Solutions 5
... In high-mass stars everything takes place more rapidly. Greater mass means greater gravity and the protostar process is accelerated. Greater mass leads to greater core pressures and temperatures, thus, a hotter more luminous star. The greater mass star consumes the available hydrogen at a much highe ...
... In high-mass stars everything takes place more rapidly. Greater mass means greater gravity and the protostar process is accelerated. Greater mass leads to greater core pressures and temperatures, thus, a hotter more luminous star. The greater mass star consumes the available hydrogen at a much highe ...
MBuzaTalk2
... Star begins to fuse iron, which eats up energy. Causes the star to contract, gravity taking over Varying densities causes pressure build up, and then the ‘bounce’ (degenerate core), the star violently ejects large amounts of the star into space. ...
... Star begins to fuse iron, which eats up energy. Causes the star to contract, gravity taking over Varying densities causes pressure build up, and then the ‘bounce’ (degenerate core), the star violently ejects large amounts of the star into space. ...
Geologic Time and Origins of the Earth
... • Accretion acts over an extended area (the disk) and for a extended period of time • Solid grains condense out of the nebula’s gas – This is a chemistry process ...
... • Accretion acts over an extended area (the disk) and for a extended period of time • Solid grains condense out of the nebula’s gas – This is a chemistry process ...
ES High mass star life cycle plus black holes
... What is the life cycle of a low mass star (5 stages)? What is the life cycle of a high mass star? What is the heaviest element forms in the center of a high mass star? Why is supernova crucial to our existence? Where is calcium formed in the life a high mass star? What is a supernova? What are the 2 ...
... What is the life cycle of a low mass star (5 stages)? What is the life cycle of a high mass star? What is the heaviest element forms in the center of a high mass star? Why is supernova crucial to our existence? Where is calcium formed in the life a high mass star? What is a supernova? What are the 2 ...
20.1 Notes
... own gravity and rebounds with a shock wave that violently blows the stars outer layers from the core. This huge, bright explosion is called a Type II _________________________. If the core that remains after a supernova has a mass of 1.4 – 3 solar masses it becomes a _______________ star, a very den ...
... own gravity and rebounds with a shock wave that violently blows the stars outer layers from the core. This huge, bright explosion is called a Type II _________________________. If the core that remains after a supernova has a mass of 1.4 – 3 solar masses it becomes a _______________ star, a very den ...
Lecture (Powerpoint)
... Collapse will usually happen in many places throughout the cloud at the same time This is why stars tend to be clustered Amount of stars depends on size of gas cloud producing stars ...
... Collapse will usually happen in many places throughout the cloud at the same time This is why stars tend to be clustered Amount of stars depends on size of gas cloud producing stars ...
Introduction Worksheet 1
... Astronomical observations indicate that the sun is tracing a circular orbit around the center of our galaxy. The radius of orbit is 2.7 x 1020 m with period T = 200 million years. a) Calculate the total mass of the central stars. b) Assume all of these stars have the same mass as our sun. How many d ...
... Astronomical observations indicate that the sun is tracing a circular orbit around the center of our galaxy. The radius of orbit is 2.7 x 1020 m with period T = 200 million years. a) Calculate the total mass of the central stars. b) Assume all of these stars have the same mass as our sun. How many d ...
Detectability of Earth-like Planets by Direct Imaging - RIT
... image each HZ once is ~200 days. • In less than 5 years each HZ could be searched 5 times to SNR = 5. ...
... image each HZ once is ~200 days. • In less than 5 years each HZ could be searched 5 times to SNR = 5. ...
ph507lecnote06
... Deuterium burning limit occurs at around 13 Jupiter masses (1 MJ = 1.9 x 1027 kg ~ 0.001 Msun It is important to realise that for young objects, there is no large change in properties at the deuterium burning limit. ALL young stars / brown dwarfs / planets liberate gravitational potential energy a ...
... Deuterium burning limit occurs at around 13 Jupiter masses (1 MJ = 1.9 x 1027 kg ~ 0.001 Msun It is important to realise that for young objects, there is no large change in properties at the deuterium burning limit. ALL young stars / brown dwarfs / planets liberate gravitational potential energy a ...
