Life Cycle of Star Pictures
... and dust that begins to shrink under the pull of its own gravity. This stellar nebula is the beginning of all star’s lives. ...
... and dust that begins to shrink under the pull of its own gravity. This stellar nebula is the beginning of all star’s lives. ...
Make one copy for each student on plain paper. Life Cycle of Star
... and dust that begins to shrink under the pull of its own gravity. This stellar nebula is the beginning of all star’s lives. ...
... and dust that begins to shrink under the pull of its own gravity. This stellar nebula is the beginning of all star’s lives. ...
High School Science Essential Curriculum - Astronomy
... The student will demonstrate the ability to use Earth’s characteristics as a model planet to compare and identify distinguishing features about other members of the solar system. ...
... The student will demonstrate the ability to use Earth’s characteristics as a model planet to compare and identify distinguishing features about other members of the solar system. ...
Slide 1
... (solar radius) And Pressure from Pc(at center) to 0 at the surface we get an estimate for the central pressure in The Sun at 1 x 1016 which is 20 times too small with more sophisticated models Check out this problem ..be able to do it.. ...
... (solar radius) And Pressure from Pc(at center) to 0 at the surface we get an estimate for the central pressure in The Sun at 1 x 1016 which is 20 times too small with more sophisticated models Check out this problem ..be able to do it.. ...
A Walk through the Universe
... Slide 1: Space is Big [I normally set the presentation up so that this slide is showing while the children come in and settle down. The teachers generally recognise the quote – maybe some of the kids will too!] Today I’m going to talk about space. What do you know about space? [Cue forest of little ...
... Slide 1: Space is Big [I normally set the presentation up so that this slide is showing while the children come in and settle down. The teachers generally recognise the quote – maybe some of the kids will too!] Today I’m going to talk about space. What do you know about space? [Cue forest of little ...
Possible patterns in the distribution of planetary formation regions
... as in our solar system (in terms of residuals to an exponential fit) are not small (83%). The inclusion of Eris made a change with respect to the case in which Eris is not included. In that case the likelihood of a random configuration giving smaller residuals than the actual solar system is 87%. Ly ...
... as in our solar system (in terms of residuals to an exponential fit) are not small (83%). The inclusion of Eris made a change with respect to the case in which Eris is not included. In that case the likelihood of a random configuration giving smaller residuals than the actual solar system is 87%. Ly ...
PLANETS
... inner edge begins around 25 AU away, farther than the average orbital distance of Uranus in the Solar System. Its outer edge appears to extend as far out as 550 AUs away from the star. ...
... inner edge begins around 25 AU away, farther than the average orbital distance of Uranus in the Solar System. Its outer edge appears to extend as far out as 550 AUs away from the star. ...
The Motions of the Planets
... • Some comets travel in parabolas and hyperbolas, which are foreign to Kepler's laws, but entirely predictable by Newton's laws ...
... • Some comets travel in parabolas and hyperbolas, which are foreign to Kepler's laws, but entirely predictable by Newton's laws ...
Educator Guide: Starlab (Grades 6-8)
... Galaxy – a large system of stars held together by gravity Hertzsprung-Russell Diagram – a graph that shows the relationship between a star’s absolute brightness (called luminosity) and its temperature. The HR diagram is a great tool for classifying stars. Lightyear – the distance light travels i ...
... Galaxy – a large system of stars held together by gravity Hertzsprung-Russell Diagram – a graph that shows the relationship between a star’s absolute brightness (called luminosity) and its temperature. The HR diagram is a great tool for classifying stars. Lightyear – the distance light travels i ...
Lesson 7
... There is much information to learn about the planets. It takes Earth one year, 365 days, to complete one orbit around the sun. The planet Mercury takes only 88 days to orbit the sun, since it is closest to the sun; but Pluto takes 248 years. Pluto and Neptune are the coldest planets with temperature ...
... There is much information to learn about the planets. It takes Earth one year, 365 days, to complete one orbit around the sun. The planet Mercury takes only 88 days to orbit the sun, since it is closest to the sun; but Pluto takes 248 years. Pluto and Neptune are the coldest planets with temperature ...
maymester2
... measurements of the positions of celestial objects. • Johannes Kepler inherited Brahe’s data and determined three empirical laws governing the motion of orbiting celestial objects. – 1st Law: Each planet moves around the Sun in an orbit that is an ellipse, with the Sun at one focus of the ellipse. – ...
... measurements of the positions of celestial objects. • Johannes Kepler inherited Brahe’s data and determined three empirical laws governing the motion of orbiting celestial objects. – 1st Law: Each planet moves around the Sun in an orbit that is an ellipse, with the Sun at one focus of the ellipse. – ...
chapter 17 measuring the stars
... Dwarf: Any star with radius comparable to, or smaller than that of the Sun (including the Sun itself) ~The color of any 24, 000 K object glows white o White Dwarf: A dwarf star with sufficiently high surface temperature that it glows white ...
... Dwarf: Any star with radius comparable to, or smaller than that of the Sun (including the Sun itself) ~The color of any 24, 000 K object glows white o White Dwarf: A dwarf star with sufficiently high surface temperature that it glows white ...
June 2013 Kepler Space Telescope Update
... and passive ellipticals found at redshifts between 2 and 1.5, corresponding to epochs in cosmic history when the Universe was three to almost five billion years old, or only about one third of its present age. Somehow, on a short cosmological timescale, these galaxies managed to exhaust their gas re ...
