TAP 702- 6: Binary stars - Teaching Advanced Physics
... When the stars are at C and the point diametrically opposite to C respectively, then both will have their 589.0 nm spectral line red shifted by 0.13 nm, as both will have the same velocity relative to the Earth (question 4). When they move towards A and B, however, their velocities relative to Earth ...
... When the stars are at C and the point diametrically opposite to C respectively, then both will have their 589.0 nm spectral line red shifted by 0.13 nm, as both will have the same velocity relative to the Earth (question 4). When they move towards A and B, however, their velocities relative to Earth ...
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 ...
Astronomy Chapter 11 – Meteors, Comets and Asteroids A. Main
... radioactive material, which can be used to determine the age of the meteorite. Most have been dated to be around 4.5 billion years old. ⇒ In some meteorites the chondrules are embedded in a black, carbon-rich, coal-like substance. These meteorites contain organic compounds including amino acids, whi ...
... radioactive material, which can be used to determine the age of the meteorite. Most have been dated to be around 4.5 billion years old. ⇒ In some meteorites the chondrules are embedded in a black, carbon-rich, coal-like substance. These meteorites contain organic compounds including amino acids, whi ...
Measuring Our Universe
... wavelengths of light that were emitted by various chemical elements, thus proving that Fraunhofer lines represent absorption of light from the Sun by these elements (see Figure 6). This was the beginning of a new science, called spectroscopy, that enabled astronomers to identify the chemical composi ...
... wavelengths of light that were emitted by various chemical elements, thus proving that Fraunhofer lines represent absorption of light from the Sun by these elements (see Figure 6). This was the beginning of a new science, called spectroscopy, that enabled astronomers to identify the chemical composi ...
teaching galileo? get to know riccioli! what a forgotten italian
... But a significant portion of the Atlas Coelestis is devoted ...
... But a significant portion of the Atlas Coelestis is devoted ...
Colorado Model Solar System
... The model is unrealistic in one respect, however. All of the planets have been arranged roughly in a straight line on the same side of the Sun, and hence the separation from one planet to the next is as small as it can possibly be. The last time all nine planets were lined up this well in the real s ...
... The model is unrealistic in one respect, however. All of the planets have been arranged roughly in a straight line on the same side of the Sun, and hence the separation from one planet to the next is as small as it can possibly be. The last time all nine planets were lined up this well in the real s ...
Microlensing Studies in Crowded Fields
... • OGLE-2005-BLG-390 was a star ~9.6 Rsun and planet of ~5Mearth. • An Earth mass planet at the same location around that giant star would have given a ~3% deviation. • A Moon mass object around a Sun like star would have given ~1% deviation lasting over only one hour. • This kind of deviation will b ...
... • OGLE-2005-BLG-390 was a star ~9.6 Rsun and planet of ~5Mearth. • An Earth mass planet at the same location around that giant star would have given a ~3% deviation. • A Moon mass object around a Sun like star would have given ~1% deviation lasting over only one hour. • This kind of deviation will b ...
Seeing Through the Clouds of Venus
... A couple of things to know… • The sun gets ~6% more luminous every 1 billion years • As the sun gets brighter (hotter) with time, the region around the star where habitable planetary temperatures are possible gets pushed outward At a later Sme: Sun is brighter ...
... A couple of things to know… • The sun gets ~6% more luminous every 1 billion years • As the sun gets brighter (hotter) with time, the region around the star where habitable planetary temperatures are possible gets pushed outward At a later Sme: Sun is brighter ...
The Sky and its Motions
... • All outer planets (Mars, Jupiter, Saturn, Uranus, Neptune and Pluto) generally appear to move eastward along the Ecliptic. • The inner planets Mercury and Venus can never be seen at large angular distance from the sun and appear only as morning or evening stars. ...
... • All outer planets (Mars, Jupiter, Saturn, Uranus, Neptune and Pluto) generally appear to move eastward along the Ecliptic. • The inner planets Mercury and Venus can never be seen at large angular distance from the sun and appear only as morning or evening stars. ...
Comets, Asteroids, and Meteors- Oh My!
... • Definition: objects that are too small and numerous to be considered planets • Rocky – 75% of all asteroids • Iron (metals) – 7% of all asteroids • Mixed (rock and iron blended) – 18% of all asteroids ...
... • Definition: objects that are too small and numerous to be considered planets • Rocky – 75% of all asteroids • Iron (metals) – 7% of all asteroids • Mixed (rock and iron blended) – 18% of all asteroids ...
solar system-where are we? - Iowa State University Extension and
... is the Moon, and they are the Earth. Have the students poke a hole at the bottom of the ball so they can stick their pencil into the ball and use it as a handle. Then have the students hold their foam balls towards the light. Have the students slowly turn at a counterclockwise direction since this i ...
... is the Moon, and they are the Earth. Have the students poke a hole at the bottom of the ball so they can stick their pencil into the ball and use it as a handle. Then have the students hold their foam balls towards the light. Have the students slowly turn at a counterclockwise direction since this i ...
of the outer planets are gas
... This gas giant is the largest planet -about 300 times the mass of Earth. This gas giant has the fastest rotation -- about 0.41% relative to Earth. All the gas giants have rings; it isn't just Saturn. This gas giant has a Great Red Spot, which is a giant storm, that is twice as big as Earth. This pla ...
... This gas giant is the largest planet -about 300 times the mass of Earth. This gas giant has the fastest rotation -- about 0.41% relative to Earth. All the gas giants have rings; it isn't just Saturn. This gas giant has a Great Red Spot, which is a giant storm, that is twice as big as Earth. This pla ...