Supplemental Resources - Morehead Planetarium and Science
... These are stars with just a fraction of the mass of our Sun (as low as 7.5% the mass of the Sun). They don’t burn as hot in their cores, and their surface temperature is about 3,500 Kelvin. The light released from their surface looks mostly red to our eyes (although there are different colors mixed ...
... These are stars with just a fraction of the mass of our Sun (as low as 7.5% the mass of the Sun). They don’t burn as hot in their cores, and their surface temperature is about 3,500 Kelvin. The light released from their surface looks mostly red to our eyes (although there are different colors mixed ...
The Stars and the Solar System
... Some constellations can only be seen on a summer night. Others can only be seen on a winter night. This is because the Earth revolves around the sun. As it does, the part of the night sky that is visible from ...
... Some constellations can only be seen on a summer night. Others can only be seen on a winter night. This is because the Earth revolves around the sun. As it does, the part of the night sky that is visible from ...
The Stars and the Solar System
... Some constellations can only be seen on a summer night. Others can only be seen on a winter night. This is because the Earth revolves around the sun. As it does, the part of the night sky that is visible from ...
... Some constellations can only be seen on a summer night. Others can only be seen on a winter night. This is because the Earth revolves around the sun. As it does, the part of the night sky that is visible from ...
Study Guide for Stars and Galaxies Quiz ANSWER KEY
... Planetesimals collided and grew larger by sticking together, eventually combining to form the planets. 5. Why is there a difference in the inner and outer planets? It was so hot close to the sun that most water and other iceforming materials simply vaporized. Most gases escaped the gravity of t ...
... Planetesimals collided and grew larger by sticking together, eventually combining to form the planets. 5. Why is there a difference in the inner and outer planets? It was so hot close to the sun that most water and other iceforming materials simply vaporized. Most gases escaped the gravity of t ...
By plugging their latest findings into Earth`s climate patterns
... to HD 80606b. This planet, with a mass about 4 times that of Jupiter and located some 190 light-years away, has the most eccentric orbit of any known exoplanet. At the orbit’s farthest point, HD 80606b is 80 million miles (125 million kilometers) from its star, a distance slightly greater than Venus ...
... to HD 80606b. This planet, with a mass about 4 times that of Jupiter and located some 190 light-years away, has the most eccentric orbit of any known exoplanet. At the orbit’s farthest point, HD 80606b is 80 million miles (125 million kilometers) from its star, a distance slightly greater than Venus ...
WORD - hrsbstaff.ednet.ns.ca
... 11. A band of the celestial sphere extending on either side of the ecliptic that represents the path of the different celestial bodies (i.e. Moon, Sun, planets) and contains constellations like Gemini and Aquarius is called the a. North Celestial Pole. b. South Celestial Pole. c. Celestial Equator. ...
... 11. A band of the celestial sphere extending on either side of the ecliptic that represents the path of the different celestial bodies (i.e. Moon, Sun, planets) and contains constellations like Gemini and Aquarius is called the a. North Celestial Pole. b. South Celestial Pole. c. Celestial Equator. ...
Extrasolar Planetary Systems » American Scientist
... The discovery of this bizarre, completely unpredicted world spawned a revolutionary new astronomical field: the study of alien planetary systems. Astronomers have now found nearly 200 extrasolar worlds, which populate planetary systems of astonishing diversity. The sheer number shows that planet for ...
... The discovery of this bizarre, completely unpredicted world spawned a revolutionary new astronomical field: the study of alien planetary systems. Astronomers have now found nearly 200 extrasolar worlds, which populate planetary systems of astonishing diversity. The sheer number shows that planet for ...
Astronomy 10B Study Guide – by Chapter
... Prominences – loops of magnetic fields sticking up from the Sun We can see them because the stick off to the sides We can see them because the hot plasma moves The Solar Cycle There is an 11-year cycle for magnetic activity on the Sun All magnetic phenomena follow this cycle We have observed this fo ...
... Prominences – loops of magnetic fields sticking up from the Sun We can see them because the stick off to the sides We can see them because the hot plasma moves The Solar Cycle There is an 11-year cycle for magnetic activity on the Sun All magnetic phenomena follow this cycle We have observed this fo ...
Useful equations - Department of Physics and Astronomy
... greenhouse effect, T = 273 K and 373 K – the freezing and boiling points of pure water at standard atmospheric pressure – give the outer and inner radii of the habitable zone. For a realistic atmosphere, the greenhouse effect can be accounted for to pretty good approximation by taking T = 185K and 3 ...
