronomical bodies.The idea that planets beyond Earth might host life is an ancient one, though historically it was framed by philosophy as much as physical science. The late 20th century saw two breakthroughs in the field. The observation and robotic spacecraft exploration of other planets and moons within the Solar System has provided critical information on defining habitability criteria and allowed for substantial geophysical comparisons between the Earth and other bodies. The discovery of extrasolar planets, beginning in the early 1990s and accelerating thereafter, has provided further information for the study of possible extraterrestrial life. These findings confirm that the Sun is not unique among stars in hosting planets and expands the habitability research horizon beyond the Solar System.The chemistry of life may have begun shortly after the Big Bang, 13.8 billion years ago, during a habitable epoch when the Universe was only 10–17 million years old. According to the panspermia hypothesis, microscopic life—distributed by meteoroids, asteroids and other small Solar System bodies—may exist throughout the universe. Nonetheless, Earth is the only place in the universe known to harbor life. Estimates of habitable zones around other stars, along with the discovery of hundreds of extrasolar planets and new insights into the extreme habitats here on Earth, suggest that there may be many more habitable places in the universe than considered possible until very recently. On 4 November 2013, astronomers reported, based on Kepler space mission data, that there could be as many as 40 billion Earth-sized planets orbiting in the habitable zones of Sun-like stars and red dwarfs within the Milky Way. 11 billion of these estimated planets may be orbiting Sun-like stars. The nearest such planet may be 12 light-years away, according to the scientists.