Extra-Solar Planets
... distance from the star. WHY? •The star needs to have the right mass. WHY? ...
... distance from the star. WHY? •The star needs to have the right mass. WHY? ...
Our Universe - Etiwanda E
... A piece of rock made up of material similar to a planet. Most asteroids are between the orbits of Mars and Jupiter captured by gravity. Some asteroids are the moons of planets. ...
... A piece of rock made up of material similar to a planet. Most asteroids are between the orbits of Mars and Jupiter captured by gravity. Some asteroids are the moons of planets. ...
Components of the Solar System Learning Targets
... Target 8: Comets are mixtures of rock, ice and dust. They travel in LONG elliptical orbits. There is a solid inner part that is called a nucleus. As the comet gets closer to the sun, the heat from the sun causes the solid part to melt and we see the particles as the sun shines on them. This is the t ...
... Target 8: Comets are mixtures of rock, ice and dust. They travel in LONG elliptical orbits. There is a solid inner part that is called a nucleus. As the comet gets closer to the sun, the heat from the sun causes the solid part to melt and we see the particles as the sun shines on them. This is the t ...
SHORT ANSWER. Answer the questions, showingh your work for
... 40) Suppose a star four times more massive than our Sun has a planet the same mass as Earth, orbiting at a distance of 1 AU. a. What is the orbital period P of the planet (in years)? ...
... 40) Suppose a star four times more massive than our Sun has a planet the same mass as Earth, orbiting at a distance of 1 AU. a. What is the orbital period P of the planet (in years)? ...
Formation of the Solar System
... From statistics of detections, we estimate about 20% of Sun-like stars have habitable planet near Earth-size (1-2 Earth radii)! Most are probably around the most common kind of star, red dwarf (M class) stars. Since red dwarfs are dim, planets have small orbits to be in Habitable Zone. Leads to stro ...
... From statistics of detections, we estimate about 20% of Sun-like stars have habitable planet near Earth-size (1-2 Earth radii)! Most are probably around the most common kind of star, red dwarf (M class) stars. Since red dwarfs are dim, planets have small orbits to be in Habitable Zone. Leads to stro ...
Early Observers (The Beginnings of Astronomy)
... Explained why planets orbit the Sun, and why moons orbit planets Newton’s Law of Motion Newton’s Law of Gravitation Completed the work of Copernicus, Tycho, Kepler, and Galileo ...
... Explained why planets orbit the Sun, and why moons orbit planets Newton’s Law of Motion Newton’s Law of Gravitation Completed the work of Copernicus, Tycho, Kepler, and Galileo ...
The Sun, The Moon and The Earth
... Moon • A Moon is a natural satellite or object that orbits a planet. • The earth has one moon which you can often see in the night sky. • Many sciences believe it was formed millions of years ago when the earth was still young. ...
... Moon • A Moon is a natural satellite or object that orbits a planet. • The earth has one moon which you can often see in the night sky. • Many sciences believe it was formed millions of years ago when the earth was still young. ...
Solutions to test #1 taken on Monday
... 19. (4) What configuration of the Earth, Sun, and Moon gives rise to Neap Tides (lowest high tides)? Draw a picture if that would help. ...
... 19. (4) What configuration of the Earth, Sun, and Moon gives rise to Neap Tides (lowest high tides)? Draw a picture if that would help. ...
*Students will be required to draw and label the solar system.
... system. The sun rising and setting each day is a pattern. There is a full moon each month. 2. What are the positions of the The planets in order from the sun are planets in relationship to the sun? Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune. Pluto is still in the solar system b ...
... system. The sun rising and setting each day is a pattern. There is a full moon each month. 2. What are the positions of the The planets in order from the sun are planets in relationship to the sun? Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune. Pluto is still in the solar system b ...
PDF
... much closer to their parent star than is the case in the Solar System, and proposed Doppler spectroscopy and the transit method to detect super-Jupiters in short orbits. Four decades later, on 9 January 1992, the first confirmed detection of an exoplanet came with the discovery of several terrestria ...