... greenhouse effect, T = 273 K and 373 K – the freezing and boiling points of pure water at standard atmospheric pressure – give the outer and inner radii of the habitable zone. For a realistic atmosphere, the greenhouse effect can be accounted for to pretty good approximation by taking T = 185K and 3 ...
MIT
... • Since the nearest star is 4.22 light-years away, the Solar System size could extend almost half-way to the nearest star. • Astronomers think that the Sun's gravitational field dominates the gravitational forces of the other stars in the Solar System out to this distance. ...
... • Since the nearest star is 4.22 light-years away, the Solar System size could extend almost half-way to the nearest star. • Astronomers think that the Sun's gravitational field dominates the gravitational forces of the other stars in the Solar System out to this distance. ...
Our Space Journey
... sun as well. Moon orbit takes 27 1/2 days but ... Because earth keeps on moving it takes two extra days, 29 1/2 to come back in to the same place. It takes the earth one year / 365 days 1/4 days to completely orbit the sun. The parts of the sun rotate at different speeds . The sun is star made up of ...
... sun as well. Moon orbit takes 27 1/2 days but ... Because earth keeps on moving it takes two extra days, 29 1/2 to come back in to the same place. It takes the earth one year / 365 days 1/4 days to completely orbit the sun. The parts of the sun rotate at different speeds . The sun is star made up of ...
The definition of a planet - the Solar System Support Pages
... planet?” Does this definition allow us to answer that question, does it solve the problem? No, it doesn’t solve the problem, it merely changes the value of X. There are already twelve more candidates, and to decide if they qualify will require knowledge that is going to be very difficult to get. Co ...
... planet?” Does this definition allow us to answer that question, does it solve the problem? No, it doesn’t solve the problem, it merely changes the value of X. There are already twelve more candidates, and to decide if they qualify will require knowledge that is going to be very difficult to get. Co ...
Decline of Western Civilization (extended) knowledge of ancient
... regular observations of Sun, Moon and Planets large number of observations greatest precision to date did not detect any stellar parallax [parallax.avi] heliocentric model rejected due to lack of observed stellar parallax Tycho Brahe’s geocentric model [figure 4-12] Sun and Moon orbit Earth, while p ...
... regular observations of Sun, Moon and Planets large number of observations greatest precision to date did not detect any stellar parallax [parallax.avi] heliocentric model rejected due to lack of observed stellar parallax Tycho Brahe’s geocentric model [figure 4-12] Sun and Moon orbit Earth, while p ...
How did our solar system get here?
... • Third largest planet in our solar system. It is about four times the diameter of Earth. • Uranus’s atmosphere is made up of mostly hydrogen, helium, and methane. The methane causes the planet to have a bluish green appearance. The planet is also a gas giant so it has no solid surface. Under the at ...
... • Third largest planet in our solar system. It is about four times the diameter of Earth. • Uranus’s atmosphere is made up of mostly hydrogen, helium, and methane. The methane causes the planet to have a bluish green appearance. The planet is also a gas giant so it has no solid surface. Under the at ...
answers
... 2) The Sun has a mass of 2 x 1030 kg and the other stars have masses ranging from 1/10th of this to over 200 times more. How do we know the mass of the other stars? This is done by measuring the period and radii of the ___________ orbiting them. A) moons B) planets C) stars Explain: C) Not Moons. Th ...
... 2) The Sun has a mass of 2 x 1030 kg and the other stars have masses ranging from 1/10th of this to over 200 times more. How do we know the mass of the other stars? This is done by measuring the period and radii of the ___________ orbiting them. A) moons B) planets C) stars Explain: C) Not Moons. Th ...
Solar System
... • Nucleus = solid portion of a comet (inner layer). • Coma = halo of dust and gas that forms around the nucleus of a comet. Comets have “tails” that may extend millions of km into space! They face away from the sun. • Like other objects in space, comets orbit the sun. Comets have an elliptical shape ...
... • Nucleus = solid portion of a comet (inner layer). • Coma = halo of dust and gas that forms around the nucleus of a comet. Comets have “tails” that may extend millions of km into space! They face away from the sun. • Like other objects in space, comets orbit the sun. Comets have an elliptical shape ...
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.