Broward County Benchmark Correlation
... • Planet Celestial body that (a) is in orbit around the Sun, (b) has sufficient mass for its selfgravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape, and (c) has cleared the neighborhood around its orbit. Mercury, Venus, Earth, Mars, Jupiter, Satur ...
... • Planet Celestial body that (a) is in orbit around the Sun, (b) has sufficient mass for its selfgravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape, and (c) has cleared the neighborhood around its orbit. Mercury, Venus, Earth, Mars, Jupiter, Satur ...
EarthScience-Astronomy-TheSolarSystem
... layer of water, which responds to the gravitational attraction of the moon and the Sun with a daily cycle of high and low tides. c. The Moon’s gravity pulls on the Earth, and pulls the water towards it. The water moves up into a slight bulge on the side of the Earth that faces the Moon. d. At the sa ...
... layer of water, which responds to the gravitational attraction of the moon and the Sun with a daily cycle of high and low tides. c. The Moon’s gravity pulls on the Earth, and pulls the water towards it. The water moves up into a slight bulge on the side of the Earth that faces the Moon. d. At the sa ...
Event Booklet - Exoplanets I Conference
... LITE effect, reflecting the reflex motion of KOI-760, induced by a massive brown dwarf or a small M star at an orbit of 2 AUs. IF confirmed, this is probably the first time such a companion to a star with hot Jupiter is detected at a distance of 2 AU. Such a system might question the appropriateness ...
... LITE effect, reflecting the reflex motion of KOI-760, induced by a massive brown dwarf or a small M star at an orbit of 2 AUs. IF confirmed, this is probably the first time such a companion to a star with hot Jupiter is detected at a distance of 2 AU. Such a system might question the appropriateness ...
2. Chapter 11
... To be considered a planet, a body must orbit one or more stars, be large enough that its own gravity holds it in a spherical shape, and be the only body occupying the orbital path. Large distances keep our solar neighbourhood’s family of eight planets well separated from each other (Figure 11.9). In ...
... To be considered a planet, a body must orbit one or more stars, be large enough that its own gravity holds it in a spherical shape, and be the only body occupying the orbital path. Large distances keep our solar neighbourhood’s family of eight planets well separated from each other (Figure 11.9). In ...
Enhanced lithium depletion in Sun-like stars with orbiting planets.
... stars from a CORALIE catalogue11. These stars have been monitored with high precision spectroscopic observations for years in order to detect planetary systems. Of these 451 stars, 70 are reported to host planets and the rest, which we will designate as a comparison sample, (we often call them “sing ...
... stars from a CORALIE catalogue11. These stars have been monitored with high precision spectroscopic observations for years in order to detect planetary systems. Of these 451 stars, 70 are reported to host planets and the rest, which we will designate as a comparison sample, (we often call them “sing ...
Measuring Distances Beyond the Solar System
... The Sun, our nearest star, appears as a large, bright disc in the sky because it is relatively close to Earth—approximately 150 million (1.5 × 108) km away. The next nearest star to the Sun is Proxima Centauri, which appears as a twinkling dot of light. Proxima Centauri is approximately 40 trillion ...
... The Sun, our nearest star, appears as a large, bright disc in the sky because it is relatively close to Earth—approximately 150 million (1.5 × 108) km away. The next nearest star to the Sun is Proxima Centauri, which appears as a twinkling dot of light. Proxima Centauri is approximately 40 trillion ...
Astronomy - Bemidji State University
... have seen that pioneer's expression upon first realizing this!) Place those lenses in a tube and voila, you have a spyglass. Within months, Galileo had not only learned of the new device but was well on his way to improving its design. In his workshop in Padua, Italy, he discovered that plano-convex ...
... have seen that pioneer's expression upon first realizing this!) Place those lenses in a tube and voila, you have a spyglass. Within months, Galileo had not only learned of the new device but was well on his way to improving its design. In his workshop in Padua, Italy, he discovered that plano-convex ...
