spring_2002_final - University of Maryland Astronomy
... E. its surface temperature. 37. Both the largest and the smallest galaxies are classified as A. normal spirals. B. barred spirals. C. quasars. D. pulsars. E. ellipticals. 38. Galileo's telescopic observations provided support for the A. Big Bang theory. B. protoplanet theory. C. geocentric theory. D ...
... E. its surface temperature. 37. Both the largest and the smallest galaxies are classified as A. normal spirals. B. barred spirals. C. quasars. D. pulsars. E. ellipticals. 38. Galileo's telescopic observations provided support for the A. Big Bang theory. B. protoplanet theory. C. geocentric theory. D ...
Chapter 8
... orbits, with the Sun at one focus • 2. The law of areas: A line that connects the planet to the Sun sweeps out equal areas in the plane of the planet’s orbit in equal time intervals • 3. The law of periods: The square of the period of any planet is proportional to the cube of the semimajor axis of i ...
... orbits, with the Sun at one focus • 2. The law of areas: A line that connects the planet to the Sun sweeps out equal areas in the plane of the planet’s orbit in equal time intervals • 3. The law of periods: The square of the period of any planet is proportional to the cube of the semimajor axis of i ...
Models of the Solar System
... planets are perfect spheres circling in perfect circular orbits. • They believed the Earth was the most important object in space and therefore assumed it to be the center of the universe. ...
... planets are perfect spheres circling in perfect circular orbits. • They believed the Earth was the most important object in space and therefore assumed it to be the center of the universe. ...
Of Orbs and Orbits
... 1959; the next, involving the same two objects, not until 2044.) The passage of one planet in front of another is even more rare—only 11 have occurred since the invention of the telescope, and of all those, only one was actually observed, by John Bevis (1693/1695–1771), who watched Venus occult Merc ...
... 1959; the next, involving the same two objects, not until 2044.) The passage of one planet in front of another is even more rare—only 11 have occurred since the invention of the telescope, and of all those, only one was actually observed, by John Bevis (1693/1695–1771), who watched Venus occult Merc ...
Introduction to Basic Stargazing Part II - Naples Free-Net
... inclined, in popular news media. More commonly among professionals and hobbyists is the astronomical unit (au) – one au is defined as the average distance from Earth to the Sun. There are two reasons for this; 1. It greatly improves computational ease of raw data. 2. It improves comprehension of rel ...
... inclined, in popular news media. More commonly among professionals and hobbyists is the astronomical unit (au) – one au is defined as the average distance from Earth to the Sun. There are two reasons for this; 1. It greatly improves computational ease of raw data. 2. It improves comprehension of rel ...
The mass of the Moon is 1/81 of the mass of the Earth. Compared to
... A planet (P) is moving around the Sun (S) in an elliptical orbit. As the planet moves from aphelion to perihelion, the Sun’s gravitational force A. does positive work on the planet. B. does negative work on the planet. C. does positive work on the planet during part of the motion and negative work d ...
... A planet (P) is moving around the Sun (S) in an elliptical orbit. As the planet moves from aphelion to perihelion, the Sun’s gravitational force A. does positive work on the planet. B. does negative work on the planet. C. does positive work on the planet during part of the motion and negative work d ...
The mass of the Moon is 1/81 of the mass of the Earth. Compared to
... Compared to the Earth, Planet X has twice the mass and twice the radius. This means that compared to the amount of energy required to move an object from the Earth’s surface to infinity, the amount of energy required to move that same object from Planet X’s surface to infinity is A. 4 times as much. ...
... Compared to the Earth, Planet X has twice the mass and twice the radius. This means that compared to the amount of energy required to move an object from the Earth’s surface to infinity, the amount of energy required to move that same object from Planet X’s surface to infinity is A. 4 times as much. ...
Renaissance Astronomy - Faculty Web Sites at the University of
... planet...arranged exactly in a straight line... When I turned again to look [a few nights later]... I found a very different state of things. I therefore concluded... that there are three stars in the heavens moving about Jupiter, as Venus and Mercury around the Sun. ...
... planet...arranged exactly in a straight line... When I turned again to look [a few nights later]... I found a very different state of things. I therefore concluded... that there are three stars in the heavens moving about Jupiter, as Venus and Mercury around the Sun. ...
speed
... Compared to the Earth, Planet X has twice the mass and twice the radius. This means that compared to the amount of energy required to move an object from the Earth’s surface to infinity, the amount of energy required to move that same object from Planet X’s surface to infinity is A. 4 times as much. ...
... Compared to the Earth, Planet X has twice the mass and twice the radius. This means that compared to the amount of energy required to move an object from the Earth’s surface to infinity, the amount of energy required to move that same object from Planet X’s surface to infinity is A. 4 times as much. ...
Solar System
... Jupiter in 1979, it took images of the planet at regular intervals. This sequence is made from 66 images taken once every Jupiter rotation period (about 10 hours). This time-lapse movie uses images taken every time Jupiter ...
