The Earth in the Solar System
... The conspicuous absence of gas between the planets in the solar system must be explained in any model of solar system formation. Before a new star reaches the main sequence it goes through a pre-main sequence evolution of gravitational collapse from a protostellar nebula. Our best information about ...
... The conspicuous absence of gas between the planets in the solar system must be explained in any model of solar system formation. Before a new star reaches the main sequence it goes through a pre-main sequence evolution of gravitational collapse from a protostellar nebula. Our best information about ...
December
... sporadically in catastrophic events: volcanoes and earthquakes! Yet volcanoes occur on worlds that you might never expect, like the tiny moon Io, orbiting Jupiter. With just 1.5% the mass of Earth despite being more than one quarter of the Earth's diameter, Io seems like an unlikely candidate for vo ...
... sporadically in catastrophic events: volcanoes and earthquakes! Yet volcanoes occur on worlds that you might never expect, like the tiny moon Io, orbiting Jupiter. With just 1.5% the mass of Earth despite being more than one quarter of the Earth's diameter, Io seems like an unlikely candidate for vo ...
A time travel of 14 billion years
... thousand times as far away as the nearest stars. It had to be a separate galaxy, comparable in size our own Milky Way but much further away. Hubble was able to measure the distances to only a handful of other galaxies, but he realised that as a rough guide he could take their apparent brightness as ...
... thousand times as far away as the nearest stars. It had to be a separate galaxy, comparable in size our own Milky Way but much further away. Hubble was able to measure the distances to only a handful of other galaxies, but he realised that as a rough guide he could take their apparent brightness as ...
Moro_Martin`s Talk - CIERA
... Quick Tour to Star and Planet Formation Stars form in clouds of dust and gas. Local density increase occurs within these clouds that portion of the cloud contracts in on itself under its own gravitational pull a protostar is formed (no fusion yet). By conservation of angular momentum, what is left ...
... Quick Tour to Star and Planet Formation Stars form in clouds of dust and gas. Local density increase occurs within these clouds that portion of the cloud contracts in on itself under its own gravitational pull a protostar is formed (no fusion yet). By conservation of angular momentum, what is left ...
Sydney Observatory night sky map January 2015
... This star chart shows the stars and constellations visible in the night sky for Sydney, Melbourne, Canberra, Hobart and Adelaide for January 2015 at about 8:30 pm (summer time) and at about 7:30 pm (local standard time) for Perth and Brisbane. For Darwin and similar locations the chart will still ap ...
... This star chart shows the stars and constellations visible in the night sky for Sydney, Melbourne, Canberra, Hobart and Adelaide for January 2015 at about 8:30 pm (summer time) and at about 7:30 pm (local standard time) for Perth and Brisbane. For Darwin and similar locations the chart will still ap ...
Earth Systems
... 3.E.1 Recognize the major components and patterns observed in the earth/moon/sun system. 3.E.1.1 Recognize that the earth is part of a system called the solar system that includes the sun (a star), planets, and many moons and the earth is the third planet from the sun in our solar system. Resources: ...
... 3.E.1 Recognize the major components and patterns observed in the earth/moon/sun system. 3.E.1.1 Recognize that the earth is part of a system called the solar system that includes the sun (a star), planets, and many moons and the earth is the third planet from the sun in our solar system. Resources: ...
Global distributions_ temperature
... annual average radiative solar flux at the top of the atmosphere) and is equal to 1368 Wm-2. S is referred to as a constant because it has not changed by more than a few percent over the last few hundred years (however, note that S has varied over longer geological time scales). The factor R2 denot ...
... annual average radiative solar flux at the top of the atmosphere) and is equal to 1368 Wm-2. S is referred to as a constant because it has not changed by more than a few percent over the last few hundred years (however, note that S has varied over longer geological time scales). The factor R2 denot ...
SWFAS August 16 Newsletter - Southwest Florida Astronomical
... Sounding the Jovian Depths Like its namesake, the queen of the gods in Roman mythology, Juno will see through the cloudy veil of Jupiter to probe its true self. Juno even carries three Lego depictions of the deities Jupiter, Juno, and the 17th-century astronomer Galileo, as well as a portrait of Gal ...
... Sounding the Jovian Depths Like its namesake, the queen of the gods in Roman mythology, Juno will see through the cloudy veil of Jupiter to probe its true self. Juno even carries three Lego depictions of the deities Jupiter, Juno, and the 17th-century astronomer Galileo, as well as a portrait of Gal ...
