Astronomy DR Packet
... 11. In the Northern hemisphere, summer begins on _______________. This is the longest __________ and the shortest ___________ of the year. 12. The hemisphere that is tilted away from the Sun is __________ because it receives less __________ rays. 13. Draw a diagram showing the orientation of the Ea ...
... 11. In the Northern hemisphere, summer begins on _______________. This is the longest __________ and the shortest ___________ of the year. 12. The hemisphere that is tilted away from the Sun is __________ because it receives less __________ rays. 13. Draw a diagram showing the orientation of the Ea ...
NCEA Level 2 Earth and Space Science (91192) 2015
... begin to collide and form bigger masses. The bigger masses collect more particles due to increasing gravitational field strength. There are two things that affect the formation of planets – temperature and the presence or absence of solar winds. The inner planets have formed in a higher temperature ...
... begin to collide and form bigger masses. The bigger masses collect more particles due to increasing gravitational field strength. There are two things that affect the formation of planets – temperature and the presence or absence of solar winds. The inner planets have formed in a higher temperature ...
NCEA Level 2 Earth and Space Science (91192) 2015
... begin to collide and form bigger masses. The bigger masses collect more particles due to increasing gravitational field strength. There are two things that affect the formation of planets – temperature and the presence or absence of solar winds. The inner planets have formed in a higher temperature ...
... begin to collide and form bigger masses. The bigger masses collect more particles due to increasing gravitational field strength. There are two things that affect the formation of planets – temperature and the presence or absence of solar winds. The inner planets have formed in a higher temperature ...
Are we alone? - School of Physics
... the sky several metres away or more, it is impossible to tell how far away it is, or how big.” Is it: •A fire fly—5 metres away? •A balloon —500 metres away? •An aircraft —5 km away? •Venus —50 million km away? ...
... the sky several metres away or more, it is impossible to tell how far away it is, or how big.” Is it: •A fire fly—5 metres away? •A balloon —500 metres away? •An aircraft —5 km away? •Venus —50 million km away? ...
Specific Word Instruction Possible Sentences
... such as the Big Dipper. • A galaxy is a group of billions of stars belonging to one star system. Earth is in the Milky Way galaxy. • An orbit is a circular path that a heavenly body or satellite makes around another body in space. • The universe is everything that exists, including all space and mat ...
... such as the Big Dipper. • A galaxy is a group of billions of stars belonging to one star system. Earth is in the Milky Way galaxy. • An orbit is a circular path that a heavenly body or satellite makes around another body in space. • The universe is everything that exists, including all space and mat ...
lecture2
... in Astronomy, and there are a large range of methods used, with those used to get more distant objects based on those for nearer objects. Over the semester, we will discuss a set of methods used at ever larger distances (see next to last page of textbook). Typically the methods used for further obje ...
... in Astronomy, and there are a large range of methods used, with those used to get more distant objects based on those for nearer objects. Over the semester, we will discuss a set of methods used at ever larger distances (see next to last page of textbook). Typically the methods used for further obje ...
2 nd Semester Final Review
... E.8.B.6 Students know the Sun is a medium-sized star located in the Milky Way Galaxy, part of which can be seen as a glowing band of light spanning the clear night sky. W/S E.8.B.7 Students know regular and predictable motions of Earth around the Sun and the Moon around the Earth explain such phenom ...
... E.8.B.6 Students know the Sun is a medium-sized star located in the Milky Way Galaxy, part of which can be seen as a glowing band of light spanning the clear night sky. W/S E.8.B.7 Students know regular and predictable motions of Earth around the Sun and the Moon around the Earth explain such phenom ...
The Far Future Sun and the Ultimate Fates of
... In their models Earth escapes its fiery fate mainly because 0.275 solar masses are removed on the first ascent of the red giant branch. ...
... In their models Earth escapes its fiery fate mainly because 0.275 solar masses are removed on the first ascent of the red giant branch. ...
sample text - Highereducationresources
... Earth on Jupiter’s surface is probably a 13,000-mile-wide storm that has been raging for thousands of years. The spot’s dark red colour suggests that it may tower thousands of miles above the lighter-coloured clouds. Moons (Heading level 3) Jupiter has 16 moons, the largest of which are Europa, Gany ...
... Earth on Jupiter’s surface is probably a 13,000-mile-wide storm that has been raging for thousands of years. The spot’s dark red colour suggests that it may tower thousands of miles above the lighter-coloured clouds. Moons (Heading level 3) Jupiter has 16 moons, the largest of which are Europa, Gany ...
Name - MIT
... a main-belt asteroid has an apparent magnitude of +6, a Kuiper Belt Object has an apparent magnitude of +17, a Trojan asteroid has an apparent magnitude of +14, and Pluto has an apparent magnitude of +15. Which object is faintest in the sky? A) B) C) D) E) ...
... a main-belt asteroid has an apparent magnitude of +6, a Kuiper Belt Object has an apparent magnitude of +17, a Trojan asteroid has an apparent magnitude of +14, and Pluto has an apparent magnitude of +15. Which object is faintest in the sky? A) B) C) D) E) ...
Chapter 20
... Still, many astronomers think that since it is not difficult to form complex molecules, primitive life may well have arisen not only on the Earth but also in other locations. The appearance of very simple organisms in Earth rocks that are 3.5 billion years old, and indirect evidence for life as far ...
... Still, many astronomers think that since it is not difficult to form complex molecules, primitive life may well have arisen not only on the Earth but also in other locations. The appearance of very simple organisms in Earth rocks that are 3.5 billion years old, and indirect evidence for life as far ...
