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... The other planets of the solar system lie approximately but not exactly on the ecliptic: their orbits lie on planes which are at an angle to the ecliptic plane. This angle is called their orbital inclination i. The Earth’s orbit is also not perfectly circular: it is an ellipse, whose deviation from ...
Formation of a Solar System Notes Integrated Science 2 Name: Pd: I
Formation of a Solar System Notes Integrated Science 2 Name: Pd: I

... IV. Formation of Moons and Rings Planets have moons for 2 different reasons A. A large object in space _______________________________, throwing out debris that collects into a __________________ (Ex: Earth’s moon) B. _____________________ have been captured by the planet when they came too close, g ...
Earth has formed in our solar system
Earth has formed in our solar system

... • Competing forces induce flattening ...
Review
Review

... 29) Which of the following observations does not support the solar nebula theory? A) The four inner planets have few or no moons B) The gas planets are farther from the Sun than the four inner planets C) All the planets orbit in the same direction D) The orbits of Pluto and the other distant dwarf ...
A new Cosmos – a novel Physics
A new Cosmos – a novel Physics

... A third critique of Copernican theory was a quite sophisticated argument which included precise astronomical measurements already available in the mid 16th century: If the earth rotates around the sun, which is located in the center of the universe, then one should observe a small variation of the s ...
Scales in the UniverseApollo
Scales in the UniverseApollo

What Makes Up the Solar System?
What Makes Up the Solar System?

Unit 3, Prelab Unit 3
Unit 3, Prelab Unit 3

... Obj. 15b. Since the Earth is moving about the Sun we must be careful when we refer to a period of a planet. An obvious period would be from opposition to opposition. (The synodic period of the Moon, for example, is the interval between full Moons.) This period, with respect to the Sun, is called a s ...
Glossary - Royal Astronomical Society of Canada
Glossary - Royal Astronomical Society of Canada

... dichotomy ...
Great Observatories Origins Deep Survey (GOODS) Observation
Great Observatories Origins Deep Survey (GOODS) Observation

... • Solar day is longer than a sidereal day by about 1/360 because Earth moves about 1° in orbit each day ...
A new Cosmos – a novel Physics
A new Cosmos – a novel Physics

... the universe, then one should observe a small variation of the stars’ positions during the year. Such an effect, called parallax, could not be observed by 16th century astronomers. From this it was correctly concluded that the stars must be very far away from both earth and sun to reconcile Copernic ...
File
File

... material (mostly H and He) within a spiral arm of the milky way galaxy began to contract and flatten into a rotating disk Disk rotated and most of the mass concentrated in the center Surrounding the central disk, the turbulent rotating nebula of interstellar gases began to cool and condense, forming ...
Study Guide: Use your notes and handouts to answer the following
Study Guide: Use your notes and handouts to answer the following

... 35. When it is a full moon, what is the alignment of Earth, Sun, and Moon? Earth is in the middle of the Sun and Moon 36. When it is a new moon, what is the alignment of Earth, Sun, and Moon? The moon is in the middle of the Sun and Earth 37. What is an eclipse? Same as for question #23 38. How is a ...
2nd Semester Exam Study Guide
2nd Semester Exam Study Guide

... -light emitted shifts toward the red end of the spectrum; shows that the star is moving away from Earth - light shifted toward the blue end of the spectrum; shows that the star is moving toward Earth 6. According to the Big Bang Theory, the universe is expanding and galaxies are moving away from the ...
What is your real star sign - teacher notes
What is your real star sign - teacher notes

... their everyday life. They thought there must be a connection between where the celestial objects were in the sky and what would happen in their lives. They even believed that predicting the positions of the stars and planets could be used to predict a person’s future. This seeing into the future is ...
Evidence, Evolution & God`s Existence 5
Evidence, Evolution & God`s Existence 5

... The period in which the moon completes an orbit around the earth (at 2286 miles per hour) and returns to the same position in the sky—the sidereal month—is 27 days, 7 hours, 43 minutes, and 11.6 seconds ...
Skywatch Astro Ed Dec13
Skywatch Astro Ed Dec13

... more than four light-years away; a reminder of the vast gulf that separates us from even our closest stellar neighbours. Between Sirius and Aldebaran, another bright star beckons us. This is Rigel, which at 900 light years away, is more than 100 times further away than Sirius. Yet, if we swapped the ...
Topic 2: Measuring the Earth
Topic 2: Measuring the Earth

Terrestrial planets
Terrestrial planets

...  Rotational period = 243 days.  Venus and Earth are of almost the same size, mass, and density, but differ greatly in other areas.  Venus’s atmospheric pressure is about 90 times the pressure on Earth.  Venus’s high concentration of carbon dioxide (96%), results in an average surface temperature ...
ppt file
ppt file

... Best set of astronomical positions to date – * Incredible observer – naked-eye observations – Planetary & stellar positions good to <1’ – Duel: who is a better mathematician???? ...
Chapter 3 The Science of Astronomy
Chapter 3 The Science of Astronomy

... arcminute) naked eye measurements ever made of planetary positions. • Still could not detect stellar parallax, and thus still thought Earth must be at center of solar system (but recognized that other planets go around Sun) • Hired Kepler, who used Tycho’s observations to discover the truth about pl ...
Planets and Stars
Planets and Stars

...  Revolves  phases ...
PHASES OF THE MOON
PHASES OF THE MOON

... We have seasons because of the tilt of the Earth on its axis and the revolution of the axis around the Sun.  The Earth takes 365 ¼ days to revolve around the Sun and complete all 4 ...
AST 443/PHY 517 Homework 1
AST 443/PHY 517 Homework 1

... 4. Which of these 5 stars can be observed at some time on this night from Cerro Tololo? At what times? 5. Which of these 5 stars is closest to the moon? What is the angular distance? 6. The sidereal time at midnight advances by 3m 56s each day. What are the best days to observe these targets? 7. Wha ...
PHASES OF THE MOON
PHASES OF THE MOON

... Moons of other planets have similarities and differences to our own Moon. Similarities Differences Are called satellites Orbit around the planet ...
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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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