Planets and Stars Differences and Similarities
... In our Solar System there are 8 planets Mercury. Venus, Earth, Mars, Jupiter, Uranus, and Neptune. Theses planets in some ways are very similar to the stars but in other way they might be more different then you might think. In our solar system we have planets that are big but not as big as the star ...
... In our Solar System there are 8 planets Mercury. Venus, Earth, Mars, Jupiter, Uranus, and Neptune. Theses planets in some ways are very similar to the stars but in other way they might be more different then you might think. In our solar system we have planets that are big but not as big as the star ...
Chapter 4 Chapter 4 - The Solar System The Solar System
... Three asteroids hit the Earth every 1 million years! ...
... Three asteroids hit the Earth every 1 million years! ...
Types of Planets and Stars
... Main Sequence Stars -- make up the majority of stars in the universe. Earth’s sun is a main sequence star. These stars vary in size, mass, and brightness, but they all convert hydrogen into helium, also known as nuclear fusion. While our sun will spend 10 billion on its main sequence, a star ten t ...
... Main Sequence Stars -- make up the majority of stars in the universe. Earth’s sun is a main sequence star. These stars vary in size, mass, and brightness, but they all convert hydrogen into helium, also known as nuclear fusion. While our sun will spend 10 billion on its main sequence, a star ten t ...
Chapter 1 The Copernican Revolution
... Retrograde motion of Mars in the year 2003 All the planet outside the Earth’s orbit (Mars, Jupiter, Saturn, Uranus and Neptune) behave in the same way The inner planets (Mercury and Venus) do something similar but the loops are around the position of the Sun ...
... Retrograde motion of Mars in the year 2003 All the planet outside the Earth’s orbit (Mars, Jupiter, Saturn, Uranus and Neptune) behave in the same way The inner planets (Mercury and Venus) do something similar but the loops are around the position of the Sun ...
Paul Lunn: Sonification Techniques for Astronomical Data Exploration
... N = number of advanced technological civilisations R = number of new stars formed each year fp = fraction of stars with planets ne = Number of planets that can support life fl = fraction of planets which have life fi = fraction of planets where life is intelligent fc = fraction of planets where life ...
... N = number of advanced technological civilisations R = number of new stars formed each year fp = fraction of stars with planets ne = Number of planets that can support life fl = fraction of planets which have life fi = fraction of planets where life is intelligent fc = fraction of planets where life ...
Astrobiology: The Search for Extraterrestrial Life
... that life should be present on other planets with similar characteristic to Earth-like organisms. Currently, there are several different projects aimed at detecting Earth-like exoplanets, including NASAs Terrestrial Planet Finder (TPF: recently canceled) and Kepler, launched in 2009. The goal of the ...
... that life should be present on other planets with similar characteristic to Earth-like organisms. Currently, there are several different projects aimed at detecting Earth-like exoplanets, including NASAs Terrestrial Planet Finder (TPF: recently canceled) and Kepler, launched in 2009. The goal of the ...
Lecture 3
... arcminute) naked eye measurements ever made of planetary positions. • Still could not detect stellar 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 pl ...
... arcminute) naked eye measurements ever made of planetary positions. • Still could not detect stellar 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 pl ...
Lesson Plan for "Our Solar System: The Planets"
... How have scientists learned about the solar system? First, they looked up with the unaided eye at night and observed the planets. For a better view, scientists looked through telescopes and saw the rings of Saturn, the Great Red Spot of Jupiter, and the thick clouds of Venus. However, the images off ...
... How have scientists learned about the solar system? First, they looked up with the unaided eye at night and observed the planets. For a better view, scientists looked through telescopes and saw the rings of Saturn, the Great Red Spot of Jupiter, and the thick clouds of Venus. However, the images off ...
View Professor Thaler`s presentation slides
... many measurements. That requires short-period orbits. The planet must be close to the star. ...
... many measurements. That requires short-period orbits. The planet must be close to the star. ...
Day 3
... planetary positions. • Still could not detect stellar 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) ...
... planetary positions. • Still could not detect stellar 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) ...
Are Earth-like exoplanets common?
... number of lensing events at any given time of some baseline magnitude. ...
... number of lensing events at any given time of some baseline magnitude. ...
NOVA: Hunting the Edge of Space
... 5. What is the amazing thing that the telescopes of this mission do? ...
... 5. What is the amazing thing that the telescopes of this mission do? ...
