Contents Mercury, page 2 Venus, page 3 Earth
... 224.7 Earth days. The planet is named after the Roman goddess of love and beauty. After the Moon, it is the brightest natural object in the night sky, reaching an apparent magnitude of −4.6, bright enough to cast shadows. Because Venus is an inferior planet from Earth, it never appears to venture fa ...
... 224.7 Earth days. The planet is named after the Roman goddess of love and beauty. After the Moon, it is the brightest natural object in the night sky, reaching an apparent magnitude of −4.6, bright enough to cast shadows. Because Venus is an inferior planet from Earth, it never appears to venture fa ...
the_universe-part-1
... • the primeval explosion of space, time, matter and energy that most astronomers think gave rise to the universe as we see it today. • occurred about 13.7 billion years ago • thought to have expanded within a second from something the size of a spec of dust to the size of our solar system Misconcept ...
... • the primeval explosion of space, time, matter and energy that most astronomers think gave rise to the universe as we see it today. • occurred about 13.7 billion years ago • thought to have expanded within a second from something the size of a spec of dust to the size of our solar system Misconcept ...
Galaxies and the Universe - Mr. Jones's Science Class
... • the primeval explosion of space, time, matter and energy that most astronomers think gave rise to the universe as we see it today. • occurred about 13.7 billion years ago • thought to have expanded within a second from something the size of a spec of dust to the size of our solar system Misconcept ...
... • the primeval explosion of space, time, matter and energy that most astronomers think gave rise to the universe as we see it today. • occurred about 13.7 billion years ago • thought to have expanded within a second from something the size of a spec of dust to the size of our solar system Misconcept ...
Lecture 21
... shift pattern for its spectral lines? (f) What is the orbital speed of the star in its orbit around the center of mass? (g) What will be the wavelength shift for a visible line (say with wavelength 500 nm)? ...
... shift pattern for its spectral lines? (f) What is the orbital speed of the star in its orbit around the center of mass? (g) What will be the wavelength shift for a visible line (say with wavelength 500 nm)? ...
Constellations Jeopardy
... You would use this model to help your friend understand the distance across the solar system. Model A : yards on a football field. ...
... You would use this model to help your friend understand the distance across the solar system. Model A : yards on a football field. ...
The Solar System
... the solar system. When these particles enter the earth’s atmosphere, they run into air ...
... the solar system. When these particles enter the earth’s atmosphere, they run into air ...
the young astronomers newsletter
... Queen Mary University of London reported the existence of a planet orbiting Prox. Cent. This planet has been designated as Proxima b, and it orbits its star every 11.2 days. It is about 1.3 times as massive as the Earth. Since Prox. Cent. is a red dwarf, it is cooler than our sun and so even at its ...
... Queen Mary University of London reported the existence of a planet orbiting Prox. Cent. This planet has been designated as Proxima b, and it orbits its star every 11.2 days. It is about 1.3 times as massive as the Earth. Since Prox. Cent. is a red dwarf, it is cooler than our sun and so even at its ...
Document
... In that year the first brown dwarf was unambiguously confirmed - Gliese 229B. In that year the first planet in orbit around a star similar to the sun was also unambiguously detected – 51 Peg b. Note that in 1992 planets were found in orbit around the pulsar PSR B1257+12. In that year a whole new bra ...
... In that year the first brown dwarf was unambiguously confirmed - Gliese 229B. In that year the first planet in orbit around a star similar to the sun was also unambiguously detected – 51 Peg b. Note that in 1992 planets were found in orbit around the pulsar PSR B1257+12. In that year a whole new bra ...
Round 1
... This is the source of energy for main sequence stars. (hydrogen fusion) Before reaching the main sequence, a protostar is doing this. (contracting due to gravity) A star becomes a red giant when this happens. (runs out of hydrogen to fuse in its core → leaves the main sequence) $1600 A Type 1a super ...
... This is the source of energy for main sequence stars. (hydrogen fusion) Before reaching the main sequence, a protostar is doing this. (contracting due to gravity) A star becomes a red giant when this happens. (runs out of hydrogen to fuse in its core → leaves the main sequence) $1600 A Type 1a super ...
