lecture2
... We live on a rotating sphere (Earth) that receives lights only from one source (the Sun). If here is day, on the other side of Earth it is night. So, how do we synch the time across the planet? The time for many astronomical events is given in Universal Time (UT), which is (approximately) the local ...
... We live on a rotating sphere (Earth) that receives lights only from one source (the Sun). If here is day, on the other side of Earth it is night. So, how do we synch the time across the planet? The time for many astronomical events is given in Universal Time (UT), which is (approximately) the local ...
Document
... • Nebula: New stars form in a cloud of gas and dust. The gas and dust are pulled together by gravity in a ball and gets very dense. Temperature increases, and nuclear fusion begins and the ball of gas and dust starts to glow. • Stars don’t live forever. Stars expand as it grows old. After the hydrog ...
... • Nebula: New stars form in a cloud of gas and dust. The gas and dust are pulled together by gravity in a ball and gets very dense. Temperature increases, and nuclear fusion begins and the ball of gas and dust starts to glow. • Stars don’t live forever. Stars expand as it grows old. After the hydrog ...
in the Solar System!
... The inner solar system contains Mercury, Venus, Earth and Mars. These four planets are closest to the Sun. The outer solar system contains Jupiter, Saturn, Uranus, Neptune and Pluto. The inner planets are separated ...
... The inner solar system contains Mercury, Venus, Earth and Mars. These four planets are closest to the Sun. The outer solar system contains Jupiter, Saturn, Uranus, Neptune and Pluto. The inner planets are separated ...
Universe Now - Course Pages of Physics Department
... – The planets are orbiting in the same direction (also the rotation direction of the Sun), and most of them rotate in the same direction (except Venus and Uranus). – Different estimations of age: according to radiometric dating of meteorites, the age is at least 4.56 billion years; whereas, based on ...
... – The planets are orbiting in the same direction (also the rotation direction of the Sun), and most of them rotate in the same direction (except Venus and Uranus). – Different estimations of age: according to radiometric dating of meteorites, the age is at least 4.56 billion years; whereas, based on ...
On the probability of habitable planets.
... fact, our experience on Earth has told us that the requirement for life is liquid water, regardless of mean temperature and pressure (Brack, 1993). Living organisms can exist and thrive in almost any conditions on Earth if liquid water is available (Rothschild and Mancinelli 2001). Conversely, no cr ...
... fact, our experience on Earth has told us that the requirement for life is liquid water, regardless of mean temperature and pressure (Brack, 1993). Living organisms can exist and thrive in almost any conditions on Earth if liquid water is available (Rothschild and Mancinelli 2001). Conversely, no cr ...
How long does it take sunlight to reach the Earth?
... which means the light we're seeing left the surface of those stars millions of years ago. For example, the galaxy M109 is located about 83.5 million lightyears away. ...
... which means the light we're seeing left the surface of those stars millions of years ago. For example, the galaxy M109 is located about 83.5 million lightyears away. ...
space tech - Project Jugaad
... One of the first people to make a good measurement of the distance to a planet was the great astronomer Gian Domenico Cassini. In 1672, Cassini used a technique called parallax to measure the distance to Mars. You can understand parallax by holding your thumb up at arm's length and looking at it f ...
... One of the first people to make a good measurement of the distance to a planet was the great astronomer Gian Domenico Cassini. In 1672, Cassini used a technique called parallax to measure the distance to Mars. You can understand parallax by holding your thumb up at arm's length and looking at it f ...
Getting to Know: Rotation, Orbits, and the Seasons
... rotates in the opposite direction of Earth, and Uranus is turned on its side so its rotation is at approximately a 90º angle to that of Earth. A few moons and other small bodies in our solar system also turn clockwise. ...
... rotates in the opposite direction of Earth, and Uranus is turned on its side so its rotation is at approximately a 90º angle to that of Earth. A few moons and other small bodies in our solar system also turn clockwise. ...
Lecture 2 - Physics and Astronomy
... earth around the sun If you follow a particular star on successive evenings, you will find that it rises approximately 4 minutes earlier each night, or 2 hours earlier each month ...
... earth around the sun If you follow a particular star on successive evenings, you will find that it rises approximately 4 minutes earlier each night, or 2 hours earlier each month ...
The Sun and Space Objects
... equator….Spring is March 21st and Fall is September 22nd. (12 hours of daylight and 12 hours of night) 4. The sun is a star that is made up of the 2 gases hydrogen and ________. helium ...
... equator….Spring is March 21st and Fall is September 22nd. (12 hours of daylight and 12 hours of night) 4. The sun is a star that is made up of the 2 gases hydrogen and ________. helium ...
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 ...
Formation of Solar System
... been filled with dust grains, small ice particles etc plus H and He as gases. As protosun formed it heated central part leaving outer parts at 50K. In inner section everything except materials with high condensation temperatures were vaporised i.e.Fe,Si,Mg S,Al,Ca and Ni and their oxides remained. P ...
... been filled with dust grains, small ice particles etc plus H and He as gases. As protosun formed it heated central part leaving outer parts at 50K. In inner section everything except materials with high condensation temperatures were vaporised i.e.Fe,Si,Mg S,Al,Ca and Ni and their oxides remained. P ...
Lecture - faculty
... Ptolemaic model failed to reproduce the observations Also, the model is not really based on uniform circular motion So Copernicus favors the heliocentric (Sun-centered) model Has a natural explanation for apparent retrograde motion of ...
... Ptolemaic model failed to reproduce the observations Also, the model is not really based on uniform circular motion So Copernicus favors the heliocentric (Sun-centered) model Has a natural explanation for apparent retrograde motion of ...
