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Cat 3 Released STAAR
Cat 3 Released STAAR

... C3: Earth and Space A satellite image shows a ship channel between South Padre Island and Boca Chica beach in South Texas. Sand is sometimes removed from the ship channel through a process called dredging to make it easier for ships to travel through. Recently sand from the bottom of the channel wa ...
Stellar parallax-aberration is geocentric
Stellar parallax-aberration is geocentric

... for starlight and might be expected to heat up too much over cosmological time. This same objection was brought to bear against Le Sagean type gravity. The answer to both is: that the earth was created to last for 7,000 years and not billions. If, indeed, parallax cannot be separated then we must wo ...
School Supplies - Rowan County Schools
School Supplies - Rowan County Schools

...  Our solar system is located on the ___________ Arm – 30,000 light years from the center.  Part of the __________ _________ of super clusters (Andromeda is also part of this group)  Astronomers use __________ and _____________ telescopes to “see” the center of the galaxy  We can’t actually “see” ...
Space and Projectile Motion
Space and Projectile Motion

... Optimum spacecraft launch trajectory ...
absolute brightness: The apparent brightness a star would have if it
absolute brightness: The apparent brightness a star would have if it

... dark halo: A large envelope of dark matter around a galaxy that is postulated to explain the rapid rotation of galaxies and other observations. dark matter : A term used to describe the mass in galaxies and clusters of galaxies that can be inferred to exist from its gravitational effects, but has no ...
absolute brightness: The apparent brightness a star would have if it
absolute brightness: The apparent brightness a star would have if it

... dark halo: A large envelope of dark matter around a galaxy that is postulated to explain the rapid rotation of galaxies and other observations. dark matter : A term used to describe the mass in galaxies and clusters of galaxies that can be inferred to exist from its gravitational effects, but has no ...
Astronomy Unit - rachaelreeves
Astronomy Unit - rachaelreeves

... quality of thought ...
THE DYNAMIC TRIO - Siemens Science Day
THE DYNAMIC TRIO - Siemens Science Day

... a large table or appropriate flat surface. Demonstrate to the students how to set up one of the models. Tell the students the cups will be used for balance. Turn the cup upside down. Select one of the appropriate size balls and tape the ball to the top of the cup. Take one of the full sticky notes a ...
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... a) supernova as standard candles to determine far distances b) patterns of small variation in the CMB c) galaxy rotation measurements ...
Ellipses
Ellipses

... celestial body, the more mass it can exert on smaller objects around it. One massive body, acting alone would create a circular orbit. If there’s more than one massive celestial body, the orbiting object will have have an eccentric or elliptical orbit. This has many consequences, not on how we obser ...
Pre SS1 Models of the Solar System - Bolinas
Pre SS1 Models of the Solar System - Bolinas

... the apparent brightness of stars along the zodiac; in summer, for instance, when the Earth is on the side of its orbit closer to the star Spica, its proximity would make Spica look brighter than it does in winter, when the Earth is on the far side of its orbit. As no such phenomenon is observed, the ...
Sirius Astronomer - Orange County Astronomers
Sirius Astronomer - Orange County Astronomers

... Relativity, which considers space as continuous, with quantum theory, which implies space should be made up of some minimum size “grains”. Calculations have shown that those quantum grains should twist the polarization (direction of vibration) of extremely high energy photons (gamma rays) when they ...
Chapter 12 - Our Place in the Universe
Chapter 12 - Our Place in the Universe

... 20E Range finding and parallax will fit in here, followed by 20S measuring distances within the Solar System and beyond which links this to radar. Inverse square law – look at butter gun example then 40E Brightness and distance can be used as quick demo to demonstrate the idea. With good pupils, you ...
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Jeopardy

... The Sun for 200 I produce all of this invisible force that pulls the planets toward me. This force is called? ...
Section I. SpuItering of ices ASTROPHYSICAL IMPLICATIONS OF
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... case of some of the Saturnian satellites. The temperatures continue to drop for objects more distant from the sun and volatiles such as methane can be condensed on the rings and moons of Uranus, and probably on the surface of the planet Pluto and its satellite Charon. Characteristic temperatures in ...
Journal of the Amateur Astronomers Association of New York August
Journal of the Amateur Astronomers Association of New York August

... In the 1990’s, two competing groups of astrophysicists were working to measure the deceleration of the expansion of the universe. It seemed to be intuitively apparent that while the expansion had been known since Hubble, there should be a deceleration due to the lessening pull of gravity. Just as a ...
General Relativity Einstein`s Theory of Gravity Paul Woodward
General Relativity Einstein`s Theory of Gravity Paul Woodward