MySci Unit 23
... A. The Earth, Sun, and Moon are part of a larger system that includes other planets and smaller celestial bodies a. Observe and identify the Earth is one of several planets within a solar system that orbits the Sun b. Observe and identify the Moon orbits the Earth in about a month Identify that plan ...
... A. The Earth, Sun, and Moon are part of a larger system that includes other planets and smaller celestial bodies a. Observe and identify the Earth is one of several planets within a solar system that orbits the Sun b. Observe and identify the Moon orbits the Earth in about a month Identify that plan ...
Practice Exam for 3 rd Astronomy Exam
... OB Association In the Milky Way Galaxy there are very many Giant Molecular Clouds (GMC). A typical GMC contains most hydrogen and helium gas and microscopic solid particles of ice and rocky material known collectively as “dust”. The typical GMC may be 300 ly in diameter and encompass 300,000 solar m ...
... OB Association In the Milky Way Galaxy there are very many Giant Molecular Clouds (GMC). A typical GMC contains most hydrogen and helium gas and microscopic solid particles of ice and rocky material known collectively as “dust”. The typical GMC may be 300 ly in diameter and encompass 300,000 solar m ...
June, 2001 AAS poster - David P. Bennett
... The VISTA telescope has recently been funded by the UK for construction in Paranal, the site of the VLT. It is a 4m wide FOV telescope which can image 2.25 square degrees. Based upon estimates of planet detection sensitivity in a 1997 ESO report by Sackett, a single-site microlensing planet search p ...
... The VISTA telescope has recently been funded by the UK for construction in Paranal, the site of the VLT. It is a 4m wide FOV telescope which can image 2.25 square degrees. Based upon estimates of planet detection sensitivity in a 1997 ESO report by Sackett, a single-site microlensing planet search p ...
the particle was on Earth`s surface
... (except at two poles) must rotate in a circle about the Earth’s rotation axis and thus have a centripital acceleration ( requiring a centripital net force ) directed toward the center of the ciecle. ...
... (except at two poles) must rotate in a circle about the Earth’s rotation axis and thus have a centripital acceleration ( requiring a centripital net force ) directed toward the center of the ciecle. ...
Exoplanets - Polarisation.eu
... • These measurements have not yet been confirmed by other polarimeters. • To fit the data, this exoplanet should have a very high degree of polarization. • The model calculations include no multiple scattering of light. ...
... • These measurements have not yet been confirmed by other polarimeters. • To fit the data, this exoplanet should have a very high degree of polarization. • The model calculations include no multiple scattering of light. ...
Prospects for Characterizing the Atmosphere of Proxima Centauri b
... Anglada-Escudé et al. (2016) recently announced the exciting discovery of a potentially habitable planet orbiting our nearest neighboring star, Proxima Centauri. The planet has a minimum mass of 1.3 M⊕ and an insolation equal to two thirds that of Earth, suggesting that it could have a rocky surfac ...
... Anglada-Escudé et al. (2016) recently announced the exciting discovery of a potentially habitable planet orbiting our nearest neighboring star, Proxima Centauri. The planet has a minimum mass of 1.3 M⊕ and an insolation equal to two thirds that of Earth, suggesting that it could have a rocky surfac ...
Water in the Universe
... layers explode, dissipating a mist of stellar material, and injecting heavy elements into other interstellar clouds which have a mass exceeding by millions of times that of the Sun, and which contain a significant proportion of water molecules. Alternatively, in the case of those medium-size stars s ...
... layers explode, dissipating a mist of stellar material, and injecting heavy elements into other interstellar clouds which have a mass exceeding by millions of times that of the Sun, and which contain a significant proportion of water molecules. Alternatively, in the case of those medium-size stars s ...
script (powerpoint)
... If there is no bright (mag ~ 14-15) nearby star then you must use an artificial star or „laser guide star“. All laser guide AO systems use a sodium laser tuned to Na 5890 Å pointed to the 11.5 km thick layer of enhanced sodium at an altitude of ...