Earth Space Systems Semester 1 Exam Astronomy Vocabulary Astronomical Unit-
... Nuclear Fusion The process by which Hydrogen atoms join or fuse together in the Sun’s core to form Helium. ...
... Nuclear Fusion The process by which Hydrogen atoms join or fuse together in the Sun’s core to form Helium. ...
Celestial Objects
... Jupiter, the largest planet in the solar system, also has some of the largest moons in the solar system. Jupiter’s largest moons are called Ganymede, Io, Callisto, and Europa. These are known as the Galilean moons because they were discovered by the Italian scientist Galileo Galilei. The telescope w ...
... Jupiter, the largest planet in the solar system, also has some of the largest moons in the solar system. Jupiter’s largest moons are called Ganymede, Io, Callisto, and Europa. These are known as the Galilean moons because they were discovered by the Italian scientist Galileo Galilei. The telescope w ...
Earth - Harding University
... • atmospheric pressure equiv. to pressure 1 km deep in oceans • no oxygen, no water, … • perhaps more than any other planet, makes us ask: how did it end up so different from Earth? ...
... • atmospheric pressure equiv. to pressure 1 km deep in oceans • no oxygen, no water, … • perhaps more than any other planet, makes us ask: how did it end up so different from Earth? ...
april 2008 - Holt Planetarium
... traveled all the way to Leo and be very close to the bright star Regulus (more about Regulus later). Our knowledge of Mars grows daily with the two rovers Spirit and Opportunity still working after four years on the surface. In orbit, several spacecraft are in operation with a new arrival expected i ...
... traveled all the way to Leo and be very close to the bright star Regulus (more about Regulus later). Our knowledge of Mars grows daily with the two rovers Spirit and Opportunity still working after four years on the surface. In orbit, several spacecraft are in operation with a new arrival expected i ...
The Solar System Worksheet - Laureate International College
... < to see how large the Sun is compared to this planet < boundary between the inside & outside of the Sun < yellow part we see from Earth (coolest layer ~ 5500°C) < large, often curved, bright stream of particles < extends outward from the photosphere into the corona < layer outside the core (plasma ...
... < to see how large the Sun is compared to this planet < boundary between the inside & outside of the Sun < yellow part we see from Earth (coolest layer ~ 5500°C) < large, often curved, bright stream of particles < extends outward from the photosphere into the corona < layer outside the core (plasma ...
Astronomy 100 Homework #2 Solutions 1, Problem 3‐27 (2 pts
... 4. Problem 4‐28 (2 pts). When visiting another planet, (b) your mass would be the same as on Earth, but your weight would be different. Weight depends on the strength of gravity. 5. Problem 4‐34 (2 pts). If Earth were twice as far from the Sun, the force of gravity attracting Earth to the sun wo ...
... 4. Problem 4‐28 (2 pts). When visiting another planet, (b) your mass would be the same as on Earth, but your weight would be different. Weight depends on the strength of gravity. 5. Problem 4‐34 (2 pts). If Earth were twice as far from the Sun, the force of gravity attracting Earth to the sun wo ...
Topic 2: Measuring the Earth
... Evidence for the shape of the Earth: - Objects disappear over the horizon from the bottom up - During lunar eclipses, the Earth’s shadow moves across the face of the moon blocking it out. The shadow is larger than the moon and curved. - The altitude of the North Star (Polaris) varies with an obser ...
... Evidence for the shape of the Earth: - Objects disappear over the horizon from the bottom up - During lunar eclipses, the Earth’s shadow moves across the face of the moon blocking it out. The shadow is larger than the moon and curved. - The altitude of the North Star (Polaris) varies with an obser ...
Students Find Jupiter-sized Oddball Planet
... professional teams announced their own observations of the same transit. We are very encouraged that our results compare so favourably with those obtained from bigger European facilities, and that our results constrain tightly the nature of HD 80606b and its unusual orbit." "For example, spectroscop ...
... professional teams announced their own observations of the same transit. We are very encouraged that our results compare so favourably with those obtained from bigger European facilities, and that our results constrain tightly the nature of HD 80606b and its unusual orbit." "For example, spectroscop ...
TESSMANN PLANETARIUM GUIDE TO THE SOLAR SYSTEM
... In olden days, people thought this path was special and created 12 pictures made up of the stars along this path. They called these pictures the Zodiac - just another word for zoo, as most of the pictures were of animals. Of course, these days, we call celestial pictures of stars constellations. ...
... In olden days, people thought this path was special and created 12 pictures made up of the stars along this path. They called these pictures the Zodiac - just another word for zoo, as most of the pictures were of animals. Of course, these days, we call celestial pictures of stars constellations. ...
Extraterrestrial life
Extraterrestrial life is life that does not originate from Earth. It is also called alien life, or, if it is a sentient and/or relatively complex individual, an ""extraterrestrial"" or ""alien"" (or, to avoid confusion with the legal sense of ""alien"", a ""space alien""). These as-yet-hypothetical life forms range from simple bacteria-like organisms to beings with civilizations far more advanced than humanity. Although many scientists expect extraterrestrial life to exist, so far no unambiguous evidence for its existence exists.The science of extraterrestrial life is known as exobiology. The science of astrobiology also considers life on Earth as well, and in the broader astronomical context. Meteorites that have fallen to Earth have sometimes been examined for signs of microscopic extraterrestrial life. Since the mid-20th century, there has been an ongoing search for signs of extraterrestrial intelligence, from radios used to detect possible extraterrestrial signals, to telescopes used to search for potentially habitable extrasolar planets. It has also played a major role in works of science fiction. Over the years, science fiction works, especially Hollywood's involvement, has increased the public's interest in the possibility of extraterrestrial life. Some encourage aggressive methods to try to get in contact with life in outer space, whereas others argue that it might be dangerous to actively call attention to Earth.