Exoplanets - An ESO/OPTICON/IAU summer school on modern
... 1./ A very few scientists and philosophers in the ancient times and middle-ages : planets may be / should be existing orbiting other stars than Sun. 2./ Struve (1952) proposes the transit-method. 3./ 1989: an exoplanet suspected first time by RV-method (many ...
... 1./ A very few scientists and philosophers in the ancient times and middle-ages : planets may be / should be existing orbiting other stars than Sun. 2./ Struve (1952) proposes the transit-method. 3./ 1989: an exoplanet suspected first time by RV-method (many ...
Extra-Solar Planets
... • 1) From the peak velocity of the star – when it is coming towards us or going away from us - and the period of the oscillation we can calculate the circumference of the orbit of the star and hence its distance from the centre of mass of the ...
... • 1) From the peak velocity of the star – when it is coming towards us or going away from us - and the period of the oscillation we can calculate the circumference of the orbit of the star and hence its distance from the centre of mass of the ...
Lecture #4 - History of Astronomy - Ptolemy to Kepler
... Developed a Heliocentric (Sun centered) model of the cosmos Why? Ptolemy’s geocentric model lasted for centuries mainly because it accurately predicted celestial motions so there was little reason to discard it Copernicus studied the works of Aristotle, ...
... Developed a Heliocentric (Sun centered) model of the cosmos Why? Ptolemy’s geocentric model lasted for centuries mainly because it accurately predicted celestial motions so there was little reason to discard it Copernicus studied the works of Aristotle, ...
7.4 Meet Your Solar System
... • I can differentiate between the geocentric and heliocentric models of the solar system. • I can describe retrograde motion and ...
... • I can differentiate between the geocentric and heliocentric models of the solar system. • I can describe retrograde motion and ...
Classifying the Solar System
... 1. Classify each of the eight planets using these criteria: Its orbit in relation to Earth Inferior (between Earth & Sun) Superior (farther away from the Sun than the Earth). The make-up of its surface Rocky (Terrestrial) Gas (Jovian) Its size or diameter Giant (larger than Earth) ...
... 1. Classify each of the eight planets using these criteria: Its orbit in relation to Earth Inferior (between Earth & Sun) Superior (farther away from the Sun than the Earth). The make-up of its surface Rocky (Terrestrial) Gas (Jovian) Its size or diameter Giant (larger than Earth) ...
Nearest star`s wobbles could reveal Earth`s twin
... What's more, any such planets might boast the conditions thought to be necessary to support life. In the team's simulations of planet formation around the smaller star, Alpha Centauri B, an Earth-like world often coalesced in or near the star's habitable zone, where liquid water could exist on the p ...
... What's more, any such planets might boast the conditions thought to be necessary to support life. In the team's simulations of planet formation around the smaller star, Alpha Centauri B, an Earth-like world often coalesced in or near the star's habitable zone, where liquid water could exist on the p ...
Why SETI will Fail
... civilizations will build the equivalent of TPF. 2) Intelligent life is curious about other life forms, simple or technological. 3) Having used TPF to discover a nearby “living world”, spaceships will be constructed to visit that world. ...
... civilizations will build the equivalent of TPF. 2) Intelligent life is curious about other life forms, simple or technological. 3) Having used TPF to discover a nearby “living world”, spaceships will be constructed to visit that world. ...
Eratosthenes - Allendale School
... change in position of an object when viewed from two different locations. (Your two eyes are in two different locations!) Try a little experiment to find out if parallax increases or decreases with distance. Astronomers figured that if the Earth were traveling around the sun, then the stars would ap ...
... change in position of an object when viewed from two different locations. (Your two eyes are in two different locations!) Try a little experiment to find out if parallax increases or decreases with distance. Astronomers figured that if the Earth were traveling around the sun, then the stars would ap ...
The First Thousand Exoplanets
... variation is inversely proportional to the square root of the orbital distance and proportional to the planet mass times the sin of the inclination angle of the orbit. Because of the uncertainty in inclination, a minimum mass is measured and for any sample of planet systems at random orientations t ...
... variation is inversely proportional to the square root of the orbital distance and proportional to the planet mass times the sin of the inclination angle of the orbit. Because of the uncertainty in inclination, a minimum mass is measured and for any sample of planet systems at random orientations t ...
Transits
... • Primary transit is when the planet passes in front of the star • The planet appears larger or smaller at different wavelengths depending on how strongly the atmosphere absorbs • Hence, the transit appears deeper at wavelengths that are strongly absorbed, allowing one to form a crude spectrum ...