... much closer to their parent star than is the case in the Solar System, and proposed Doppler spectroscopy and the transit method to detect super-Jupiters in short orbits. Four decades later, on 9 January 1992, the first confirmed detection of an exoplanet came with the discovery of several terrestria ...
Jeopardy Questions
... atmosphere or a pane of glass) that only allows certain wavelengths of light through. For a planet, like the Earth or Venus, the atmosphere allows in UV and visible light, but blocks some infrared light. The Earth radiates its blackbody emission in the infrared, but some of that is blocked, so the h ...
... atmosphere or a pane of glass) that only allows certain wavelengths of light through. For a planet, like the Earth or Venus, the atmosphere allows in UV and visible light, but blocks some infrared light. The Earth radiates its blackbody emission in the infrared, but some of that is blocked, so the h ...
Terrestrial planets
... Gas giants are larger and more massive than terrestrial planets, but much less dense, and are mainly composed of rock and metal. All four gas giants have ring systems made of dust and icy debris that orbit the planets. ...
... Gas giants are larger and more massive than terrestrial planets, but much less dense, and are mainly composed of rock and metal. All four gas giants have ring systems made of dust and icy debris that orbit the planets. ...
From the Everett and Seattle Astronomical
... in fact, that their orbital periods are often only a few weeks or even a few days. In our solar system, Mercury orbits closest to the Sun, but it still takes 88 days to go around once. Scientists have coined the term “hot Jupiters” to describe these gas giants orbiting so close to their suns. But th ...
... in fact, that their orbital periods are often only a few weeks or even a few days. In our solar system, Mercury orbits closest to the Sun, but it still takes 88 days to go around once. Scientists have coined the term “hot Jupiters” to describe these gas giants orbiting so close to their suns. But th ...
Astronomy Notes
... collapsing mass is under great pressure and heats up and is called a _____________. (This kind of temperature change is called an ___________ ____________ ______) 4. ________________________ - if the core of this collapsing mass gets hot enough and it is now a star. 5. Eventually, __________________ ...
... collapsing mass is under great pressure and heats up and is called a _____________. (This kind of temperature change is called an ___________ ____________ ______) 4. ________________________ - if the core of this collapsing mass gets hot enough and it is now a star. 5. Eventually, __________________ ...
Members of the Solar System
... Solar System-the sun and all of the bodies that orbit it make up the solar system. This includes the planets and their moons, as well as comets, asteroids, meteoroids, and any other bits of rock or dust. The main parts of our solar system are eight planets, an asteroi d belt, and three dwarf planets ...
... Solar System-the sun and all of the bodies that orbit it make up the solar system. This includes the planets and their moons, as well as comets, asteroids, meteoroids, and any other bits of rock or dust. The main parts of our solar system are eight planets, an asteroi d belt, and three dwarf planets ...
Earth Science – Quiz 2
... 38. Compared to Earth's atmosphere, the atmosphere of Mars has surface pressures that are ________. A) 3 times those on Earth; major gases are water vapor and carbon dioxide B) 0.1 times those on Earth; major gases are water vapor and carbon dioxide C) one-half those on Earth; main gases are methane ...
... 38. Compared to Earth's atmosphere, the atmosphere of Mars has surface pressures that are ________. A) 3 times those on Earth; major gases are water vapor and carbon dioxide B) 0.1 times those on Earth; major gases are water vapor and carbon dioxide C) one-half those on Earth; main gases are methane ...
5) Earth in space and time. The student understands the solar
... commonest element that is likely to form a very dense molten metal phase, tends to congregate towards planetary interiors. The main zones in the solid Earth are the very dense iron-rich metallic core, the less dense magnesium-silicate-rich mantle and the relatively thin, light crust composed mainly ...
... commonest element that is likely to form a very dense molten metal phase, tends to congregate towards planetary interiors. The main zones in the solid Earth are the very dense iron-rich metallic core, the less dense magnesium-silicate-rich mantle and the relatively thin, light crust composed mainly ...
