PowerPoint on Brief History of Astronomy
... America too where temples were built by the Mayan and Aztec empires. These were often aligned with the rising of a solstice Sun or other significant positions, such as points where the planet Venus rose and set. ...
... America too where temples were built by the Mayan and Aztec empires. These were often aligned with the rising of a solstice Sun or other significant positions, such as points where the planet Venus rose and set. ...
A Brief guide to the night Skies for those who know nothing
... tenth planet outside the orbit of Pluto, but as yet this has not been proved to exist. ...
... tenth planet outside the orbit of Pluto, but as yet this has not been proved to exist. ...
Earth and Stars
... the Earth is the Sun - all other known stars are at distances greater than 1 pc and parallax angles less than 1 arcsec. When measuring the parallax of a star, it is important to account for the star's proper motion, and the parallax of any of the 'fixed' stars used as ...
... the Earth is the Sun - all other known stars are at distances greater than 1 pc and parallax angles less than 1 arcsec. When measuring the parallax of a star, it is important to account for the star's proper motion, and the parallax of any of the 'fixed' stars used as ...
File - SMIC Physics
... • The Sun has enough hydrogen to last 5 billion years. • It produces energy by nuclear fusion • Energy is transferred by convection and radiation. ...
... • The Sun has enough hydrogen to last 5 billion years. • It produces energy by nuclear fusion • Energy is transferred by convection and radiation. ...
Sirius Astronomer - Orange County Astronomers
... A lot of the events we have are organized and held by many of the same people. We need more help with our Outreach events organized by Jim Benet. Come out to our star parties and lend a hand. Speaking of star parties, we have ANZA on July 6th and Black Star Canyon on July 13th. Of course, we have ou ...
... A lot of the events we have are organized and held by many of the same people. We need more help with our Outreach events organized by Jim Benet. Come out to our star parties and lend a hand. Speaking of star parties, we have ANZA on July 6th and Black Star Canyon on July 13th. Of course, we have ou ...
Kepler`s Third Law
... constructed his own, more accurate version. He was the first person to make significant astronomical observations with a telescope --and they were spectacular. ...
... constructed his own, more accurate version. He was the first person to make significant astronomical observations with a telescope --and they were spectacular. ...
PHYS101 Sec 001 Hour Exam No. 3 Preview 2 Page: 1 1 It
... d. a doughnut-shaped region with objects above and below the plane of the solar system. 23 Light that has been spread out to show the frequencies or colors that are present is called a. a spectrum. b. an absorption diagram. c. a speculum. d. a frequency diagram. e. an energy level diagram. 24 The Ku ...
... d. a doughnut-shaped region with objects above and below the plane of the solar system. 23 Light that has been spread out to show the frequencies or colors that are present is called a. a spectrum. b. an absorption diagram. c. a speculum. d. a frequency diagram. e. an energy level diagram. 24 The Ku ...
V1003.HW4.2013 - Earth and Environmental Sciences
... dust and aerosols were injected into the stratosphere and were quickly mixed around the globe. The increase in atmospheric aerosols increased the Earth’s reflectivity (albedo) from 0.30 to 0.31. a) What impact would this have on The Earth’s effective temperature? ...
... dust and aerosols were injected into the stratosphere and were quickly mixed around the globe. The increase in atmospheric aerosols increased the Earth’s reflectivity (albedo) from 0.30 to 0.31. a) What impact would this have on The Earth’s effective temperature? ...
Astronomy 211 EXAM 1 2003 February 6 Answer TRUE
... Answer TRUE or FALSE (not T or F) (2 pts each) 1. A kilometer (km) is about 1.6 miles. 2. The larger the magnitude, the brighter the star. 3. If in the morning the Sun is in the constellation Taurus, by the afternoon it would have moved on past the constellation Cancer. 4. The meridian is both a ver ...
... Answer TRUE or FALSE (not T or F) (2 pts each) 1. A kilometer (km) is about 1.6 miles. 2. The larger the magnitude, the brighter the star. 3. If in the morning the Sun is in the constellation Taurus, by the afternoon it would have moved on past the constellation Cancer. 4. The meridian is both a ver ...
Planets around Other Stars - Sierra College Astronomy Home Page
... The details of this motion allows us to come up with the orbital period of the planet and the average distance the planet is from the other stars star From this info, what method do we use to find the mass of the star (plus the planet)? © Sierra College Astronomy Department ...
... The details of this motion allows us to come up with the orbital period of the planet and the average distance the planet is from the other stars star From this info, what method do we use to find the mass of the star (plus the planet)? © Sierra College Astronomy Department ...
ELIZABETH KLARER: UFO Contactee and Space
... components of Alpha Centauri. These are the two larger stars, and these rotate about each other. Selo is closer to them in that vicinity, therefore Selo would receive greater intensity of radiation from these double stars. Proxima Centauri is very much farther away, but it still makes up a triplet s ...
... components of Alpha Centauri. These are the two larger stars, and these rotate about each other. Selo is closer to them in that vicinity, therefore Selo would receive greater intensity of radiation from these double stars. Proxima Centauri is very much farther away, but it still makes up a triplet s ...
List of Illustrations
... Invention of the vacuum tube – ‘Cathode rays’ and ‘canal rays’ – William Crookes: the Crookes tube and the corpuscular interpretation of cathode rays – Cathode rays are shown to move far slower than light – The discovery of the electron – Wilhelm Röntgen & the discovery of X-rays – Radioactivity; Be ...