14.02.03APWeek22CentripetalMotion
... 1.Deimos, a satellite of Mars, has an average radius of 6.3 km. If the gravitational force between Deimos and a 3.0 kg rock at its surface is 2.5x10-2N, what is the mass of Deimos? 2. A 3.08x104kg meteorite is on exhibit in New York City. Suppose this meteorite and another meteorite are separated by ...
... 1.Deimos, a satellite of Mars, has an average radius of 6.3 km. If the gravitational force between Deimos and a 3.0 kg rock at its surface is 2.5x10-2N, what is the mass of Deimos? 2. A 3.08x104kg meteorite is on exhibit in New York City. Suppose this meteorite and another meteorite are separated by ...
Mathematics (P)review
... Light-year (LY): the distance light travels in a year (9.5 trillion km) - nearest star is Proxima Centauri @ 4.3 LY - “solar neighborhood” ~ few thousand LY - diameter of our Galaxy ~ 100,000 LY - nearest major galaxy (M31) ~ 3 Million LY - “diameter” of observable universe ~ 93 Billion LY On small ...
... Light-year (LY): the distance light travels in a year (9.5 trillion km) - nearest star is Proxima Centauri @ 4.3 LY - “solar neighborhood” ~ few thousand LY - diameter of our Galaxy ~ 100,000 LY - nearest major galaxy (M31) ~ 3 Million LY - “diameter” of observable universe ~ 93 Billion LY On small ...
Chapter 9 Gravitation Beyond Earth’s surface
... Can you feel gravity? Remember, we discussed that you can’t ! 1) Hanging from a 100 m high diving board – your arms feel stretched by the upward force of bent board. 2) Standing on a bed – your legs feel compressed by the compressed springs in the mattress. The bent diving board or the compressed sp ...
... Can you feel gravity? Remember, we discussed that you can’t ! 1) Hanging from a 100 m high diving board – your arms feel stretched by the upward force of bent board. 2) Standing on a bed – your legs feel compressed by the compressed springs in the mattress. The bent diving board or the compressed sp ...
day04
... • Edmond Halley predicted a comet would return in 1758 and every 76 years after that. (seen in 1910, 1986, and will return in 2061) Halley’s comet has an elliptical orbit extending out past Neptune. • William Herschel discovered Uranus in 1781 by accident. • After 50 years it was seen to deviate fro ...
... • Edmond Halley predicted a comet would return in 1758 and every 76 years after that. (seen in 1910, 1986, and will return in 2061) Halley’s comet has an elliptical orbit extending out past Neptune. • William Herschel discovered Uranus in 1781 by accident. • After 50 years it was seen to deviate fro ...
Astronomers Find Extremely Large Planet
... young forming stars. The fact that the FLAMINGOS survey only found silhouette disks in clusters and not peppered thoughout the immense volume of the molecular clouds supports the point of view that such clusters of stars are the birthplace for most of the stars in our galaxy. “It’s surprising that t ...
... young forming stars. The fact that the FLAMINGOS survey only found silhouette disks in clusters and not peppered thoughout the immense volume of the molecular clouds supports the point of view that such clusters of stars are the birthplace for most of the stars in our galaxy. “It’s surprising that t ...
Chapter 18 - "The Earth in Space"
... • Eclipses of the Sun and Moon – An eclipse is when the shadow of one object falls on the illuminated surface of another. – The Earth and moons shadows point away as a cone. • The inner cone of this shadow is called the umbra • The outer cone of this shadow is called the penumbra – Total solar ecli ...
... • Eclipses of the Sun and Moon – An eclipse is when the shadow of one object falls on the illuminated surface of another. – The Earth and moons shadows point away as a cone. • The inner cone of this shadow is called the umbra • The outer cone of this shadow is called the penumbra – Total solar ecli ...
Document
... Pluto has been demoted to be a “Dwarf planet” (2006) because it does not dominate its neighborhood. Charon, its large “moon,” is only about half the size of Pluto, while all the true planets are far larger than their moons. ...
... Pluto has been demoted to be a “Dwarf planet” (2006) because it does not dominate its neighborhood. Charon, its large “moon,” is only about half the size of Pluto, while all the true planets are far larger than their moons. ...
Mars
... satellites, Phobos and Deimos. Their meanings are terrible and fear respectively. The mean radius of Phobos is 21 km and 9,380 km far from Mars. Deimo is much smaller than Phobos, with radius of 12 km and 23,460 km further away from Mars. ...
... satellites, Phobos and Deimos. Their meanings are terrible and fear respectively. The mean radius of Phobos is 21 km and 9,380 km far from Mars. Deimo is much smaller than Phobos, with radius of 12 km and 23,460 km further away from Mars. ...