Our Solar System
... of spiraling into the Sun. The inner planets formed first and were dragged by the spiraling gas, which is why they are closest to the sun. The outer planets have rocky cores, but their outer layers are made up hydrogen and other gases. ...
... of spiraling into the Sun. The inner planets formed first and were dragged by the spiraling gas, which is why they are closest to the sun. The outer planets have rocky cores, but their outer layers are made up hydrogen and other gases. ...
Astronomy 103: First Exam Name
... 36. Potassium-40 has a half-life of 1.3 billion years, if we start with 100 atoms, how much is left after 2.6 billion years? (a) 100 atoms (b) 50 atoms (c) 25 atoms (d) 1/16 of 100 atoms (e) none. 37. Erosion is more effective on Earth then Mars or Venus because of (a) Earth is bigger. (b) Earth is ...
... 36. Potassium-40 has a half-life of 1.3 billion years, if we start with 100 atoms, how much is left after 2.6 billion years? (a) 100 atoms (b) 50 atoms (c) 25 atoms (d) 1/16 of 100 atoms (e) none. 37. Erosion is more effective on Earth then Mars or Venus because of (a) Earth is bigger. (b) Earth is ...
Science 1 (MillinerSci1)
... B. because the larger stars are a further distance away C. because the larger planets are a further distance away D. because the smaller planets are at a further distance away ...
... B. because the larger stars are a further distance away C. because the larger planets are a further distance away D. because the smaller planets are at a further distance away ...
PISGAH Text by Dr. Bob Hayward ASTRONOMICAL Astronomer
... of the bull, it is not actually a member of the Hyades cluster. Instead, it is what astronomers call a foreground star, one that lies in the same direction but which is closer to us. Realize that, while the celestial sphere over our heads at first glance appears to be a two-dimensional surface, it i ...
... of the bull, it is not actually a member of the Hyades cluster. Instead, it is what astronomers call a foreground star, one that lies in the same direction but which is closer to us. Realize that, while the celestial sphere over our heads at first glance appears to be a two-dimensional surface, it i ...
Star Life Cycle Web Quiz
... Fill in the Chart: In order for a star to continue to exist as a ball of radiant energy it must have equilibrium between two strong forces. Fill in the chart below in each of the 3 columns. What is each force? ...
... Fill in the Chart: In order for a star to continue to exist as a ball of radiant energy it must have equilibrium between two strong forces. Fill in the chart below in each of the 3 columns. What is each force? ...
Notes - CH 12
... The color of a star depends on its temperature (just like when you heat metal): Red (3500° K) longest wavelength Yellow (5000° K) White (7000° K) Blue (25000° K) shortest wavelength The brightness of stars depends on two things: The amount of energy in the star The distance the star ...
... The color of a star depends on its temperature (just like when you heat metal): Red (3500° K) longest wavelength Yellow (5000° K) White (7000° K) Blue (25000° K) shortest wavelength The brightness of stars depends on two things: The amount of energy in the star The distance the star ...
Chapter 26
... Graph of the surface temp., or color and absolute brightness of sample stars 2. Used to estimate the sizes of the stars and their distances, and to infer how stars change over time 3. Main sequence- diagonal line on the diagram where 90% of stars are found 4. Supergiants- very bright, very large sta ...
... Graph of the surface temp., or color and absolute brightness of sample stars 2. Used to estimate the sizes of the stars and their distances, and to infer how stars change over time 3. Main sequence- diagonal line on the diagram where 90% of stars are found 4. Supergiants- very bright, very large sta ...
Planet formation - problems and future
... starting evolution of planetary systems. The most of the authors pay attention on interaction between solid bodies (planetesimals) and gas arround existing stars. In many used methods self-gravity is not included in calculations. More interesting for us is the beginning of planet formation from unif ...
... starting evolution of planetary systems. The most of the authors pay attention on interaction between solid bodies (planetesimals) and gas arround existing stars. In many used methods self-gravity is not included in calculations. More interesting for us is the beginning of planet formation from unif ...
