Unit 7 Astronomy
... fastest Earth is moving the 2. aphelion: _________________________ slowest _________________________________________ ...
... fastest Earth is moving the 2. aphelion: _________________________ slowest _________________________________________ ...
Navigation Methods
... The Global Positioning System (GPS) • is a worldwide radio-navigation system formed from a constellation of 24 satellites and their ground stations. • GPS uses these "man-made stars" as reference points to calculate positions accurate to a matter of meters. In fact, with advanced forms of GPS you ...
... The Global Positioning System (GPS) • is a worldwide radio-navigation system formed from a constellation of 24 satellites and their ground stations. • GPS uses these "man-made stars" as reference points to calculate positions accurate to a matter of meters. In fact, with advanced forms of GPS you ...
Planet found in nearest star system to Earth » Astronautical News
... European astronomers have discovered a planet with about the mass of the Earth orbiting a star in the Alpha Centauri system — the nearest to Earth. It is also the lightest exoplanet ever discovered around a star like the Sun. The planet was detected using the HARPS instrument on the 3.6-metre telesc ...
... European astronomers have discovered a planet with about the mass of the Earth orbiting a star in the Alpha Centauri system — the nearest to Earth. It is also the lightest exoplanet ever discovered around a star like the Sun. The planet was detected using the HARPS instrument on the 3.6-metre telesc ...
Astronomy Milestone/OAS practice
... 14. Which planet do scientists think once had surface water or flowing rivers? A. Mercury B. Venus C. Mars D. Jupiter 15. Venus is completely enveloped in clouds that hide its surface from view on Earth. Which statement is also true about these clouds? A. They keep the surface cool. B. They produce ...
... 14. Which planet do scientists think once had surface water or flowing rivers? A. Mercury B. Venus C. Mars D. Jupiter 15. Venus is completely enveloped in clouds that hide its surface from view on Earth. Which statement is also true about these clouds? A. They keep the surface cool. B. They produce ...
ASTR 2020, Spring 2015 Professor Jack Burns Final Exam
... A: Interplanetary space is full of radiation from our Sun’s solar wind and from Galactic cosmic rays. For humans, the danger that this radiation presents is in the form of the breaking of DNA. In the case of electronics, the particles can impact and damage circuitry. Furthermore, spacecraft and sens ...
... A: Interplanetary space is full of radiation from our Sun’s solar wind and from Galactic cosmic rays. For humans, the danger that this radiation presents is in the form of the breaking of DNA. In the case of electronics, the particles can impact and damage circuitry. Furthermore, spacecraft and sens ...
CALLED THE RED PLANET
... OF THE MANY CRATERS IN ITS SURFACE, BACH AND MOZART ARE TWO OF THE NAMES; BECAUSE THERE IS NO ATMOSPHERE OR WEATHER, CRATERS REMAIN FOREVER ALSO BECAUSE IT HAS LITTLE ATMOSPHERE, IT HAS THE GREATEST FLUCTUATIONS IN DAYTIME AND NIGHTIME TEMPERATURES. EXTREMELY HIGH TEMPERATURES DUE TO THE HIGH AMOUNT ...
... OF THE MANY CRATERS IN ITS SURFACE, BACH AND MOZART ARE TWO OF THE NAMES; BECAUSE THERE IS NO ATMOSPHERE OR WEATHER, CRATERS REMAIN FOREVER ALSO BECAUSE IT HAS LITTLE ATMOSPHERE, IT HAS THE GREATEST FLUCTUATIONS IN DAYTIME AND NIGHTIME TEMPERATURES. EXTREMELY HIGH TEMPERATURES DUE TO THE HIGH AMOUNT ...
Observing the Planets
... of Earth’s rotation • Additionally, planets move with respect to the fixed stars, that’s why they are called planets (greek: wanderers) • Due to the planet’s movement in their orbit, and Earth’s orbital motion, this additional motion – the apparent motion of the planet as seen from Earth - looks com ...
... of Earth’s rotation • Additionally, planets move with respect to the fixed stars, that’s why they are called planets (greek: wanderers) • Due to the planet’s movement in their orbit, and Earth’s orbital motion, this additional motion – the apparent motion of the planet as seen from Earth - looks com ...
What is the sun?
... farther away from the sun and has it winter and the other part has its summer, Between wummer and winter, both halves of the earth are the same distance from the sun. Then they have spring and autumn. As the earth goes round in its orbit, we have our for seasons go on and on. ...
... farther away from the sun and has it winter and the other part has its summer, Between wummer and winter, both halves of the earth are the same distance from the sun. Then they have spring and autumn. As the earth goes round in its orbit, we have our for seasons go on and on. ...