... and passive ellipticals found at redshifts between 2 and 1.5, corresponding to epochs in cosmic history when the Universe was three to almost five billion years old, or only about one third of its present age. Somehow, on a short cosmological timescale, these galaxies managed to exhaust their gas re ...
A brief history of extra-solar planets - X
... Searching for Earths by transit method Launched last year by NASA Aims to find an Earth around a Sun-like star in a one year orbit Need three transits to confirm So mission lasts at least three years… ...
... Searching for Earths by transit method Launched last year by NASA Aims to find an Earth around a Sun-like star in a one year orbit Need three transits to confirm So mission lasts at least three years… ...
here
... • The Solar System refers to the Sun and the surrounding planets, asteroids, comets, etc. • The scale of things: – It takes light about 11 hours to travel across the Solar system. This is 0.001265 years. – It takes light about 4.3 years to travel from the Sun to the nearest star. – It takes light ab ...
... • The Solar System refers to the Sun and the surrounding planets, asteroids, comets, etc. • The scale of things: – It takes light about 11 hours to travel across the Solar system. This is 0.001265 years. – It takes light about 4.3 years to travel from the Sun to the nearest star. – It takes light ab ...
Lec21_2D
... Jupiter formed in a mini-nebula, just like the solar nebula. During formation, Jupiter shined by gravitational contraction, just like a star. Jupiter’s luminosity prevented light elements from condensing on its inner moons, just like the Sun. ...
... Jupiter formed in a mini-nebula, just like the solar nebula. During formation, Jupiter shined by gravitational contraction, just like a star. Jupiter’s luminosity prevented light elements from condensing on its inner moons, just like the Sun. ...
Astronomy Fall 2013 Final Exam History of Astronomy Know: speed
... light on earth you see a flash of light like a light house. 7. What produces a Type II supernova? Supermassive (greater than 12 solar masses) cloud starts fusing elements until it makes an iron core- then it recoils and explodes 8.Almost half of all known millisecond pulsars are found in what type o ...
... light on earth you see a flash of light like a light house. 7. What produces a Type II supernova? Supermassive (greater than 12 solar masses) cloud starts fusing elements until it makes an iron core- then it recoils and explodes 8.Almost half of all known millisecond pulsars are found in what type o ...
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... What is the most unique characteristic of the Earth? • The presence and diversity of life ...
... What is the most unique characteristic of the Earth? • The presence and diversity of life ...
Witnesses to Local Cosmic History - Max-Planck
... shed the 100-kilogram landing probe Philae, which will softly land on the comet’s nucleus, which measures only a few kilometers across. This will be the first time it will be possible to thoroughly investigate a comet in situ. There is still some time to go until then, but for Hermann Böhnhardt and ...
... shed the 100-kilogram landing probe Philae, which will softly land on the comet’s nucleus, which measures only a few kilometers across. This will be the first time it will be possible to thoroughly investigate a comet in situ. There is still some time to go until then, but for Hermann Böhnhardt and ...
PHYSICS 1500 - ASTRONOMY TOTAL: 100 marks Section A Please
... (b) Halley is loosely packed ices with a small amount of rocky material. (c) Halley formed in the inner solar system and was ejected by Jupiter to the Kuiper belt. (d) Halley is really an S-type asteroid. (e) Halley was once a moon of Neptune and was ripped away by a large impact. ...
... (b) Halley is loosely packed ices with a small amount of rocky material. (c) Halley formed in the inner solar system and was ejected by Jupiter to the Kuiper belt. (d) Halley is really an S-type asteroid. (e) Halley was once a moon of Neptune and was ripped away by a large impact. ...
Habitable planets around the star Gliese 581?
... entire surface, but no other greenhouse volatiles. As a first step, we assume that its host star is a Sun-like star and that the planet has the same gravity as the Earth. For a given orbital distance, a fraction of the water reservoir is in the form of vapor. The surface temperature T s imposes the ...
... entire surface, but no other greenhouse volatiles. As a first step, we assume that its host star is a Sun-like star and that the planet has the same gravity as the Earth. For a given orbital distance, a fraction of the water reservoir is in the form of vapor. The surface temperature T s imposes the ...
What are constellations? - Red Hook Central Schools
... a white bull. He tricked Europa into climbing on his back. He then swam out to sea and carried her to Crete. In Egypt, the constellation was a reminder of Apis, the Bull of Memphis. He served as a servant to Osiris, god of the Sun. Just as famous as Taurus is the group of stars within it. The Pleiad ...
... a white bull. He tricked Europa into climbing on his back. He then swam out to sea and carried her to Crete. In Egypt, the constellation was a reminder of Apis, the Bull of Memphis. He served as a servant to Osiris, god of the Sun. Just as famous as Taurus is the group of stars within it. The Pleiad ...
PLANETS
... H and He: The majority of its mass is in the form of the gaseous hydrogen and helium, with traces of water, methane, ammonia, and other hydrogen compounds. B. Terrestrial planets • Prototypes: Earth, Venus, Mars • Primarily composed of silicate rocks (carbon/diamond planets?) • In the Solar System ( ...
... H and He: The majority of its mass is in the form of the gaseous hydrogen and helium, with traces of water, methane, ammonia, and other hydrogen compounds. B. Terrestrial planets • Prototypes: Earth, Venus, Mars • Primarily composed of silicate rocks (carbon/diamond planets?) • In the Solar System ( ...
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.