Cosmic context: stars and formation of heavy elements
... Places in the Universe where stellar density is ~106 times higher… even here stars very rarely interact with each other. Can consider stars to be the “building blocks” of the Universe. ...
... Places in the Universe where stellar density is ~106 times higher… even here stars very rarely interact with each other. Can consider stars to be the “building blocks” of the Universe. ...
The Stars
... The Stars Stars vary greatly in size, brightness, temperature, and colour. Here are some of the things we have learned about the properties of stars. Measuring distance Just as with the kilometre, the AU is not very useful when we start to study stuff outside of our Solar System. A much larger unit ...
... The Stars Stars vary greatly in size, brightness, temperature, and colour. Here are some of the things we have learned about the properties of stars. Measuring distance Just as with the kilometre, the AU is not very useful when we start to study stuff outside of our Solar System. A much larger unit ...
ASTRonomy 103 - Solar Physics and Space Weather
... lighter elements toward the surface. 43. Which of the following techniques is used by geologists and geophysicists to probe the interior structure of Earth? A direct sampling of interior rock by deep drilling through the ocean floor B extrapolation of surface features (e.g., mountain chains) into th ...
... lighter elements toward the surface. 43. Which of the following techniques is used by geologists and geophysicists to probe the interior structure of Earth? A direct sampling of interior rock by deep drilling through the ocean floor B extrapolation of surface features (e.g., mountain chains) into th ...
presentation format
... The time it takes for a planet to go around the Sun is related to the size of its orbit; more distant planets take longer to go around. (Period in years)^2 = (semimajoraxis in a.u.)^3 ...
... The time it takes for a planet to go around the Sun is related to the size of its orbit; more distant planets take longer to go around. (Period in years)^2 = (semimajoraxis in a.u.)^3 ...
Lecture L24 ASTB21
... scientists reached the conclusion that stellar ultraviolet would probably prove deadly to any organisms in the inner reaches of a planetary system and, principally for this reason, panspermia quietly faded from view-only to be revived some four decades later. In the early 1960s, Carl Sagan analyzed ...
... scientists reached the conclusion that stellar ultraviolet would probably prove deadly to any organisms in the inner reaches of a planetary system and, principally for this reason, panspermia quietly faded from view-only to be revived some four decades later. In the early 1960s, Carl Sagan analyzed ...
Exam Name___________________________________
... 26) What will happen to the Sun in about 5 billion years? Describe the appearance of the Sun and the processes inside the Sun to cause any changes in appearance. 27) What is the helium flash and what causes it? 28) What are neutrinos? Describe the properties of neutrinos: mass, size, electrical char ...
... 26) What will happen to the Sun in about 5 billion years? Describe the appearance of the Sun and the processes inside the Sun to cause any changes in appearance. 27) What is the helium flash and what causes it? 28) What are neutrinos? Describe the properties of neutrinos: mass, size, electrical char ...
Star Of Wonder
... bomb) to release much heat and light. The object recorded in 5 BC by the Chinese could have been a nova rather than a comet, and this could in fact have been the Star of Bethlehem. Because it's so stupendous, my favorite hypothesis has always been a supernova, the dramatic brightening of a star cau ...
... bomb) to release much heat and light. The object recorded in 5 BC by the Chinese could have been a nova rather than a comet, and this could in fact have been the Star of Bethlehem. Because it's so stupendous, my favorite hypothesis has always been a supernova, the dramatic brightening of a star cau ...
![Global Warming_Notes_for_Test_Review[1]](http://s1.studyres.com/store/data/009490554_1-1d4a9735243ab8423aa4808909f160ae-300x300.png)
Global Warming_Notes_for_Test_Review[1]
... mass. 4. Fusion is the process that powers the Sun and other Stars. True 5. A black hole is the beginning stage of every massive star. False. A black hole is the ending stage of a massive star. 6. A nebula is a vast cloud of gas or dust. True. 7. When particles from the sun collide with air molecule ...
... mass. 4. Fusion is the process that powers the Sun and other Stars. True 5. A black hole is the beginning stage of every massive star. False. A black hole is the ending stage of a massive star. 6. A nebula is a vast cloud of gas or dust. True. 7. When particles from the sun collide with air molecule ...
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.