51) If Earth had twice its present mass, but the same radius
... 78) If you were to weigh yourself in an elevator that is accelerating upward, would your weight be greater or less than normal? Explain why. 79) Gravitation weakens as the inverse square of distance, while tidal gravity (force per kilogram) weakens with the inverse 80) If you drop a stone into a hol ...
... 78) If you were to weigh yourself in an elevator that is accelerating upward, would your weight be greater or less than normal? Explain why. 79) Gravitation weakens as the inverse square of distance, while tidal gravity (force per kilogram) weakens with the inverse 80) If you drop a stone into a hol ...
Volume 20 Number 5 April 2012 - Forsyth Astronomical Society
... GEORGIA A Portal, Georgia resident said that in the middle of the night on February 13th, something disturbed the animal population - cows started mooing anxiously and local dogs howled at the sky. The cause of the commotion was a rock from space. He added, “I witnessed an amazing fireball! It was v ...
... GEORGIA A Portal, Georgia resident said that in the middle of the night on February 13th, something disturbed the animal population - cows started mooing anxiously and local dogs howled at the sky. The cause of the commotion was a rock from space. He added, “I witnessed an amazing fireball! It was v ...
GAYNES SCHOOL SCHEME OF WORK – SCIENCE
... What is in the sky tonight? Show picture on tonight's night sky http://www.schoolsobservatory.org.uk/ What do you know? Sketch the solar system Is earth special? Day and night ...
... What is in the sky tonight? Show picture on tonight's night sky http://www.schoolsobservatory.org.uk/ What do you know? Sketch the solar system Is earth special? Day and night ...
Kepler`s Third Law
... Dutch spectacle maker Hans Lippershey in 1608. Galileo, without having seen a telescope, constructed his own, more accurate version. He was the first person to make significant astronomical observations with a telescope --and they were spectacular. ...
... Dutch spectacle maker Hans Lippershey in 1608. Galileo, without having seen a telescope, constructed his own, more accurate version. He was the first person to make significant astronomical observations with a telescope --and they were spectacular. ...
Transit of Venus
... All these objects are gravitationally bound to the Sun and revolve around it. Planets are very small compared to the space between them. The size of the astronomical objects can vary over a large range… ...
... All these objects are gravitationally bound to the Sun and revolve around it. Planets are very small compared to the space between them. The size of the astronomical objects can vary over a large range… ...
What is a Solar System?
... and comet dust (up to a few meters in diameter) ◦ If they collide with Earth’s atmosphere, they form visible streaks of light as they burn up and are called meteors (shooting stars) ◦ If a meteor reaches Earth’s surface, it is then classified as a meteorite ...
... and comet dust (up to a few meters in diameter) ◦ If they collide with Earth’s atmosphere, they form visible streaks of light as they burn up and are called meteors (shooting stars) ◦ If a meteor reaches Earth’s surface, it is then classified as a meteorite ...
Motions of the Celestial Sphere
... The occupants notice that the stars never rise or set but appear to move in circles parallel to the horizon. Where on the planet did the space ship land? a) At the equator. b) At 45 degrees latitude. c) At one of the celestial poles. d) Cannot be determine. ...
... The occupants notice that the stars never rise or set but appear to move in circles parallel to the horizon. Where on the planet did the space ship land? a) At the equator. b) At 45 degrees latitude. c) At one of the celestial poles. d) Cannot be determine. ...
Document
... • Estimated number of technological civilizations present in the Milky Way galaxy is given by the average rate of star formation fraction of stars having planetary systems average number of planets within the habitable zone for various types of star and star system fraction of habitable planet ...
... • Estimated number of technological civilizations present in the Milky Way galaxy is given by the average rate of star formation fraction of stars having planetary systems average number of planets within the habitable zone for various types of star and star system fraction of habitable planet ...
Ch. 3 Sec. 5 Notes
... to 100 times Earth's distance from the sun 2. Oort Cloud: spherical region of comets that surrounds the solar system out to more than 1,000 times the distance between Pluto and the sun Asteroids *Rocky objects, called asteroids, are too small and too numerous to be considered full-fledged planets *M ...
... to 100 times Earth's distance from the sun 2. Oort Cloud: spherical region of comets that surrounds the solar system out to more than 1,000 times the distance between Pluto and the sun Asteroids *Rocky objects, called asteroids, are too small and too numerous to be considered full-fledged planets *M ...
How Big is Big? Integrated Science 2 Name: Date: Pd: Select items
... used to describe topics in science, such as the age of the universe, the length of a galaxy, or number of stars in a galaxy. Before we begin to look at our Origins unit, which covers times and distances in the billions—and more, we want you to take a minute to just think about how big our universe i ...
... used to describe topics in science, such as the age of the universe, the length of a galaxy, or number of stars in a galaxy. Before we begin to look at our Origins unit, which covers times and distances in the billions—and more, we want you to take a minute to just think about how big our universe i ...
celestial sphere.