Loving The Universe
... Planetary Nebulae The source of common heavy elements (lighter than iron) … C, O, N, Ca, K, P, etc. ...
... Planetary Nebulae The source of common heavy elements (lighter than iron) … C, O, N, Ca, K, P, etc. ...
Astronomy Final Exam Review
... • A star’s color reveals its surface temperature • Stars are 75% Hydrogen and 25% Helium • Apparent magnitude- brightness as seen by human eyes on earth; Absolute magnitude- intrinisic brightness; how bright it would be at 10pc ...
... • A star’s color reveals its surface temperature • Stars are 75% Hydrogen and 25% Helium • Apparent magnitude- brightness as seen by human eyes on earth; Absolute magnitude- intrinisic brightness; how bright it would be at 10pc ...
2.13 Understanding our Universe
... • If you are lucky you may see an object with a bright tail • This is likely to be a comet, which are made from rock, dry ice and frozen gases such as CO2 and CH4.They come from outside our Solar System • You may also see ‘shooting stars’ which are meteors, these are bits of dust and rock which ente ...
... • If you are lucky you may see an object with a bright tail • This is likely to be a comet, which are made from rock, dry ice and frozen gases such as CO2 and CH4.They come from outside our Solar System • You may also see ‘shooting stars’ which are meteors, these are bits of dust and rock which ente ...
Planetary habitability
Planetary habitability is the measure of a planet's or a natural satellite's potential to develop and sustain life. Life may develop directly on a planet or satellite or be transferred to it from another body, a theoretical process known as panspermia. As the existence of life beyond Earth is unknown, planetary habitability is largely an extrapolation of conditions on Earth and the characteristics of the Sun and Solar System which appear favourable to life's flourishing—in particular those factors that have sustained complex, multicellular organisms and not just simpler, unicellular creatures. Research and theory in this regard is a component of planetary science and the emerging discipline of astrobiology.An absolute requirement for life is an energy source, and the notion of planetary habitability implies that many other geophysical, geochemical, and astrophysical criteria must be met before an astronomical body can support life. In its astrobiology roadmap, NASA has defined the principal habitability criteria as ""extended regions of liquid water, conditions favourable for the assembly of complex organic molecules, and energy sources to sustain metabolism.""In determining the habitability potential of a body, studies focus on its bulk composition, orbital properties, atmosphere, and potential chemical interactions. Stellar characteristics of importance include mass and luminosity, stable variability, and high metallicity. Rocky, terrestrial-type planets and moons with the potential for Earth-like chemistry are a primary focus of astrobiological research, although more speculative habitability theories occasionally examine alternative biochemistries and other types of astronomical bodies.The idea that planets beyond Earth might host life is an ancient one, though historically it was framed by philosophy as much as physical science. The late 20th century saw two breakthroughs in the field. The observation and robotic spacecraft exploration of other planets and moons within the Solar System has provided critical information on defining habitability criteria and allowed for substantial geophysical comparisons between the Earth and other bodies. The discovery of extrasolar planets, beginning in the early 1990s and accelerating thereafter, has provided further information for the study of possible extraterrestrial life. These findings confirm that the Sun is not unique among stars in hosting planets and expands the habitability research horizon beyond the Solar System.The chemistry of life may have begun shortly after the Big Bang, 13.8 billion years ago, during a habitable epoch when the Universe was only 10–17 million years old. According to the panspermia hypothesis, microscopic life—distributed by meteoroids, asteroids and other small Solar System bodies—may exist throughout the universe. Nonetheless, Earth is the only place in the universe known to harbor life. Estimates of habitable zones around other stars, along with the discovery of hundreds of extrasolar planets and new insights into the extreme habitats here on Earth, suggest that there may be many more habitable places in the universe than considered possible until very recently. On 4 November 2013, astronomers reported, based on Kepler space mission data, that there could be as many as 40 billion Earth-sized planets orbiting in the habitable zones of Sun-like stars and red dwarfs within the Milky Way. 11 billion of these estimated planets may be orbiting Sun-like stars. The nearest such planet may be 12 light-years away, according to the scientists.