lecture 2
... the stars staying near the ecliptic – Different planets move at different speeds relative to the stars (of the visible planets, Mercury is the fastest, Saturn is the slowest) – They move in complex patterns changing their direction of motion ...
... the stars staying near the ecliptic – Different planets move at different speeds relative to the stars (of the visible planets, Mercury is the fastest, Saturn is the slowest) – They move in complex patterns changing their direction of motion ...
Numbers to Keep in Mind
... Sundials will be off by up to ~ 15 min, with the difference predictable by a couple of sine waves. The difference is known as the “equation of time”. ...
... Sundials will be off by up to ~ 15 min, with the difference predictable by a couple of sine waves. The difference is known as the “equation of time”. ...
ASTRONOMICAL ERRORS
... 9. From Bad Astronomy web site: One of the TV shopping channels sometimes sells telescopes. They had a segment bragging about the remote controlled focuser on one scope. The sales rep said it's useful for looking at "craters on the Moon... the rings of Saturn, the red spot on Jupiter or the canals o ...
... 9. From Bad Astronomy web site: One of the TV shopping channels sometimes sells telescopes. They had a segment bragging about the remote controlled focuser on one scope. The sales rep said it's useful for looking at "craters on the Moon... the rings of Saturn, the red spot on Jupiter or the canals o ...
Earth and Space Review 2016
... Direction of revolution Seasons in both the Northern and Southern Hemispheres for each location of Earth in orbit Summer and Winter Solstices Spring and Fall Equinoxes Direct and indirect light from the Sun ...
... Direction of revolution Seasons in both the Northern and Southern Hemispheres for each location of Earth in orbit Summer and Winter Solstices Spring and Fall Equinoxes Direct and indirect light from the Sun ...
⎯15 Sep Kepler attacks Mars
... was fifty-three, Kepler, twentynine. Tycho was an aristocrat, Kepler a plebian. —Koestler, The Sleepwalkers, p302 ...
... was fifty-three, Kepler, twentynine. Tycho was an aristocrat, Kepler a plebian. —Koestler, The Sleepwalkers, p302 ...
TRANSIT
... reporting the result. "Moreover, its radius should be only 1.5 times the Earth's radius, and models predict that the planet should be either rocky — like our Earth — or covered with oceans," he adds. "Liquid water is critical to life as we know it," avows Xavier Delfosse, a member of the team from G ...
... reporting the result. "Moreover, its radius should be only 1.5 times the Earth's radius, and models predict that the planet should be either rocky — like our Earth — or covered with oceans," he adds. "Liquid water is critical to life as we know it," avows Xavier Delfosse, a member of the team from G ...
FantasticTrip - Cooper Church of Christ
... answer Me. 4 "Where were you when I laid the foundations of the earth? Tell Me, if you have understanding. 5 Who determined its measurements? Surely you know! Or who stretched the line upon it? 6 To what were its foundations fastened? Or who laid its cornerstone, 7 When the morning stars sang togeth ...
... answer Me. 4 "Where were you when I laid the foundations of the earth? Tell Me, if you have understanding. 5 Who determined its measurements? Surely you know! Or who stretched the line upon it? 6 To what were its foundations fastened? Or who laid its cornerstone, 7 When the morning stars sang togeth ...
Bill Nye – Outer Space Worksheet
... 1. We have learned about the universe the same way people have always learned about the universe – by people looking up and saying … c. whoa! 2. By looking at the stars, we have learned about… c. outer space. 3. Things in space are very far apart. a. True 4. If the Earth were the size Bill Nye shows ...
... 1. We have learned about the universe the same way people have always learned about the universe – by people looking up and saying … c. whoa! 2. By looking at the stars, we have learned about… c. outer space. 3. Things in space are very far apart. a. True 4. If the Earth were the size Bill Nye shows ...
Science
... Earth is stationary in the geocentric model but moves around Sun in Sun-centered model. Retrograde motion is real (planets really go backward) in geocentric model but only apparent (planets don’t really turn around) in Suncentered model. Stellar parallax is expected in the Sun-centered model but not ...
... Earth is stationary in the geocentric model but moves around Sun in Sun-centered model. Retrograde motion is real (planets really go backward) in geocentric model but only apparent (planets don’t really turn around) in Suncentered model. Stellar parallax is expected in the Sun-centered model but not ...
Student Text, pp. 278-284
... Although Copernicus was at the forefront of the scientific revolution, his explanation of the orbits of the planets did not account for slight irregularities observed over long periods. The orbits were not exactly circles. More analysis was needed to find the true shapes of the orbits. The next infl ...
... Although Copernicus was at the forefront of the scientific revolution, his explanation of the orbits of the planets did not account for slight irregularities observed over long periods. The orbits were not exactly circles. More analysis was needed to find the true shapes of the orbits. The next infl ...
File - Earth and Environmental Science and Biology
... near the poles. In addition, extensive ice and snow at the poles reflects back to space some of the sun's energy that reaches the earth. Much more sunshine is absorbed to heat the earth at the equator. This means the land at the equator becomes hotter than the poles. If we had no atmosphere or ocean ...
... near the poles. In addition, extensive ice and snow at the poles reflects back to space some of the sun's energy that reaches the earth. Much more sunshine is absorbed to heat the earth at the equator. This means the land at the equator becomes hotter than the poles. If we had no atmosphere or ocean ...
