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Introduction - Nipissing University Word
Introduction - Nipissing University Word

... The Earth’s radius is given in 1.(j) to be 3.66 times larger than the Moon’s radius. When a length increases by a factor of k, a corresponding area and a corresponding volume increase by factors of k2 and k3, respectively. It follows that the Earth’s surface area ( 4r 2 ) will be greater than the M ...
Astronomy 110 Announcements: Chapter 7 Earth and the Terrestrial
Astronomy 110 Announcements: Chapter 7 Earth and the Terrestrial

... core cooled off and the whole planet shrunk in size. Generally, tectonics go hand-in-hand with volcanism. ...
Chapter 8 Concept Review - Cambridge University Press
Chapter 8 Concept Review - Cambridge University Press

... know little about it (Sec. 8.1). The discovery of its moon, Charon, allowed us to calculate that Pluto  contains  only  1/500  the  mass  of  the  Earth  (Sec.  8.1a).  Mutual  occultations  of  Pluto  and  Charon  revealed  sizes  and  surface  structures  of  each.  Pluto  has  a  very  thin  nitr ...
Universal Gravitation WS
Universal Gravitation WS

... nearer hand as four times as big. But because your vision depends upon an inverse-square law, the nearer hand should appear twice as tall and twice as wide, and therefore occupy four times as much of your visual field, as the farther hand. Your belief that your hands are the same size is so strong t ...
Today`s Powerpoint
Today`s Powerpoint

... tidal force breaks it apart into small pieces. The radius where this happens is called the Roche Limit. Total mass of ring particles equivalent to 250 km moon. Perhaps a collision between moons sent one inwards this way, or a captured stray body. Rings expected to survive only 50-100 million years. ...
Reasons for the Seasons Webquest
Reasons for the Seasons Webquest

... 1. While the total number of hours in the days does not change from season to season, the number of daylight hours does. ...
newsletter - Thanet Astronomy Group
newsletter - Thanet Astronomy Group

... of Cygnus and some of the brighter stars that make this constellation easy to to find. We also looked at many of the other interesting objects that can be found in Cygnus. The presentation was very well received with many members commenting on how useful it was. The next constellation we will tackle ...
Test #3
Test #3

... a) they are cooler regions, b) they are concentrations of carbon, c) their spectrum has been Doppler shifted, d) impurities in the Sun 5. When the electron and proton go from aligned spins to opposite spins in the Hydrogen atom, what happens? a) nuclear fusion, b) nuclear fission, c) 21 cm radiation ...
Dwarf Planets
Dwarf Planets

... • Small, rocky bodies which originated in the Kuiper Belt • Later captured into shorter-period orbits in the realm of the regular planets • Three dwarf planets clearly identified so far: ...
1704 chart front - Adventure Science Center
1704 chart front - Adventure Science Center

... the Bull. Still further beyond Aldebaran, you may find another orange-red dot, the red planet Mars. Mars will be much fainter. If you can’t find it, try scanning with binoculars. Like Orion and Taurus, Mars will be gone by the end of the month. Look high in the north for the Big Dipper. As famous as t ...
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No Slide Title

Chapter 24: Uranus, Neptune, and the Dwarf - Otto
Chapter 24: Uranus, Neptune, and the Dwarf - Otto

... • Small, rocky bodies which originated in the Kuiper Belt • Later captured into shorter-period orbits in the realm of the regular planets • Three dwarf planets clearly identified so far: ...
Apophis: variational equations
Apophis: variational equations

... • point mass interactions among Moon, planets and Sun; • general relativity; • Newtonian perturbations of selected asteroids; • action upon the shape of the Earth from Moon and Sun; ...
The Origin of the Moon
The Origin of the Moon

... A theory in science is an explanation of why something occurs or behaves the way that it does in nature. In order for a theory explaining the Moon’s formation to be accepted, it should account for everything we currently know about the Moon. The observations we can make about the moon include:  The ...
BENNETT, Constraints on the Orbital Motion of OGLE-2006
BENNETT, Constraints on the Orbital Motion of OGLE-2006

... – Slight dependence on distance to the source star when converting to physical from Einstein Radii units ...
pdf format
pdf format

... – or have highly elliptical orbits – or have highly inclined orbits Orbits of Jupiter’s moons • Orbits give us information about the formation of the rings & satellites ...
EARTH & SPACE SCIENCE
EARTH & SPACE SCIENCE

... An equinox is the moment when the sun appears to cross the celestial equator – a line drawn on the sky directly overhead from the equator. At an equinox, the sun’s rays strike Earth at a 90° angle along the equator. The hours of daylight and darkness are approximately equal everywhere on Earth on th ...
Goal: To understand how Galileo and Newton
Goal: To understand how Galileo and Newton

... 1) Mountains (and craters) on the Moon. • Galileo was the first to document the mountains and craters on the moon (although someone found them just earlier, but was unable to document them). • Galileo was able to spot the shadows the mountains caused allowing him to know what they were. • Galileo’s ...
here - Lund Observatory
here - Lund Observatory

... A star has been observed to have the apparent visual magnitude V. Later observations show that the star in fact is a binary with two identical components. What is apparent visual magnitude of one of these components? ...
Coconino Community College
Coconino Community College

... study the objects of our Solar System and how such data is analyzed in a laboratory setting. Instructors are encouraged to arrange at least 1 weekend field experience. 4. Course outcomes/Competencies : Students will : 1. describe the application of the scientific method and other critical thinking m ...
Jan 2011 Regents
Jan 2011 Regents

... answer the question that the youngest rock is on the east and west coasts. Humans are considered present day…ESRT pg.8&9 The question indicates that this mineral crystal formation is from cooling molten material, which means it is igneous…(1) shale is sedimentary, (2)gneiss is metamorphic, (3) Gabbr ...
Solar-system inventory continued…
Solar-system inventory continued…

... • Earth, Mercury, and all Gas Giants have magnetic fields – Mars and Venus do not PTYS/ASTR 206 ...
Lives of stars
Lives of stars

... larger, hence brighter, but it till be lower temperature. Which letter represents this state of the sun? What do call this type of star? 8. After the dieing process the sun starts, sun will be variable star for short period of time. The sun will change its luminosity as series of shell fusion takes ...
6.6 Relative Positions and Motion of the Earth, Moon and Sun
6.6 Relative Positions and Motion of the Earth, Moon and Sun

... Earth, our home planet, is the only planet in our solar system known to harbour life - life that is incredibly diverse. All the things we need to survive exist under a thin layer of atmosphere that separates us from the cold, airless void of space. Moon Our moon makes Earth a more liveable planet by ...
Chapter 12 (in pdf)
Chapter 12 (in pdf)

... Types of Asteroids (based on composition) •  C-type: large fraction of carbon - dark (low reflectivity), 75% of all asteroids - remnants of solar system formation? •  S-type: large fraction of silicates - standard rocky material, 15% of asteroids •  M-type: large fraction of iron, nickel - standard ...
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Orrery



An orrery is a mechanical model of the solar system that illustrates or predicts the relative positions and motions of the planets and moons, usually according to the heliocentric model. It may also represent the relative sizes of these bodies; but since accurate scaling is often not practical due to the actual large ratio differences, a subdued approximation may be used instead. Though the Greeks had working planetaria, the first orrery that was a planetarium of the modern era was produced in 1704, and one was presented to Charles Boyle, 4th Earl of Orrery — whence came the name. They are typically driven by a clockwork mechanism with a globe representing the Sun at the centre, and with a planet at the end of each of the arms.
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