... Distances between points on the celestial sphere are measured in degrees, arcminutes, and arcseconds 360 degrees in a circle 60 arcminutes in a degree 60 arcseconds in an arcminute ½ degree = angular size of ...
... Distances between points on the celestial sphere are measured in degrees, arcminutes, and arcseconds 360 degrees in a circle 60 arcminutes in a degree 60 arcseconds in an arcminute ½ degree = angular size of ...
Outline of Lecture on Copernican Revolution: 1. Source of word
... Planets move faster when they are closer to the sun. Ptolemy “explained” this by a nonuniform motion of the guiding center of the epicycle about the guiding center circle. Copernicus, perhaps rediscovering something that muslim mathematicians had realized two centuries before him, used a small epicy ...
... Planets move faster when they are closer to the sun. Ptolemy “explained” this by a nonuniform motion of the guiding center of the epicycle about the guiding center circle. Copernicus, perhaps rediscovering something that muslim mathematicians had realized two centuries before him, used a small epicy ...
Lecture 5 Astronomy
... However, temperatures rarely rise above 0o F. Why? A. Ice reflects solar radiation back into space B. Sun never rises high above the horizon limiting quantity of solar radiation that reaches the surface C. Cold ice prevents significant increases in surface temperature D. All of the above 45. What ha ...
... However, temperatures rarely rise above 0o F. Why? A. Ice reflects solar radiation back into space B. Sun never rises high above the horizon limiting quantity of solar radiation that reaches the surface C. Cold ice prevents significant increases in surface temperature D. All of the above 45. What ha ...
Practice Quiz Gravitation
... A) GM2/R2 B) GM2/2R2 C) GM2/4R2 D) 2GM2/R2 Answer: C 3) The moons of Mars, Phobos (Fear) and Deimos (Terror), are very close to the planet compared to Earth's Moon. Their orbital radii are 9,378 km and 23,459 km respectively. What is the ratio of the orbital speed of Phobos to that of Deimos? A) 0.2 ...
... A) GM2/R2 B) GM2/2R2 C) GM2/4R2 D) 2GM2/R2 Answer: C 3) The moons of Mars, Phobos (Fear) and Deimos (Terror), are very close to the planet compared to Earth's Moon. Their orbital radii are 9,378 km and 23,459 km respectively. What is the ratio of the orbital speed of Phobos to that of Deimos? A) 0.2 ...
Announcements
... rotate more slowly than ones at the center l The fact that this does not happen is evidence of the presence of dark matter around our galaxy (10X as much dark matter as regular matter) ...
... rotate more slowly than ones at the center l The fact that this does not happen is evidence of the presence of dark matter around our galaxy (10X as much dark matter as regular matter) ...
Geocentric model
In astronomy, the geocentric model (also known as geocentrism, or the Ptolemaic system) is a description of the cosmos where Earth is at the orbital center of all celestial bodies. This model served as the predominant cosmological system in many ancient civilizations such as ancient Greece including the noteworthy systems of Aristotle (see Aristotelian physics) and Ptolemy. As such, they believed that the Sun, Moon, stars, and naked eye planets circled Earth.Two commonly made observations supported the idea that Earth was the center of the Universe. The stars, the sun, and planets appear to revolve around Earth each day, making Earth the center of that system. The stars were thought to be on a celestial sphere, with the earth at its center, that rotated each day, using a line through the north and south pole as an axis. The stars closest to the equator appeared to rise and fall the greatest distance, but each star circled back to its rising point each day. The second observation supporting the geocentric model was that the Earth does not seem to move from the perspective of an Earth-bound observer, and that it is solid, stable, and unmoving.Ancient Roman and medieval philosophers usually combined the geocentric model with a spherical Earth. It is not the same as the older flat Earth model implied in some mythology, as was the case with the biblical and postbiblical Latin cosmology. The ancient Jewish Babylonian uranography pictured a flat Earth with a dome-shaped rigid canopy named firmament placed over it. (רקיע- rāqîa').However, the ancient Greeks believed that the motions of the planets were circular and not elliptical, a view that was not challenged in Western culture until the 17th century through the synthesis of theories by Copernicus and Kepler.The astronomical predictions of Ptolemy's geocentric model were used to prepare astrological and astronomical charts for over 1500 years. The geocentric model held sway into the early modern age, but from the late 16th century onward was gradually superseded by the heliocentric model of Copernicus, Galileo and Kepler. There was much resistance to the transition between these two theories. Christian theologians were reluctant to reject a theory that agreed with Bible passages (e.g. ""Sun, stand you still upon Gibeon"", Joshua 10:12 – King James 2000 Bible). Others felt a new, unknown theory could not subvert an accepted consensus for geocentrism.