Sample pages 1 PDF
... The most obvious historical objects of any astronomical significance must be the magnificent stone henges built throughout Europe and Asia, such as Stonehenge and Brodgar, where stone pillars are aligned, so we believe, to indicate the rising and setting of the summer and winter solstice Sun, etc. B ...
... The most obvious historical objects of any astronomical significance must be the magnificent stone henges built throughout Europe and Asia, such as Stonehenge and Brodgar, where stone pillars are aligned, so we believe, to indicate the rising and setting of the summer and winter solstice Sun, etc. B ...
Stellar Evolution
... (1025) times the energy of a Hydrogen bomb! Luminosity of a Supernova: 10,000,000,000 (1010) times the power output of the sun! Comparable to the power of an ...
... (1025) times the energy of a Hydrogen bomb! Luminosity of a Supernova: 10,000,000,000 (1010) times the power output of the sun! Comparable to the power of an ...
conjunction and opposition
... Greatest elongation is the best time to view these inner planets as they will be seen at their furthest angular distance from the Sun, well away from a line of sight with the Sun. ...
... Greatest elongation is the best time to view these inner planets as they will be seen at their furthest angular distance from the Sun, well away from a line of sight with the Sun. ...
LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034
... 12. Define circumpolar star and find the condition for any star to be circumpolar. 13. Define sidereal time ‘t’ and prove that sidereal time is equal to the R.A. ± Hour angle of a star. 14. Find roughly the distance of a star whose parallax is 0.5” given that parallax of the sun is 9” and the earth’ ...
... 12. Define circumpolar star and find the condition for any star to be circumpolar. 13. Define sidereal time ‘t’ and prove that sidereal time is equal to the R.A. ± Hour angle of a star. 14. Find roughly the distance of a star whose parallax is 0.5” given that parallax of the sun is 9” and the earth’ ...
Stargazer - Everett Astronomical Society
... around distant stars. Unfortunately, the limitations of current technology mean that only giant planets (like Jupiter) have so far been detected, and smaller, rocky planets similar to Earth remain out of sight. How many of the known exoplanetary systems might contain habitable Earth-type planets? Pe ...
... around distant stars. Unfortunately, the limitations of current technology mean that only giant planets (like Jupiter) have so far been detected, and smaller, rocky planets similar to Earth remain out of sight. How many of the known exoplanetary systems might contain habitable Earth-type planets? Pe ...
Chapter 8
... • The total mechanical energy E = K + U determines the type of orbit an object follows: • Special cases include circular orbits and the straight-line paths of falling objects ...
... • The total mechanical energy E = K + U determines the type of orbit an object follows: • Special cases include circular orbits and the straight-line paths of falling objects ...
Stars and the Main Sequence
... The star will settle into a hydrostatic and thermal equilibrium, where cooling is balanced by nuclear energy generation and there is no time dependence of any state variables. ...
... The star will settle into a hydrostatic and thermal equilibrium, where cooling is balanced by nuclear energy generation and there is no time dependence of any state variables. ...
4-6 Script
... The student demonstrates an understanding of cycles influenced by energy from the sun and by Earth’s position and motion in our solar system by: SD3.1 [4]: recognizing changes to length of daylight over time and its relationship to seasons. The student demonstrates an understanding of the theories r ...
... The student demonstrates an understanding of cycles influenced by energy from the sun and by Earth’s position and motion in our solar system by: SD3.1 [4]: recognizing changes to length of daylight over time and its relationship to seasons. The student demonstrates an understanding of the theories r ...
Stars and the Sun
... Objective 2: Explain how composition and surface temperatures of stars are measured • Otherwise known as how do we know all this? • Cameras, telescopes, filters to detect… • visible light, radio waves, electromagnetic radiation… • Spectroscopy • Can determine temperature, age, rotation, magnetic fi ...
... Objective 2: Explain how composition and surface temperatures of stars are measured • Otherwise known as how do we know all this? • Cameras, telescopes, filters to detect… • visible light, radio waves, electromagnetic radiation… • Spectroscopy • Can determine temperature, age, rotation, magnetic fi ...
Life Cycle of a Star
... • A contracting cloud of gas and dust • Pressure and heat start nuclear fusion ...
... • A contracting cloud of gas and dust • Pressure and heat start nuclear fusion ...
ppt
... disk into internal and external remnants. The mass of the interior and exterior disk depends on the age of the disk. The concept that giant planet migration would eliminate all the mass in its swept zone is not supported by the results. The inner part clears completly if the giant moves inside 0.05 ...
... disk into internal and external remnants. The mass of the interior and exterior disk depends on the age of the disk. The concept that giant planet migration would eliminate all the mass in its swept zone is not supported by the results. The inner part clears completly if the giant moves inside 0.05 ...
Solar evolution and the distant future of Earth
... giants with solar metallicity will be cooler and may lose even more mass than the metal-poor stars in globular clusters did. Our models also consider dust-driven mass loss which, however, does not become important in the case of the Sun. Specifically for the peak of the Sun’s expansion (figure 2), t ...
... giants with solar metallicity will be cooler and may lose even more mass than the metal-poor stars in globular clusters did. Our models also consider dust-driven mass loss which, however, does not become important in the case of the Sun. Specifically for the peak of the Sun’s expansion (figure 2), t ...
Lesson 4: Object`s Motion in the Sky
... Inertia would cause a planet to keep moving in a straight path, but an outside force must act on it in order for it to stay in orbit. •This outside force is gravity. •The gravitational pull of the sun pulls the planet inward while the planet’s speed and directions pushes it outward. •When these are ...
... Inertia would cause a planet to keep moving in a straight path, but an outside force must act on it in order for it to stay in orbit. •This outside force is gravity. •The gravitational pull of the sun pulls the planet inward while the planet’s speed and directions pushes it outward. •When these are ...
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.