... Jupiter in 1979, it took images of the planet at regular intervals. This sequence is made from 66 images taken once every Jupiter rotation period (about 10 hours). This time-lapse movie uses images taken every time Jupiter ...
Research Paper Trojans in Habitable Zones
... that illustrates how the size of the stable region and the value of emax depends on eini. HD27442 is a K2IVa star with 1.2 solar masses. The GG (Table 3) of the system, with a mass of 1.28 MJupiter, orbits the central star at a 1.18 AU on an almost circular orbit (e 0.07). The orbital behavior o ...
... that illustrates how the size of the stable region and the value of emax depends on eini. HD27442 is a K2IVa star with 1.2 solar masses. The GG (Table 3) of the system, with a mass of 1.28 MJupiter, orbits the central star at a 1.18 AU on an almost circular orbit (e 0.07). The orbital behavior o ...
Session Two - A Sidewalk Astronomer in Charlottetown
... ◦ Planets in the solar system all travel in orbits in roughly the same plane. They are never too far from the plane of the ecliptic. The 5 classic naked eye planets (Mercury, Venus, Mars, Jupiter, Saturn) will always stand out as a bright star. ...
... ◦ Planets in the solar system all travel in orbits in roughly the same plane. They are never too far from the plane of the ecliptic. The 5 classic naked eye planets (Mercury, Venus, Mars, Jupiter, Saturn) will always stand out as a bright star. ...
Greek Astronomy
... Luther has proposed radical revisions in Christianity • The present PARADIGM (or prevailing scientific theory) is a way of seeing the universe around us. Questions, research and interpretation of results is all in the context of this theory. Viewing the universe in any other way requires a complete ...
... Luther has proposed radical revisions in Christianity • The present PARADIGM (or prevailing scientific theory) is a way of seeing the universe around us. Questions, research and interpretation of results is all in the context of this theory. Viewing the universe in any other way requires a complete ...
Powerpoint - BU Imaging Science
... • In 1572 Tycho saw a new star in the night sky. It was as bright as Jupiter, soon became as bright as Venus, and even became bright enough to see during the day for two weeks. As it dimmed, it went from white to yellow to orange to red. It was visible in the night sky for over one year • Tycho saw ...
... • In 1572 Tycho saw a new star in the night sky. It was as bright as Jupiter, soon became as bright as Venus, and even became bright enough to see during the day for two weeks. As it dimmed, it went from white to yellow to orange to red. It was visible in the night sky for over one year • Tycho saw ...
Gravity Kepler`s Laws - historical remarks - UW
... Kepler had access to very good data from the astronomer Tycho Brahe in Prague. See table for today’s data. After many years of work Kepler found an intriguing correlation between the orbital periods and the length of the semimajor axis of orbits. ...
... Kepler had access to very good data from the astronomer Tycho Brahe in Prague. See table for today’s data. After many years of work Kepler found an intriguing correlation between the orbital periods and the length of the semimajor axis of orbits. ...
Formation of the Solar System
... toward the centre. In a dark rural sky less than 3000 stars are visible to the naked eye, but the Milky Way galaxy contains billions of stars. These stars often form in clusters, when a large interstellar cloud collapses and fragments into several smaller protostars. It is believed that many stars h ...
... toward the centre. In a dark rural sky less than 3000 stars are visible to the naked eye, but the Milky Way galaxy contains billions of stars. These stars often form in clusters, when a large interstellar cloud collapses and fragments into several smaller protostars. It is believed that many stars h ...
Study Guide 2 - Otterbein University
... system, and describe why his model cannot reproduce this pattern in the sky. Warm-up #14: based on Section 1.3. “The Laws of Planetary Motion” 1. In what way is an ellipse the generalization of a circle? 2. Did Kepler succeed in finding the distance to the Sun? Why or why not? Warm-up #15: based on ...
... system, and describe why his model cannot reproduce this pattern in the sky. Warm-up #14: based on Section 1.3. “The Laws of Planetary Motion” 1. In what way is an ellipse the generalization of a circle? 2. Did Kepler succeed in finding the distance to the Sun? Why or why not? Warm-up #15: based on ...
Exam 1 Monday, September 22nd, Chs 1-3
... same time after the Big Bang, which galaxy appears to us as the youngest? A) the galaxy that appears bluest to us B) the galaxy that is furthest from us C) the galaxy that appears largest to us D) the galaxy that is closest to us E) All galaxies would appear to have the same age. ...
... same time after the Big Bang, which galaxy appears to us as the youngest? A) the galaxy that appears bluest to us B) the galaxy that is furthest from us C) the galaxy that appears largest to us D) the galaxy that is closest to us E) All galaxies would appear to have the same age. ...
MS Word version
... Question 5: If a planet is twice as far from the sun at aphelion than at perihelion then the strength of the gravitational force at aphelion will be… a) will be half as much than it is at perihelion. b) twice as much than it is at perihelion. c) four times less than it is at perihelion. d) the same ...
