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SO FAR:
SO FAR:

... • Π, Θ, Z velocities but relative to Local Standard of Rest • LSR is point instantaneously centered on Sun, but moving in a perfectly circular orbit. • Solar motion: motion of sun relative to LSR ...
Solar System Review - answer key
Solar System Review - answer key

... Planets must orbit around the sun, have enough gravity to pull themselves into a spherical shape, and need to be “alone” in their orbit (not share their orbit with other objects such as Charon, Pluto’s large moon). Pluto does not meet the last criteria. In addition, Pluto’s orbit is very much more e ...
Characteristics of Stars
Characteristics of Stars

... Stars with higher temperatures have greater absolute magnitudes ...
Document
Document

... • In the 3rd Century B.C., a Greek, Aristarchus of Samos, figured out a way to measure the relative sizes and distances of the Moon and Sun. • He noticed that when the Moon was eclipsed by the Earth (월식) we can see the Earth's shadow creep across the face of the Moon. Earth's shadow is circular, and ...
Document
Document

... To the ancient Greeks, the stars traveled daily around the Earth on a transparent, hollow sphere called the celestial sphere. It was Aristarchus (312-230 BC) who first proposed the heliocentric model, that placed the Sun in the middle of everything. This was centuries BEFORE the accepted Ptolemaic ...
Chapter Notes - Alpcentauri.info
Chapter Notes - Alpcentauri.info

... The plane of the ecliptic (also known as the ecliptic plane) is the plane of the Earth’s orbit about the Sun. It is the primary reference plane when describing the position of bodies in the Solar System, with celestial latitude being measured relative to the ecliptic plane. In the course of a year, ...
Solar System Study Guide 1
Solar System Study Guide 1

... mathematician who lived from 1571 to 1630, recognized that planets travel around the sun in elliptical rather than circular orbits. His observations resulted in what are now called Kepler’s three laws of planetary motion: 1. All planets move in elliptical orbits having the sun as one focus (Law of O ...
Round_2_Solutions _2015
Round_2_Solutions _2015

... distance from earth will vary considerably as it is not in orbit about the Earth. The Venus –Sun distance is 0.7 AU, although an estimate of about ½ AU will suffice to explain the observation. (This figure is deliberately not given in the data). The period of orbit about the sun will be shorter than ...
Document
Document

... • In the 3rd Century B.C., a Greek, Aristarchus of Samos, figured out a way to measure the relative sizes and distances of the Moon and Sun. • He noticed that when the Moon was eclipsed by the Earth (월식) we can see the Earth's shadow creep across the face of the Moon. Earth's shadow is circular, and ...
Early Astronomy
Early Astronomy

Lecture on Planetary Configurations
Lecture on Planetary Configurations

Intro to Space
Intro to Space

... • You will need to take your information from the website and design our solar system on paper • Be creative! Make sure you use the facts in some way from the website and incorporate it into your design • INCLUDE all the parts of the solar system • You will have TWO SCIENCE PERIODS to do this!! ...
Lecture1
Lecture1

... • Eratosthenes used the assumption of a spherical Earth and his observation of the difference of altitude of the Sun at Syene (directly overhead on a known date) and at Alexandria, 5000 stadia farther north. • Eratosthenes’ method gives a radius for Earth of ~6250km. This is very close to the modern ...
File
File

... • The AU is equal to the average distance between Earth and the Sun - about 150 million kilometres! • Therefore, the Earth is 1 AU from the Sun • The average distance between the Sun and an object orbiting the Sun is called the orbital radius - measured in AU • The planets share many similarities w ...
Coursework 1 File
Coursework 1 File

... 4. Now consider the direction in which this precessional torque acts during both the summer and winter solstices (hint: it should either be into or out of the page in each case). Using your results, argue that the torque acting, when integrated over the orbit of the Earth around the Sun, gives rise ...
Earth Science Facts - Kempsville Middle School
Earth Science Facts - Kempsville Middle School

... Comet’s tail is the result of the solar wind and points away from the sun. Comets are known as dirty snowballs in space and originate in the Oort Cloud. Asteroids are rocky or metallic iron objects and are found mainly between Mars and Jupiter. AU= distance of Earth to Sun. We measure planet distanc ...
Notes
Notes

... a. _____________________of the moon is the same as the Earth’s 4. Phases of the moon a. phases of the moon are ____________ by Earth’s shadow b. also see book page 634 ...
8th Grade Midterm Test Review
8th Grade Midterm Test Review

... color as the sun, what can the scientist assume about he temperature of the star? • The scientist can assume that the star may have a temperature that is similar to the Sun’s because it is the same color ...
Lecture6
Lecture6

... (simple/perfect objects), and at center of the universe. Shape of earth’s shadow during lunar eclipse. Ships sailing over horizon. ...
Scientific method, night sky, parallax, angular size
Scientific method, night sky, parallax, angular size

... falsifiable) and predictive. They address how questions (e.g. How do stars form? How is a lunar eclipse caused? How did the Universe evolve?) • Religious and ethical statements are (generally) not verifiable. They address why questions (e.g. Why does the Universe exist? What kind of life is worth li ...
Parallax - The Universe Adventure
Parallax - The Universe Adventure

Third Nine Weeks Review – Sky Patterns
Third Nine Weeks Review – Sky Patterns

...  In the morning when the sun is rising and low in the sky, shadows are long.  Around noon when the sun is high in the sky, shadows are very short or there may not be a shadow at all  In the evening when it is dusk, the sun is again low in the sky and shadows become longer once again  As Earth ro ...
Simulating Gravitational Attraction Activity
Simulating Gravitational Attraction Activity

... d) Does this agree with the fact that Jupiter takes almost 12 times longer than the Earth to go once around the sun? e) In galaxies, the stars further from the galactic center spin with about the same tangential velocity as those closer in, make this apparatus demonstrate this. How can you do this? ...
Astronomy 1001
Astronomy 1001

... • You will measure the synodic month in the Moon Project ...
Tidal Mechanism as an Impossible Cause of the Observed Secular
Tidal Mechanism as an Impossible Cause of the Observed Secular

... planetary orbits. After all, it is clear from the orbital radius dependence in equation (1) that the tidal interaction cannot cause a homogeneous expansion of the planetary orbits. Because the AU is such a fundamental quantity in solar system planetary physics (e.g., Standish 2005; Capitaine & Guino ...
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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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