... • Primary transit is when the planet passes in front of the star • The planet appears larger or smaller at different wavelengths depending on how strongly the atmosphere absorbs • Hence, the transit appears deeper at wavelengths that are strongly absorbed, allowing one to form a crude spectrum ...
Carter K 1 - Mrs. Anthony`s English 2
... the fraction of stars with planetary systems. A planetary system is like what we have, planets orbiting the sun due to its gravitational pull, and the sun gives our planet life, which means it is giving those planets around it life as well. N is the number of planets per solar system that are suitab ...
... the fraction of stars with planetary systems. A planetary system is like what we have, planets orbiting the sun due to its gravitational pull, and the sun gives our planet life, which means it is giving those planets around it life as well. N is the number of planets per solar system that are suitab ...
Kepler`s Laws, Newton`s Laws, and the Search for New Planets
... First, the two-body problem applies not only to planets around stars, but also to the motion of binary stars, which are very abundant and also very important in astronomy. In that case, it would be totally incorrect to assume that either one is fixed, but the correct treatment of the earth-sun motio ...
... First, the two-body problem applies not only to planets around stars, but also to the motion of binary stars, which are very abundant and also very important in astronomy. In that case, it would be totally incorrect to assume that either one is fixed, but the correct treatment of the earth-sun motio ...
Summary of the Presentation
... (assuming a constant production rate) eliminating 2/3 as being too young, the value of R was estimated to be ~85,000 suitable stars per billion cubic light years. Of the stars examined for planets, planets have been found around only ~12%. As the ability to detect small planets improves, a larger pe ...
... (assuming a constant production rate) eliminating 2/3 as being too young, the value of R was estimated to be ~85,000 suitable stars per billion cubic light years. Of the stars examined for planets, planets have been found around only ~12%. As the ability to detect small planets improves, a larger pe ...
Kepler (spacecraft)
Kepler is a space observatory launched by NASA to discover Earth-like planets orbiting other stars. The spacecraft, named after the German Renaissance astronomer Johannes Kepler, was launched on March 7, 2009.Designed to survey a portion of our region of the Milky Way to discover dozens of Earth-size extrasolar planets in or near the habitable zone and estimate how many of the billions of stars in the Milky Way have such planets, Kepler's sole instrument is a photometer that continually monitors the brightness of over 145,000 main sequence stars in a fixed field of view. This data is transmitted to Earth, then analyzed to detect periodic dimming caused by extrasolar planets that cross in front of their host star.Kepler is part of NASA's Discovery Program of relatively low-cost, focused primary science missions. The telescope's construction and initial operation were managed by NASA's Jet Propulsion Laboratory, with Ball Aerospace responsible for developing the Kepler flight system. The Ames Research Center is responsible for the ground system development, mission operations since December 2009, and scientific data analysis. The initial planned lifetime was 3.5 years, but greater-than-expected noise in the data, from both the stars and the spacecraft, meant additional time was needed to fulfill all mission goals. Initially, in 2012, the mission was expected to last until 2016, but this would only have been possible if all remaining reaction wheels used for pointing the spacecraft remained reliable. On May 11, 2013, a second of four reaction wheels failed, disabling the collection of science data and threatening the continuation of the mission.On August 15, 2013, NASA announced that they had given up trying to fix the two failed reaction wheels. This meant the current mission needed to be modified, but it did not necessarily mean the end of planet-hunting. NASA had asked the space science community to propose alternative mission plans ""potentially including an exoplanet search, using the remaining two good reaction wheels and thrusters"". On November 18, 2013, the K2 ""Second Light"" proposal was reported. This would include utilizing the disabled Kepler in a way that could detect habitable planets around smaller, dimmer red dwarfs. On May 16, 2014, NASA announced the approval of the K2 extension.As of January 2015, Kepler and its follow-up observations had found 1,013 confirmed exoplanets in about 440 stellar systems, along with a further 3,199 unconfirmed planet candidates. Four planets have been confirmed through Kepler 's K2 mission. In 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. It is estimated that 11 billion of these planets may be orbiting Sun-like stars. The nearest such planet may be 3.7 parsecs (12 ly) away, according to the scientists.On January 6, 2015, NASA announced the 1000th confirmed exoplanet discovered by the Kepler Space Telescope. Four of the newly confirmed exoplanets were found to orbit within habitable zones of their related stars: three of the four, Kepler-438b, Kepler-442b and Kepler-452b, are near-Earth-size and likely rocky; the fourth, Kepler-440b, is a super-Earth.