... this boundary are forever trapped inside the hole, while outgoing light rays outside this boundary are able to expand away from the hole. The left edge of the horizon history diagram shows the shape of the initial configuration, corresponding to either two separate holes (if they are far enough apar ...
isml1
isml1

... Not penetrated by optical and UV photons. Little ionisation. Material is mostly molecular, dominant species is H2. Over 60 molecules detected, mostly via radio astronomy. Masses 1 – 500 solar masses, size ~ 1-5 pc Typically can form 1 or a couple of low-mass (solar mass) stars. ...
The Solar System and its Planets
The Solar System and its Planets

... IAU  regulaKons  require  a  name  from  creaKon  mythology  for  objects  with   orbital  stability  beyond  Neptune's  orbit.  (from  Wikipedia  entry  about  the   dwarf  planet)   ...
Astronomy Exam Notes.docx
Astronomy Exam Notes.docx

... b. an object has energy E when it travels at speed c c. photons can be converted to particles d. the photoelectric effect can be create vacuum energy 19. the light from distant galaxies is redshifted because a. they are moving through space b. the wavelengths are stretched by the expansion of space ...
The Earth in space: An essay on the origin of the Solar system
The Earth in space: An essay on the origin of the Solar system

... The dualistic theory is historically probably the first one proposed by BufEon (1719). H e saw the origin of the planetary system as a result of a collision between the Sun and a comet that came from the depth of interstellar space. Following the poetic word — picture of Gamow, it was a " comete fat ...
The Sun
The Sun

... Solar wind shapes the Earth's magnetosphere and magnetic storms are illustrated here as approaching Earth. These storms, which occur frequently, can disrupt communications and navigational equipment, damage satellites, and even cause blackouts. The white lines represent the solar wind; the purple l ...
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Document

... Solar wind shapes the Earth's magnetosphere and magnetic storms are illustrated here as approaching Earth. These storms, which occur frequently, can disrupt communications and navigational equipment, damage satellites, and even cause blackouts. The white lines represent the solar wind; the purple l ...
Document
Document

... (ii) • the absolute magnitude of PA is smaller than that of PB; • the absolute magnitude is the apparent magnitude at a distance of 10 pc from the Earth; • so at the same distances from Earth PA is much brighter than PB so must be more luminous; ...
Weighing the universe—6 Dec AST207 F2010 12/6/2010
Weighing the universe—6 Dec AST207 F2010 12/6/2010

... We assumed the force of gravity had a  negligible effect on the expansion of the  universe, so that the speed of galaxies  remained the same. Now we include the force  of gravity. How to think about the effect of gravity on the  expansion of the universe. – We are at the center of a big sphere. Many ...
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Outer space



Outer space, or just space, is the void that exists between celestial bodies, including the Earth. It is not completely empty, but consists of a hard vacuum containing a low density of particles, predominantly a plasma of hydrogen and helium as well as electromagnetic radiation, magnetic fields, neutrinos, dust and cosmic rays. The baseline temperature, as set by the background radiation from the Big Bang, is 2.7 kelvin (K). Plasma with a number density of less than one hydrogen atom per cubic metre and a temperature of millions of kelvin in the space between galaxies accounts for most of the baryonic (ordinary) matter in outer space; local concentrations have condensed into stars and galaxies. In most galaxies, observations provide evidence that 90% of the mass is in an unknown form, called dark matter, which interacts with other matter through gravitational but not electromagnetic forces. Data indicates that the majority of the mass-energy in the observable Universe is a poorly understood vacuum energy of space which astronomers label dark energy. Intergalactic space takes up most of the volume of the Universe, but even galaxies and star systems consist almost entirely of empty space.There is no firm boundary where space begins. However the Kármán line, at an altitude of 100 km (62 mi) above sea level, is conventionally used as the start of outer space in space treaties and for aerospace records keeping. The framework for international space law was established by the Outer Space Treaty, which was passed by the United Nations in 1967. This treaty precludes any claims of national sovereignty and permits all states to freely explore outer space. Despite the drafting of UN resolutions for the peaceful uses of outer space, anti-satellite weapons have been tested in Earth orbit.Humans began the physical exploration of space during the 20th century with the advent of high-altitude balloon flights, followed by manned rocket launches. Earth orbit was first achieved by Yuri Gagarin of the Soviet Union in 1961 and unmanned spacecraft have since reached all of the known planets in the Solar System. Due to the high cost of getting into space, manned spaceflight has been limited to low Earth orbit and the Moon.Outer space represents a challenging environment for human exploration because of the dual hazards of vacuum and radiation. Microgravity also has a negative effect on human physiology that causes both muscle atrophy and bone loss. In addition to these health and environmental issues, the economic cost of putting objects, including humans, into space is high.
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