Astronomy Merit program @ Huntley Meadows Park
... sure to learn something. Also our policy is that the program will not proceed if there are not 2 or more adults present for the program especially those containing hikes. We will attempt to enlist adult volunteers from our center but this is not always possible so prepare for the possibility that yo ...
... sure to learn something. Also our policy is that the program will not proceed if there are not 2 or more adults present for the program especially those containing hikes. We will attempt to enlist adult volunteers from our center but this is not always possible so prepare for the possibility that yo ...
Star Groups and Big Bang Power Point
... The Expanding Universe Using Hubble’s observations, astronomers have been able to determine that the universe is expanding. The expanding universe can be thought of as a raisin cake rising in the oven. If you were able to sit on one raisin, you would see all the other raisins moving away from y ...
... The Expanding Universe Using Hubble’s observations, astronomers have been able to determine that the universe is expanding. The expanding universe can be thought of as a raisin cake rising in the oven. If you were able to sit on one raisin, you would see all the other raisins moving away from y ...
1. Star A has a distance of 3 parsecs. What is its parallax angle? 1a
... If the Sun’s central temperature increased a bit, would more or less energy be created there? Temperature increases - more energy generated in core, more pressure created which halts the contraction. If the Sun’s central temperature were to increase a little bit, why would it not be cause for worldw ...
... If the Sun’s central temperature increased a bit, would more or less energy be created there? Temperature increases - more energy generated in core, more pressure created which halts the contraction. If the Sun’s central temperature were to increase a little bit, why would it not be cause for worldw ...
SWFAS Sept 2016 Newsletter - Southwest Florida Astronomical
... Bruce and Ron Madl are seeking interested individuals to work with joint Club and Planetarium events. Mike McCauley made a motion, seconded by Joe Senich, to approve the minutes of the June 2 meeting as e-mailed. The motion carried on a voice vote. Treasurer Tony Heiner reported a June closing balan ...
... Bruce and Ron Madl are seeking interested individuals to work with joint Club and Planetarium events. Mike McCauley made a motion, seconded by Joe Senich, to approve the minutes of the June 2 meeting as e-mailed. The motion carried on a voice vote. Treasurer Tony Heiner reported a June closing balan ...
The Changing Earth Atmosphere
... Higher levels called the ionosphere =⇒ atoms completely ionized. The aurorae are located in the ionosphere. The ionosphere marks the inner edge of the magnetosphere where charged particles trapped from the solar wind are located. ...
... Higher levels called the ionosphere =⇒ atoms completely ionized. The aurorae are located in the ionosphere. The ionosphere marks the inner edge of the magnetosphere where charged particles trapped from the solar wind are located. ...
PPT Format of Slides
... 6.7 How Did the Solar System Form? Nebular contraction is followed by condensation around dust grains, known to exist in interstellar clouds such as the one shown here. Accretion then leads to larger and larger clumps; finally gravitational attraction takes over and planets form. © 2011 Pearson Edu ...
... 6.7 How Did the Solar System Form? Nebular contraction is followed by condensation around dust grains, known to exist in interstellar clouds such as the one shown here. Accretion then leads to larger and larger clumps; finally gravitational attraction takes over and planets form. © 2011 Pearson Edu ...
Chapter 6 The Solar System
... 6.7 How Did the Solar System Form? Nebular contraction is followed by condensation around dust grains, known to exist in interstellar clouds such as the one shown here. Accretion then leads to larger and larger clumps; finally gravitational attraction takes over and planets form. © 2011 Pearson Edu ...
... 6.7 How Did the Solar System Form? Nebular contraction is followed by condensation around dust grains, known to exist in interstellar clouds such as the one shown here. Accretion then leads to larger and larger clumps; finally gravitational attraction takes over and planets form. © 2011 Pearson Edu ...
NATS1311_091108_bw - The University of Texas at Dallas
... March 21st, regardless of the position of the Sun. Lent begins on Ash Wednesday, 46 days before Easter, and must contain the Lenten Moon, considered to be the last full Moon of winter. The first full Moon of spring is called the Egg Moon (or Easter Moon, or Paschal Moon) and must fall within the wee ...
... March 21st, regardless of the position of the Sun. Lent begins on Ash Wednesday, 46 days before Easter, and must contain the Lenten Moon, considered to be the last full Moon of winter. The first full Moon of spring is called the Egg Moon (or Easter Moon, or Paschal Moon) and must fall within the wee ...
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.