SigAssignment
... nighttime sky. It primarily consists of 7 stars and t when you connect the dots, the stars take place of a spoon or ladle. There are many great stories and legends revolving around this design in the sky, but there are also scientific facts to be discovered as well. Here is some information on two o ...
... nighttime sky. It primarily consists of 7 stars and t when you connect the dots, the stars take place of a spoon or ladle. There are many great stories and legends revolving around this design in the sky, but there are also scientific facts to be discovered as well. Here is some information on two o ...
Big Bang PPT
... the objects near the very edge of the universe are the oldest objects in the universe. The most distant known objects in ...
... the objects near the very edge of the universe are the oldest objects in the universe. The most distant known objects in ...
The New Astronomy and Cosmology of the Scientific Revolution
... Copernicus’s major work, On the Revolutions of the Heavenly Spheres, was published in 1543, the year of his death. In this great work, Copernicus effected a radical transformation of the system developed by Ptolemy (ca. 87–150 CE). Contrary to the Ptolemaic system, Copernicus posited a heliocentric ...
... Copernicus’s major work, On the Revolutions of the Heavenly Spheres, was published in 1543, the year of his death. In this great work, Copernicus effected a radical transformation of the system developed by Ptolemy (ca. 87–150 CE). Contrary to the Ptolemaic system, Copernicus posited a heliocentric ...
1 Exoplanets 2 Types of Exoplanets
... The habitable zone is the region around a star in which the conditions are just right for a planet to have liquid water on its surface. Here on Earth, so far as we know, all life must have access to liquid water to survive. Therefore, a planet is considered “habitable” if it has liquid water. This z ...
... The habitable zone is the region around a star in which the conditions are just right for a planet to have liquid water on its surface. Here on Earth, so far as we know, all life must have access to liquid water to survive. Therefore, a planet is considered “habitable” if it has liquid water. This z ...
Space Exploration Review Notes
... Space Shuttles transport personnel and equipment to and from space. They are a big advantage over rockets since they are reusable and, therefore, cheaper. Space Station is an international project to set up the first permanent experimental station in orbit. It provides an orbital laboratory for rese ...
... Space Shuttles transport personnel and equipment to and from space. They are a big advantage over rockets since they are reusable and, therefore, cheaper. Space Station is an international project to set up the first permanent experimental station in orbit. It provides an orbital laboratory for rese ...
Gravitation
... A satellite is moving around the Earth in a circular orbit. Over the course of an orbit, the Earth’s gravitational force 1. does positive work on the satellite 2. does negative work on the satellite 3. does positive work on the satellite during part of the orbit and negative work on the satellite du ...
... A satellite is moving around the Earth in a circular orbit. Over the course of an orbit, the Earth’s gravitational force 1. does positive work on the satellite 2. does negative work on the satellite 3. does positive work on the satellite during part of the orbit and negative work on the satellite du ...
Rotation
... Keisha wants to show Amy what happens during one Earth day. Keisha holds a small globe representing Earth, and Amy holds a large ball representing the Sun. What should Keisha do to show Amy what happens during one Earth day? A. Keisha should move the globe in one complete circle around ...
... Keisha wants to show Amy what happens during one Earth day. Keisha holds a small globe representing Earth, and Amy holds a large ball representing the Sun. What should Keisha do to show Amy what happens during one Earth day? A. Keisha should move the globe in one complete circle around ...
Ans. - Testlabz.com
... Ans. A football which is placed near us will appear more bigger than a football placed at a distance of 100 m. Q.33. The star Alpha Centauri is at a distance of about 40,000, 000,000,000 km from the Earth. Can you read this distance in kilometers conveniently? Ans. 40,000,000,000,000 = 4 × 1013 km. ...
... Ans. A football which is placed near us will appear more bigger than a football placed at a distance of 100 m. Q.33. The star Alpha Centauri is at a distance of about 40,000, 000,000,000 km from the Earth. Can you read this distance in kilometers conveniently? Ans. 40,000,000,000,000 = 4 × 1013 km. ...
Notes: Astronomy and Groups of Stars
... The core of stars is very hot. The temperatures observed are of the outer layer of the star. ...
... The core of stars is very hot. The temperatures observed are of the outer layer of the star. ...
Sirius Astronomer - Orange County Astronomers
... ever seen in Long Beach. When all the lights were turned out, I could not believe what I saw. There was a ribbon of light stretching across the sky. I asked the counselor what it was. She replied, “That’s a galaxy.” That’s when I learned to appreciate a dark sky, and to realize that my city did not ...
... ever seen in Long Beach. When all the lights were turned out, I could not believe what I saw. There was a ribbon of light stretching across the sky. I asked the counselor what it was. She replied, “That’s a galaxy.” That’s when I learned to appreciate a dark sky, and to realize that my city did not ...
Chapter 1
... tilt and direction from year to year • The northern and southern hemispheres alternate receiving (on a yearly cycle) the majority of direct light from the Sun • This leads to the seasons! ...
... tilt and direction from year to year • The northern and southern hemispheres alternate receiving (on a yearly cycle) the majority of direct light from the Sun • This leads to the seasons! ...
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.