Astro history notes 1
... models of the relation between the Earth and Celestial bodies How to explain the observations? Why did some celestial objects move on the celestial sphere? Why did most celestial objects stay in their places? ...
... models of the relation between the Earth and Celestial bodies How to explain the observations? Why did some celestial objects move on the celestial sphere? Why did most celestial objects stay in their places? ...
Geocentric vs. Heliocentric - Answering the Debate 2014
... long-held notion that the Earth was the center of the Solar system, but he did not question the assumption of uniform circular motion. Thus, in the Copernican model the Sun was at the center, but the planets still executed uniform circular motion about it. As we shall see later, the orbits of the ...
... long-held notion that the Earth was the center of the Solar system, but he did not question the assumption of uniform circular motion. Thus, in the Copernican model the Sun was at the center, but the planets still executed uniform circular motion about it. As we shall see later, the orbits of the ...
REVIEW: STAR`S TEST
... How much brighter is the sun than Jupiter ? ___________________________ Can a 15 cm telescope see an object with an apparent magnitude of 18.5 ? ______________________________ ...
... How much brighter is the sun than Jupiter ? ___________________________ Can a 15 cm telescope see an object with an apparent magnitude of 18.5 ? ______________________________ ...
Day-6
... The Law of Inertia An object in straight line uniform motion will continue that motion unchanged unless some external force acts on it ...
... The Law of Inertia An object in straight line uniform motion will continue that motion unchanged unless some external force acts on it ...
Chapter 9
... Albert Einstein spent much of his life trying to explain what gravity is, and relate it to the other forces somehow Visualized a gravitational field as a geometrical warping of four-dimensional space and time “Don’t try. I can’t do it either.” -Einstein His ideas explained Black Holes before t ...
... Albert Einstein spent much of his life trying to explain what gravity is, and relate it to the other forces somehow Visualized a gravitational field as a geometrical warping of four-dimensional space and time “Don’t try. I can’t do it either.” -Einstein His ideas explained Black Holes before t ...
Cosmic Distance Ladder
... Note that beyond the Virgo cluster, even very bright stars like Cepheids become unresolved and we see only the integrated light from galaxies. Further away than this, we must determine distances using the redshift of galaxies. ...
... Note that beyond the Virgo cluster, even very bright stars like Cepheids become unresolved and we see only the integrated light from galaxies. Further away than this, we must determine distances using the redshift of galaxies. ...
Exploring the Solar System - The Federation of Galaxy Explorers
... or just after sunset. When it is to the east of the Sun, Venus shines in the evening sky like a jewel and is called the Evening Star. When west of the Sun, it shines before dawn as the Morning Star. The ancients thought the Morning Star and the Evening Star were two different objects. Today, we kno ...
... or just after sunset. When it is to the east of the Sun, Venus shines in the evening sky like a jewel and is called the Evening Star. When west of the Sun, it shines before dawn as the Morning Star. The ancients thought the Morning Star and the Evening Star were two different objects. Today, we kno ...
Intro to Astronomy
... Origins of the Universe • There are a lot of models and ideas that exist to explain how the universe came about. The current accepted scientific model is called the Big Bang theory. Which states that the universe started from an infinitesimal point that exploded in a huge release of energy and matte ...
... Origins of the Universe • There are a lot of models and ideas that exist to explain how the universe came about. The current accepted scientific model is called the Big Bang theory. Which states that the universe started from an infinitesimal point that exploded in a huge release of energy and matte ...
Document
... • Rock & Metals form where T < 1300 K • Carbon grains & ices where T(gas) < 300 K • Inner planets and asteroids: Rocky and metallic • Snow line • Outer Jovian systems: Gaseous giants, carbon ices • Dust grains and ices collide, accrete, and eventually grow bigger gravitationally into planetesimals b ...
... • Rock & Metals form where T < 1300 K • Carbon grains & ices where T(gas) < 300 K • Inner planets and asteroids: Rocky and metallic • Snow line • Outer Jovian systems: Gaseous giants, carbon ices • Dust grains and ices collide, accrete, and eventually grow bigger gravitationally into planetesimals b ...
File
... – Our solar system is full of planets, moons, asteroids and comets, all of which revolve around the Sun at the center. – When a star forms from a nebula, gravity pulls most of the material into the new star, but some may also clump together to form objects in a solar system. ...
... – Our solar system is full of planets, moons, asteroids and comets, all of which revolve around the Sun at the center. – When a star forms from a nebula, gravity pulls most of the material into the new star, but some may also clump together to form objects in a solar system. ...
File - Adopt A Constellation
... • Constellations - A pattern or group of stars in the sky that humans observe in a pattern and give a name. • People of ancient time saw the constellations as character or animals in the sky. They made up stories to explain how the object, animal, or character came into the night sky • Earth rotate ...
... • Constellations - A pattern or group of stars in the sky that humans observe in a pattern and give a name. • People of ancient time saw the constellations as character or animals in the sky. They made up stories to explain how the object, animal, or character came into the night sky • Earth rotate ...
