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Union College Spring 2016 Astronomy 50 Lab: Diameter of the
Union College Spring 2016 Astronomy 50 Lab: Diameter of the

... (1) and (2) was the distance between two locations that were due North-South of each other, and the locations we are using also have an East-West component to their distance. Consider the location on the Earth that is due South of Schenectady and due East of Playa del Carmen, Mexico. In Figure 7, wh ...
Directed Reading
Directed Reading

... c. energy and matter d. nuclear fusion and the nucleus of the atom ______ 35. Einstein’s proposal was a. part of his special theory of relativity. b. part of his general theory of physics. c. his basic theory about the makeup of atoms. d. part of his special theory of energy. ______ 36. What equatio ...
Deducing Temperatures and Luminosities of Stars
Deducing Temperatures and Luminosities of Stars

... • EM radiation is the combination of time- and space- varying electric + magnetic fields that convey energy. • Physicists often speak of the “particle-wave duality” of EM ...
15 May 2011 Gas Giants, (Rigel, Betelgeuse, Aldebaran etc
15 May 2011 Gas Giants, (Rigel, Betelgeuse, Aldebaran etc

Today in Astronomy 142: observations of stars
Today in Astronomy 142: observations of stars

... !  The ESA satellite Gaia, launched last year, will measure parallax with an accuracy of 0.00002 arcsec, thus perhaps stretching out to 50 000 parsecs = 50 kpc. •  Compare: we live 8 kpc from the center of our Galaxy. ...
Solar Eclipses
Solar Eclipses

topics and terms - Rice Space Institute
topics and terms - Rice Space Institute

... 16. Syzygy: locations of special orientations of the Earth, sun, and a Planet. Generally, the Earth-Sun-Planet (or Earth-Planet-sun) angle will be 0, 180, or 90 degrees. (see next two). 17. Exterior (superior) Planet: farther than Earth from the Sun. Syzygy points are: opposition (opposite direction ...
Chapter three: The properties of Stars
Chapter three: The properties of Stars

... Transits of Mercury are more frequent, but it’s parallax angle (<30”) is too small to obtain reliable results. - Near Earth Asteroids: Direct measurements of the parallax of these objects are possible when they are close to Earth. E.g. 433 Eros was used in the early 1900th. - Direct Radar travel tim ...
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Earth/Space Science ​FINAL​ Review/Study Guide: Gardana DUE

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Mission 1 - NC State University
Mission 1 - NC State University

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Chapter 2

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Solar Observing Curriculum Guide
Solar Observing Curriculum Guide

... lesson does not assume a knowledge of trigonometry). Taking path 4a is recommended, not only for instructional ease, but also to expose students to stunning solar observations from NASA. 7. As the Sun is a sphere, to accurately calculate the rotational velocity, one must account for its curvature. T ...
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LESSON 4, STARS

... form pictures, as we look at them from Earth.  If we looked at the same stars from outside our ...
Celestia Activity 2013
Celestia Activity 2013

... 24,600 mph. Considering the moon is about 384,400 km away on average, calculate how long it would take to reach the moon at this rate (show work): time = distance / rate *Note: this will yield an answer in seconds. Divide this answer by 60 twice and then by 24 to get a final answer in days: 6. To ga ...
ISSUE 45 September 2011 - Bristol Astronomical Society
ISSUE 45 September 2011 - Bristol Astronomical Society

ASTR 2310: Chapter 2
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... along the horizon is fastest around the equinoxes, and slowest around the solstices Around the equinoxes, the declination (distance from the celestial equator) will change by 0.5° per day Near the solstices, it will stay fixed for almost a week ...
Geo-centric astronomy from Pythagoras to Ptolemy File
Geo-centric astronomy from Pythagoras to Ptolemy File

... on the same course around the North star. The next night, you will find the entire show being repeated, pretty much in the same position that it was the previous night. In short, the Big Dipper and other stars near the North Star appear to follow a circular path, with the North Star at the center. T ...
Lesson 3: The Motion of the Moon, Sun, and Stars— Motivating
Lesson 3: The Motion of the Moon, Sun, and Stars— Motivating

... motion of the sun and the planets. If just the system of Earth and the sun are considered, disregarding the other planets, then Earth and the sun both revolve around the center of mass of the system, called the barycenter. Because the mass of the sun, 1.99 × 1030 kg, is far greater than the mass of ...
Complete the “Assess Your Understanding” including
Complete the “Assess Your Understanding” including

... Apparent brightness (sometimes called apparent magnitude) is the _______ ____________________________________________. The sun LOOKS light the brightest star, but that is only because it is the __________________ star to Earth. Absolute brightness (sometimes called absolute magnitude or luminosity) ...
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... than a dozen dark cores scattered across 350,000 km of solar "terrain." This complex region has a 'beta-gamma' magnetic field that harbors energy for strong M-class solar flares, and it is directly facing Earth: Reports of naked-eye sightings of Comet ISON are coming in from around the world. Experi ...
The solar energetic balance and the dynamics of the radiative zone
The solar energetic balance and the dynamics of the radiative zone

Coordinates and Time - University of Florida Astronomy
Coordinates and Time - University of Florida Astronomy

... Terresterial Dynamical Time (TDT) and International Atomic Time (IAT) The modern standard time is based upon the SI second, which is defined in terms of the oscillations for a particular transition of 133Cs rather than astronomical measures. One second = 9192631770 oscillations. IAT is effectively t ...
Frostburg State Planetarium presents
Frostburg State Planetarium presents

... • When sun disappears from our view, the air overhead is still ‘seeing’ sun and glowing. • When sun 6 dg. below horizon, turn on lights • When sun 18 dg. below horizon, sky darkest • To see faint star groups, sun must be 12 dg. below • Arctic Circle cities have no darkness in June ...
A PowerPoint on Lunar Grazing Occultations
A PowerPoint on Lunar Grazing Occultations

... • (If the objects are comparable in size, it’s usually called an “eclipse” instead) • As the moon moves through it’s orbit, it passes in front of distant stars or planets. This essentially casts a shadow on the Earth and from within this shadow, you can watch the star approach the moon and wink off ...
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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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