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Chapter 1 Clicker Questions
Chapter 1 Clicker Questions

... False, but it would be a good idea to do so. False, even a spacecraft that moved close to the speed of light would take tens of thousands of years to get to a good vantage point. False, as the Sun and Earth move through the galaxy, we will be able to take a photograph from a different perspective. F ...
Reflecting telescopes - School
Reflecting telescopes - School

... 1/76 = 1.3x10-2 The above telescope could resolve a 10p coin (2.4cm diameter) at 16km since the angle subtended by the coin is: 2.4x10-2 / 16x104 = 1.5x10-6 rad This gives a resolving power of: 550x10-4 / 5 = 1.1x10-7 Radio astronomy is often favoured over traditional forms of astronomy since:  Obs ...
Cosmic Influence on the Sun-Earth Environment
Cosmic Influence on the Sun-Earth Environment

... environment of the Earth were found to be modulated by the geomagnetic field and the ionizing potential of the cosmic rays [8]. Earth directed Coronal Mass Ejection (CME) and its effects on the thermosphere, ionosphere and atmosphere have been studied. During Earth directed CME a beam of electrons ( ...
Document
Document

... Has two moons – Phobos and Deimos Has permanent ice caps at both poles made up of solid carbon dioxide  Visible with the naked eye from Earth  Named after the god of war  One orbit around the sun takes about 687 days ...
15_LectureOutline
15_LectureOutline

Solar System Contents
Solar System Contents

... Homework Due Thu Oct 13 (next time) ...
PDF format
PDF format

... a)  Mars reverses its orbital motion when it is furthest from the Sun. b)  When Earth passes Mars it appears to change its motion relative to the background stars. c)  Because Earth orbits faster than Mars, Mars always seems to move in the opposite direction as the Moon and the Sun. d)  Mars orbits ...
The Copernican revolution - University of Florida Astronomy
The Copernican revolution - University of Florida Astronomy

... In the geocentric model the order of the bodies in the solar system are (in increasing distances): Earth, Moon, Mercury, Venus, Sun, Mars, Jupiter and Saturn In the heliocentric model the order of the bodies in the solar system (in increasing ...
Sample pages 1 PDF
Sample pages 1 PDF

... Earth’s distance from one of the nearer planets could be found. If the true distance between our world and (say) Venus could be determined, by already knowing what the relative distances are, our absolute distance from the Sun could be easily calculated. Halley saw that the accurate measurements of ...
section 17 powerpoint
section 17 powerpoint

... If brightness (in magnitudes) and distance are known, it is straightforward to establish the intrinsic brightness of a star. Astronomers use another magnitude scale for that, called absolute magnitude. Apparent magnitude is designated as m, absolute magnitude as M. Absolute magnitude is defined as ...
Unit 8 Chapter 28 Minor Bodies of the Solar System
Unit 8 Chapter 28 Minor Bodies of the Solar System

... close to Earth. These asteroids have wide, elliptical orbits that bring them near Earth's orbit. Barringer Meteorite Crater, also known simply as Meteor Crater, in Arizona, has a diameter of more than 1 km which scientists believe came from an asteroid that had a diameter of less than 50 m. Dozens o ...
Stars
Stars

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The Sun and How to Observe It For further volumes: www.springer.com/series/5338
The Sun and How to Observe It For further volumes: www.springer.com/series/5338

... telescopes and filters for Hydrogen-alpha and Calcium-K observing have awakened an interest in daytime astronomy to a whole new generation of observers. Using an off-the-shelf solar telescope, today’s amateur astronomers coupled with an inexpensive computer webcam are producing time-lapse movies of ...
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ph507lecnote06

1. This question is about some of the properties of Barnard`s star
1. This question is about some of the properties of Barnard`s star

... spectrum and temperature of a certain star are used to determine its luminosity to be approximately 5.0 1031 W. The apparent brightness of the star is 1.4 10–9 W m–2. These data can be used to determine the distance of the star from Earth. (i) ...
Time
Time

... By the 16th century the seemingly minor error in the Julian calendar (estimating the solar year to be 11 minutes and 14 seconds shorter than it actually is) has accumulated to a ten-day discrepancy between the calendar and reality. It is most noticeable on occasions such as the equinox, now occuring ...
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Phobos

14 Gravitation
14 Gravitation

... 14-2 Newton’s Law of Gravitation Physicists like to study seemingly unrelated phenomena to show that a relationship can be found if they are examined closely enough. This search for unification has been going on for centuries. In 1665, the 23-year-old Isaac Newton made a basic contribution to physic ...
aaaa - Londonderry School District
aaaa - Londonderry School District

... • If too much greater - the surface temperature differences would be too great. Ice and water vapor would travel to the poles, no water anywhere else. • If much less - the habitable zone would shrink in size (think narrow band around equator) • The tilt also allows the seasons to occur. ...
Assessment
Assessment

... that we see the moon best at night but we can see it during the day. They should also know that it is always half lighted by the sun but we cannot see the entire lighted half except during a full moon. ...
the link to the powerpoint for Monday
the link to the powerpoint for Monday

... intrinsic POWER of object shining light. • Total of all emitted/radiated energy every second. • Intrinsic • What does intrinsic mean? ...
Chapter 28 Stars and Their Characteristics
Chapter 28 Stars and Their Characteristics

... bright a star “appears” to be from Earth. The Apparent Magnitude of a star is affected by Absolute Magnitude (Volume x Luminosity) and Distance from Observer. Betelgeuse, one of the brightest stars in the Universe, does not appear to be as bright as our Sun, because of its distance from us compared ...
PowerPoint Presentation - 5. Universal Laws of Motion
PowerPoint Presentation - 5. Universal Laws of Motion

... Each planet’s orbit around the Sun is an ellipse, with the Sun at one focus. ...
The View From Earth
The View From Earth

... 1. Earth: (1) rotates on an axis once every 24 hours; (2) revolves about the Sun with period 365.25 days; (3) accompanies the Sun (and other planets) as it moves relative to other stars in its immediate neighborhood; (4) orbits about the center of the Milky Way galaxy, with period 230 million years; ...
Sun Powerpoint
Sun Powerpoint

... http://www.answersingenesis.org/assets/images/articles/tba/chapter-one/sun-moon-earth.jpg http://www.astro.washington.edu/labs/clearinghouse/labs/Propsun/images/chang_sun2.gif http://hometown.aol.com/falconmaster29/downloads/SolarFlare.jpg http://www.nasa.gov/images/content/171925main_heliolayers_la ...
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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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