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IDENTIFYING THE ROTATION RATE AND THE PRESENCE OF
IDENTIFYING THE ROTATION RATE AND THE PRESENCE OF

... Such assumptions are clearly optimistic but not completely unreasonable. A 8 ; 3.5 m TPF-C mission could make such a highprecision measurement for an Earth-like planet (i.e., 25 mag fainter than the host star) with a 24 hr rotation period in the  Centauri system (based on a 400 nm bandpass centered ...
M13/4/PHYSI/SP3/ENG/TZ1/XX Tuesday 7 May
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Science Quarter 3 Lessons
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... CONTENT ELABORATION (as stated in Ohio's New Learning Standards) The motion of an object can change by speeding up, slowing down or changing direction. Forces cause changes in motion. If a force is applied in the same direction of an object's motion, the speed will increase. If a force is applied in ...
A Realistic Interstellar Explorer - NASA`s Institute for Advanced
A Realistic Interstellar Explorer - NASA`s Institute for Advanced

... • A 2011 launch to Jupiter with a launch energy C3 = 117.1 km2/s2, and two years later, a 15.4 km/s perihelion burn near the Sun sends the spacecraft at 20.2 AU/year. • Launching toward a star enables comparison with locally measured properties of the interstellar medium with integrated properties d ...
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... too small to notice with the naked eye 2. Earth does not orbit Sun; it is the center of the universe With rare exceptions such as Aristarchus, the Greeks rejected the correct explanation (1) because they did not think the stars could be that far away Thus setting the stage for the long, historical s ...
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Sky-High 2013 - Irish Astronomical Society
Sky-High 2013 - Irish Astronomical Society

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Exploring Exploring - MESSENGER Education

... information on this poorly known planet, but also help scientists learn more about the properties of other planets, including the Earth, and even provide clues to the formation of the Solar System. The reasons for exploring Mercury are the ...
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Properties of the Asteroids

... more matter. The growth of the planets has begun. But in the region just beyond Mars, the normal accumulation of matter was continually disturbed by the gravitational influence of rapidly-forming massive Jupiter. While not strong enough to accrete the matter for itself, it nonetheless disrupted the ...
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... The central black hole The center of Since we are located in the outer part of the galaxy, dust between the the galaxy stars blocks out much of the visible light coming from objects in the disk. Because of this, astronomers use infrared and radio telescopes to study our galaxy. They have learned tha ...
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... FIGURE 5: Simulated field of stars of magnitudes 1 through 6 (larger circles representing brighter stars). Top left -- numbers of each magnitude in proportions found in Bright Star Catalog (i.e. real sky). Top right -numbers calculated via equation 3. Bottom left, equal numbers of each magnitude. B ...
Shouting in the Jungle: the SETI Transmission Debate
Shouting in the Jungle: the SETI Transmission Debate

... resolve over interstellar distances a signal from Earth, independent of radiation from our Sun, a receive antenna must have a beamwidth of less than 5 x 10-6 radians. For a single parabolic antenna, the receiver’s 3 dB beamwidth, in radians, equals roughly wavelength divided by diameter [with the tw ...
ASTRONOMICAL BINOCULARS
ASTRONOMICAL BINOCULARS

... depending upon your location. In general, the declination point of your zenith is equal to the latitude at which you are standing on Earth. EPHEMERIS - The ephemeris of a planet or the sun or the moon is a table giving the coordinates of the object at regular intervals of time. The coordinates will ...
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... The surface geology of Venus includes volcanic features that include large elevated plateaus, large and small volcanic cones and shields, and pancake-shaped formations of lava ...
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... Most of the heavy Iron core of Thea and some of the Iron core from Earth would have fallen back on to Earth and been re-absorbed into the core within months or even days. The Moon then formed from the debris in a period of between a hundred and a thousand years. When the Moon first formed it orbite ...
Chapter 15 - mroberleyscience
Chapter 15 - mroberleyscience

... Copyright © Bobby H. Bammel. All rights reserved. Copyright © Houghton Mifflin Company. All rights reserved. ...
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Astronomical unit

The astronomical unit (symbol au, AU or ua) is a unit of length, roughly the distance from the Earth to the Sun. However, that distance varies as the Earth orbits the Sun, from a maximum (aphelion) to a minimum (perihelion) and back again once a year. Originally conceived as the average of Earth's aphelion and perihelion, it is now defined as exactly 7011149597870700000♠149597870700 meters (about 150 million kilometers, or 93 million miles). The astronomical unit is used primarily as a convenient yardstick for measuring distances within the Solar System or around other stars. However, it is also a fundamental component in the definition of another unit of astronomical length, the parsec.
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