... Question 5: If a planet is twice as far from the sun at aphelion than at perihelion then the strength of the gravitational force at aphelion will be… a) will be half as much than it is at perihelion. b) twice as much than it is at perihelion. c) four times less than it is at perihelion. d) the same ...
Astronomy Club of Asheville May 2016 Sky Events
... The planet Saturn can be found late night this month – rising at 10:45 p.m. EDT on May 1st and at 8:38 p.m. EDT on May 31st. So good telescopic views of Saturn will be a late night affair this month. Saturn reaches opposition – closest position to Earth for the year on June 3rd. Venus, Uranus an ...
... The planet Saturn can be found late night this month – rising at 10:45 p.m. EDT on May 1st and at 8:38 p.m. EDT on May 31st. So good telescopic views of Saturn will be a late night affair this month. Saturn reaches opposition – closest position to Earth for the year on June 3rd. Venus, Uranus an ...
Lecture #33: Solar System Origin I The Main Point What is a
... – A large comet collided with the Sun and ejected material that cooled to form the planets [Buffon, 1745]. – Another star made a close pass by the Sun, tidally pulling material out that cooled to form the planets [Bickerton, ...
... – A large comet collided with the Sun and ejected material that cooled to form the planets [Buffon, 1745]. – Another star made a close pass by the Sun, tidally pulling material out that cooled to form the planets [Bickerton, ...
Gravitation
... A satellite is moving around the Earth in a circular orbit. Over the course of an orbit, the Earth’s gravitational force 1. does positive work on the satellite 2. does negative work on the satellite 3. does positive work on the satellite during part of the orbit and negative work on the satellite du ...
... A satellite is moving around the Earth in a circular orbit. Over the course of an orbit, the Earth’s gravitational force 1. does positive work on the satellite 2. does negative work on the satellite 3. does positive work on the satellite during part of the orbit and negative work on the satellite du ...
MAUI STARGAZING MAY OBSERVING LIST DEEP SPACE
... An open cluster is a group of up to a few thousand stars that were formed from the same giant molecular cloud and have roughly the same age. BINARY or DOUBLE STAR SYSTEMS A binary star is a star system consisting of two stars orbiting around their common center. CASINI DIVISION A 3000-mile (4800-km) ...
... An open cluster is a group of up to a few thousand stars that were formed from the same giant molecular cloud and have roughly the same age. BINARY or DOUBLE STAR SYSTEMS A binary star is a star system consisting of two stars orbiting around their common center. CASINI DIVISION A 3000-mile (4800-km) ...
AGU Fall 2011 SH34B-08
... Jupiter’ with mass 3MJ and at 0.052 AU would have a tidal effect 4*1003 = 4,000,000 times larger than our Jupiter’s [τ Boo]. HD 168443, with the innermost planet at 0.3 AU, has a dL/dt, with a periodicity of 58 d, that exceeds by more than five orders of magnitude that of the Sun. If orbital angular ...
... Jupiter’ with mass 3MJ and at 0.052 AU would have a tidal effect 4*1003 = 4,000,000 times larger than our Jupiter’s [τ Boo]. HD 168443, with the innermost planet at 0.3 AU, has a dL/dt, with a periodicity of 58 d, that exceeds by more than five orders of magnitude that of the Sun. If orbital angular ...
Year 6 Space Newsletter
... When they are sighted they do seem such peculiar things! Although many strange things have been recorded, such as crop circles, they are not necessarily aliens. When more than one is sighted they have been known to make a triangular shape. Another strange thing is that they can be all different shap ...
... When they are sighted they do seem such peculiar things! Although many strange things have been recorded, such as crop circles, they are not necessarily aliens. When more than one is sighted they have been known to make a triangular shape. Another strange thing is that they can be all different shap ...
IAU definition of planet
The definition of planet set in Prague in 2006 by the International Astronomical Union (IAU) states that, in the Solar System, a planet is a celestial body which: is in orbit around the Sun, has sufficient mass to assume hydrostatic equilibrium (a nearly round shape), and has ""cleared the neighborhood"" around its orbit.A non-satellite body fulfilling only the first two of these criteria is classified as a ""dwarf planet"". According to the IAU, ""planets and dwarf planets are two distinct classes of objects"". A non-satellite body fulfilling only the first criterion is termed a ""small Solar System body"" (SSSB). Initial drafts planned to include dwarf planets as a subcategory of planets, but because this could potentially have led to the addition of several dozens of planets into the Solar System, this draft was eventually dropped. The definition was a controversial one and has drawn both support and criticism from different astronomers, but has remained in use.According to this definition, there are eight planets in the Solar System. The definition distinguishes planets from smaller bodies and is not useful outside the Solar System, where smaller bodies cannot be found yet. Extrasolar planets, or exoplanets, are covered separately under a complementary 2003 draft guideline for the definition of planets, which distinguishes them from dwarf stars, which are larger.