Lecture 19 The Milky Way Galaxy
... - Contains most GMCs, so most star formation takes place in disk - Contains all open clusters, a few million to a billion years old - By proportion, the disk is thinner than a pizza crust (not deep dish!) ...
... - Contains most GMCs, so most star formation takes place in disk - Contains all open clusters, a few million to a billion years old - By proportion, the disk is thinner than a pizza crust (not deep dish!) ...
Mechanical Systems Topics 1 and 2
... When measuring the diameter of the sun, we use an indirect method, so that we can determine the diameter without actually measuring it directly. To calculate the accuracy of your measured value, this is calculated to show how far from the real value your measured value is … A. actual error B. estima ...
... When measuring the diameter of the sun, we use an indirect method, so that we can determine the diameter without actually measuring it directly. To calculate the accuracy of your measured value, this is calculated to show how far from the real value your measured value is … A. actual error B. estima ...
Week 5 File
... normally about 1000). We can therefore work out the angular distance on the sky that is imaged by each pixel (the CCD pixel scale), and therefore the maximum resoluFon of the set up (i.e. ...
... normally about 1000). We can therefore work out the angular distance on the sky that is imaged by each pixel (the CCD pixel scale), and therefore the maximum resoluFon of the set up (i.e. ...
Our Solar System
... the Sun. They range in size from a few feet . in diameter to hundreds of miles in diameter. Most asteroids are found between Mars and Jupiter. Some have orbits that cross the Earth’s path, and in the past, some have even crashed into Earth. Asteroids and other smaller objects that enter Earth’s at ...
... the Sun. They range in size from a few feet . in diameter to hundreds of miles in diameter. Most asteroids are found between Mars and Jupiter. Some have orbits that cross the Earth’s path, and in the past, some have even crashed into Earth. Asteroids and other smaller objects that enter Earth’s at ...
Planet Facts Matching Cards
... Also known as the Red planet because it looks reddish in the sky. ...
... Also known as the Red planet because it looks reddish in the sky. ...
Document
... Winter and summer are six months apart because it takes the Earth six months to get halfway around the sun. Also each season is three months long. When its winter in the northern hemisphere that means it is summer in the southern. This happens because of the 23.5 degree tilt, the southern hemisphere ...
... Winter and summer are six months apart because it takes the Earth six months to get halfway around the sun. Also each season is three months long. When its winter in the northern hemisphere that means it is summer in the southern. This happens because of the 23.5 degree tilt, the southern hemisphere ...
The Young Astronomers Newsletter Volume 22 Number 3 February
... for receipt and distribution of positional measurements of minor planets, comets and other irregular natural satellites of the major planets. It is responsible for the identification, designation and orbit computations and maintains the master files of observations and orbits, and keeps track of the ...
... for receipt and distribution of positional measurements of minor planets, comets and other irregular natural satellites of the major planets. It is responsible for the identification, designation and orbit computations and maintains the master files of observations and orbits, and keeps track of the ...
Homework 1 – Exercise 1 1/9
... at the time of opposition, when it was closest to Earth. Consider two observers who are separated by a baseline equal to Earth’s diameter. If the difference in their measurements of Mars’s angular position is 33.6’’. What is the estimated distance between Earth and Mars? Express your answer in both ...
... at the time of opposition, when it was closest to Earth. Consider two observers who are separated by a baseline equal to Earth’s diameter. If the difference in their measurements of Mars’s angular position is 33.6’’. What is the estimated distance between Earth and Mars? Express your answer in both ...
Powerpoint - Physics and Astronomy
... Finding Locations from Sun Angle of Sun at noon measured from the horizon can give position on Earth ...
... Finding Locations from Sun Angle of Sun at noon measured from the horizon can give position on Earth ...
Rare Earth hypothesis
In planetary astronomy and astrobiology, the Rare Earth Hypothesis argues that the origin of life and the evolution of biological complexity such as sexually reproducing, multicellular organisms on Earth (and, subsequently, human intelligence) required an improbable combination of astrophysical and geological events and circumstances. The hypothesis argues that complex extraterrestrial life is a very improbable phenomenon and likely to be extremely rare. The term ""Rare Earth"" originates from Rare Earth: Why Complex Life Is Uncommon in the Universe (2000), a book by Peter Ward, a geologist and paleontologist, and Donald E. Brownlee, an astronomer and astrobiologist, both faculty members at the University of Washington.An alternative view point was argued by Carl Sagan and Frank Drake, among others. It holds that Earth is a typical rocky planet in a typical planetary system, located in a non-exceptional region of a common barred-spiral galaxy. Given the principle of mediocrity (also called the Copernican principle), it is probable that the universe teems with complex life. Ward and Brownlee argue to the contrary: that planets, planetary systems, and galactic regions that are as friendly to complex life as are the Earth, the Solar System, and our region of the Milky Way are very rare.