... If there is no bright (mag ~ 14-15) nearby star then you must use an artificial star or „laser guide star“. All laser guide AO systems use a sodium laser tuned to Na 5890 Å pointed to the 11.5 km thick layer of enhanced sodium at an altitude of ...
Are You Smarter... Review Game
... classify the planets as either inner or outer! The Inner planets consist of Mercury, Venus, Earth and Mars. The Outer planets consist Jupiter, Saturn, Uranus, and Neptune. We also call the Inner planets terrestrial planets, and the Outer planets gas giants. ...
... classify the planets as either inner or outer! The Inner planets consist of Mercury, Venus, Earth and Mars. The Outer planets consist Jupiter, Saturn, Uranus, and Neptune. We also call the Inner planets terrestrial planets, and the Outer planets gas giants. ...
Eris is Pluto`s Twin This diagram shows the path of a faint star during
... presence of large mountains. Such features are, however, unlikely on such a large icy body. Eris was identified as a large object in the outer Solar System in 2005. Its discovery was one of the factors that led to the creation of a new class of objects called dwarf planets and the reclassification o ...
... presence of large mountains. Such features are, however, unlikely on such a large icy body. Eris was identified as a large object in the outer Solar System in 2005. Its discovery was one of the factors that led to the creation of a new class of objects called dwarf planets and the reclassification o ...
chapter01lecturecdl
... distant hill ... • … but if you move through the house and take a photo out of ...
... distant hill ... • … but if you move through the house and take a photo out of ...
planetary temperatures, albedos, and the greenhouse effect
... We can measure the albedo of a planet or moon by comparing its brightness to how much sunlight it receives. We know how much sunlight it receives because we know its distance from the Sun (remember the 1/ R2 rule!); and we can measure how much light is coming from the object with a photometer on a t ...
... We can measure the albedo of a planet or moon by comparing its brightness to how much sunlight it receives. We know how much sunlight it receives because we know its distance from the Sun (remember the 1/ R2 rule!); and we can measure how much light is coming from the object with a photometer on a t ...
Solar System
... 2-3 ES1A The shape of the moon goes through one entire set of phases during the course of its 28-day cycle 2-3 ES1B Patterns of stars (constellations) always have the same shape 4-5SYSA Systems contain subsystems and are themselves parts of larger systems 4-5 SYSB A System can do things that none of ...
... 2-3 ES1A The shape of the moon goes through one entire set of phases during the course of its 28-day cycle 2-3 ES1B Patterns of stars (constellations) always have the same shape 4-5SYSA Systems contain subsystems and are themselves parts of larger systems 4-5 SYSB A System can do things that none of ...
Stars part 2
... • The collapse may be triggered by the passing of, the eruption of, or the explosion of a near-by star. • Energy production is described by the “Helmholtz Contraction”, where the heat build up by the gravitational collapse. ...
... • The collapse may be triggered by the passing of, the eruption of, or the explosion of a near-by star. • Energy production is described by the “Helmholtz Contraction”, where the heat build up by the gravitational collapse. ...
Science and the Universe
... • The Sun is a star – Its diameter is 1.5 million km • A planet is a body of significant size that orbits a star and does not produce its own light • A star is large body which (at some point during its life) produces light by nuclear reactions ...
... • The Sun is a star – Its diameter is 1.5 million km • A planet is a body of significant size that orbits a star and does not produce its own light • A star is large body which (at some point during its life) produces light by nuclear reactions ...
Astrophysics - Cathkin High School
... thought that the Sun revolved around the Earth because that is what it seems to do! Similarly most people were sure that the Earth was flat until there was definite proof from sailors who had ventured round the world and not fallen off! It may prove useful therefore to give a brief historical introd ...
... thought that the Sun revolved around the Earth because that is what it seems to do! Similarly most people were sure that the Earth was flat until there was definite proof from sailors who had ventured round the world and not fallen off! It may prove useful therefore to give a brief historical introd ...
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.