Sammy Nagel · Annie Jump Cannon
... remember the letters. the letters were O B A F G K M. The mnemonic was "Oh, be a fine girlkiss me" The O is the hottest star. The M is the coolest star. G is the same as the sun. The hottest two stars are O and B. They are both blue in color. They also call it Morgan- Keenan spectral classification, ...
... remember the letters. the letters were O B A F G K M. The mnemonic was "Oh, be a fine girlkiss me" The O is the hottest star. The M is the coolest star. G is the same as the sun. The hottest two stars are O and B. They are both blue in color. They also call it Morgan- Keenan spectral classification, ...
Special Relativity:
... motion of the Earth about the sun by studying the speed of light from a distant star as the Earth went towards it and perpendicular to it as it orbited. (image from scienceworld.wolfram.com) ...
... motion of the Earth about the sun by studying the speed of light from a distant star as the Earth went towards it and perpendicular to it as it orbited. (image from scienceworld.wolfram.com) ...
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... Pupils may complete the summary as follows: Astronomers are excited, because a new solar system with seven planets has been found. The planets circle around a dwarf star, called Trappist-1. Astronomers found the dwarf star Trappist-1 with a telescope. When they looked at it with stronger and bigger ...
... Pupils may complete the summary as follows: Astronomers are excited, because a new solar system with seven planets has been found. The planets circle around a dwarf star, called Trappist-1. Astronomers found the dwarf star Trappist-1 with a telescope. When they looked at it with stronger and bigger ...
Venus is a rocky planet very similar in size and surface gravity to
... reaches 470 C - hot enough to melt lead - and the atmospheric pressure is like that a kilometre under the ocean on Earth. Despite the extreme surface conditions, several Russian spacecraft landed on Venus in the 1970s and 1980s and sent back photos (below) for a few hours. ...
... reaches 470 C - hot enough to melt lead - and the atmospheric pressure is like that a kilometre under the ocean on Earth. Despite the extreme surface conditions, several Russian spacecraft landed on Venus in the 1970s and 1980s and sent back photos (below) for a few hours. ...
June 2012 - smile2340
... Portage County has a longer amount of daylight than Texas, Florida, and Hawaii on this day. In fact Portage County has 15 ½ hours of sunlight on June 20th. Compare that to Austin, TX where the sun rises at 6:30 a.m. and sets at 8:36 p.m. (14.1 hours of sunlight); Key West, Fl where sunrise is 6:39 a ...
... Portage County has a longer amount of daylight than Texas, Florida, and Hawaii on this day. In fact Portage County has 15 ½ hours of sunlight on June 20th. Compare that to Austin, TX where the sun rises at 6:30 a.m. and sets at 8:36 p.m. (14.1 hours of sunlight); Key West, Fl where sunrise is 6:39 a ...
Constellations
... sun, moon and planets. • The Earth, sun, moon and planets follow an imaginary line called the ecliptic (indicated by dashes on a Planisphere) ...
... sun, moon and planets. • The Earth, sun, moon and planets follow an imaginary line called the ecliptic (indicated by dashes on a Planisphere) ...
The Search for Extrasolar Earth-like Planets
... evidence of its motion about the common planet-star center of mass, and thus is an indirect detection of a planet. Because only the star is monitored, only the planet’s (minimum) mass and orbital parameters can be measured. The first extrasolar giant planet discovered to orbit a nearby sun-like star ...
... evidence of its motion about the common planet-star center of mass, and thus is an indirect detection of a planet. Because only the star is monitored, only the planet’s (minimum) mass and orbital parameters can be measured. The first extrasolar giant planet discovered to orbit a nearby sun-like star ...
THE SUN: OUR STAR
... years later, the surface of the Sun will be 3.3 times the size it is now and have a temperature of about 4300 degrees. The temperature on Earth will increase by 100 degrees, causing all the seas to evaporate and destroying life on Earth as we know it. Within another 250 million years, the Sun will g ...
... years later, the surface of the Sun will be 3.3 times the size it is now and have a temperature of about 4300 degrees. The temperature on Earth will increase by 100 degrees, causing all the seas to evaporate and destroying life on Earth as we know it. Within another 250 million years, the Sun will g ...
PDF version - Caltech Astronomy
... were still restricted to the visible spectrum. Then the development of radar and rockets during World War II opened the radio and ultraviolet regimes to astronomers. To detect UV radiation, rockets had to carry telescopes above the atmosphere. By mid-century, inroads were also being made into the ne ...
... were still restricted to the visible spectrum. Then the development of radar and rockets during World War II opened the radio and ultraviolet regimes to astronomers. To detect UV radiation, rockets had to carry telescopes above the atmosphere. By mid-century, inroads were also being made into the ne ...
Advanced AMG EOC Review 2014-2015
... 59. Know the phases of the moon. 60. How did the moon form? 61. Describe how a solar eclipse occurs. 62. Describe how a lunar eclipse occurs. 63. What universal law did Newton propose that explains the motion of planets and moons? 64. What is the nebular hypothesis for the formation of the solar sys ...
... 59. Know the phases of the moon. 60. How did the moon form? 61. Describe how a solar eclipse occurs. 62. Describe how a lunar eclipse occurs. 63. What universal law did Newton propose that explains the motion of planets and moons? 64. What is the nebular hypothesis for the formation of the solar sys ...
Jan 2015 - Bluewater Astronomical Society
... greatest western elongation which is seen in the dawn sky. These terms are applied to the other interior planet Venus as well. Because Mercury takes only 116 days to return to the same place relative to the sun (its synodic period), there are about three of each elongation each year where Mercury ge ...
... greatest western elongation which is seen in the dawn sky. These terms are applied to the other interior planet Venus as well. Because Mercury takes only 116 days to return to the same place relative to the sun (its synodic period), there are about three of each elongation each year where Mercury ge ...
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.