... Invention of the vacuum tube – ‘Cathode rays’ and ‘canal rays’ – William Crookes: the Crookes tube and the corpuscular interpretation of cathode rays – Cathode rays are shown to move far slower than light – The discovery of the electron – Wilhelm Röntgen & the discovery of X-rays – Radioactivity; Be ...
PSC100 Transparant Replacement for Chapter 8 Measurement of
... astronomers spend their entire lives working on this. Even though it is critical to understanding many of the other properties of stars, we can only determine the distance to far away objects in space to about 50% accuracy. ...
... astronomers spend their entire lives working on this. Even though it is critical to understanding many of the other properties of stars, we can only determine the distance to far away objects in space to about 50% accuracy. ...
Detection Technique for Artificially-Illuminated Objects in the Outer
... implies that the ratio of artificial illumination, with an unknown spectrum, to scattered sunlight could be a strong function of wavelength. More than ∼ 103 small bodies have already been discovered in the distance range of 30–50 AU, known as the Kuiper belt of the Solar System (Petit et al., 2011). ...
... implies that the ratio of artificial illumination, with an unknown spectrum, to scattered sunlight could be a strong function of wavelength. More than ∼ 103 small bodies have already been discovered in the distance range of 30–50 AU, known as the Kuiper belt of the Solar System (Petit et al., 2011). ...
First Exam - University of Iowa Astrophysics
... 26. You look up in the night sky and see the planet Jupiter, the planet Mars, and the Moon very close together. You know that they are located in or close to one of the following. Which is it? (a) the ecliptic ∗ (b) the celestial equator (c) the zenith (d) the north celestial pole (e) the constellat ...
... 26. You look up in the night sky and see the planet Jupiter, the planet Mars, and the Moon very close together. You know that they are located in or close to one of the following. Which is it? (a) the ecliptic ∗ (b) the celestial equator (c) the zenith (d) the north celestial pole (e) the constellat ...
what`s up this month – march 2016
... The night sky looking south on 15th March The chart above shows the night sky looking south at about 21:00 on 15th March. West is to the right and east to the left. The point in the sky directly overhead is known as the Zenith or Nadir and is shown on the chart at the upper centre of the chart. The ...
... The night sky looking south on 15th March The chart above shows the night sky looking south at about 21:00 on 15th March. West is to the right and east to the left. The point in the sky directly overhead is known as the Zenith or Nadir and is shown on the chart at the upper centre of the chart. The ...
TRANSIT
... At home the Leo radiant rises at about midnight, so I was all ready for the action to begin, but nothing happened for the next hour and a half. Nervously I took a few practice photographs and noted a dozen or so sporadic meteors. Somewhere in the back of my mind the seed of doubt began to grow that ...
... At home the Leo radiant rises at about midnight, so I was all ready for the action to begin, but nothing happened for the next hour and a half. Nervously I took a few practice photographs and noted a dozen or so sporadic meteors. Somewhere in the back of my mind the seed of doubt began to grow that ...
Chapter 1 - Chabot College
... This photo shows the Andromeda Galaxy as it looked about 2 ½ million years ago. ...
... This photo shows the Andromeda Galaxy as it looked about 2 ½ million years ago. ...
1992M3. A spacecraft of mass 1,000 kilograms is in an elliptical orbit
... 1984M2. Two satellites, of masses m and 3m, respectively, are in the same circular orbit about the Earth's center, as shown in the diagram above. The Earth has mass Me and radius Re. In this orbit, which has a radius of 2Re, the satellites initially move with the same orbital speed vo but in opposi ...
... 1984M2. Two satellites, of masses m and 3m, respectively, are in the same circular orbit about the Earth's center, as shown in the diagram above. The Earth has mass Me and radius Re. In this orbit, which has a radius of 2Re, the satellites initially move with the same orbital speed vo but in opposi ...
Powerpoint file
... • Most challenging observational technique due to proximity, contrast levels and atmospheric effects (AO, coronagraphy,..) • Candidates appeared at large (~100 AU) separations and mass determination is limited by reliability of evolutionary models (if no other information) • More robust detections ( ...
... • Most challenging observational technique due to proximity, contrast levels and atmospheric effects (AO, coronagraphy,..) • Candidates appeared at large (~100 AU) separations and mass determination is limited by reliability of evolutionary models (if no other information) • More robust detections ( ...
Newton
... has slowed its rotation down to a period of one month. • The Moon now rotates synchronously. – We always see the same side of the Moon. ...
... has slowed its rotation down to a period of one month. • The Moon now rotates synchronously. – We always see the same side of the Moon. ...
Astronomers classify stars according to their physical characteristics
... KEY: Chemical Composition •Scientists study the star’s _black_ _line _ _spectrum__ to determine what it is made of. Stars vary in their composition, but most are made of _hydrogen___, _helium___, and a small amount of _other_ _elements__. ...
... KEY: Chemical Composition •Scientists study the star’s _black_ _line _ _spectrum__ to determine what it is made of. Stars vary in their composition, but most are made of _hydrogen___, _helium___, and a small amount of _other_ _elements__. ...
Brightness vs. Distance
... The POWER of the source Definition: the total amount of energy emitted by the source per second. For a star this is called “LUMINOSITY”. The unit of Energy: JOULE. The unit of Power: WATT = 1 joule/sec ...
... The POWER of the source Definition: the total amount of energy emitted by the source per second. For a star this is called “LUMINOSITY”. The unit of Energy: JOULE. The unit of Power: WATT = 1 joule/sec ...
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.