Star Information ppt.
... stars like our sun that are fusing hydrogen into helium in their cores. Luminous mainsequence stars are hot (blue) Less luminous ones are cooler (yellow or red) ...
... stars like our sun that are fusing hydrogen into helium in their cores. Luminous mainsequence stars are hot (blue) Less luminous ones are cooler (yellow or red) ...
Stellar Evolution - University of California, Santa Cruz
... • Lower mass limit for stars is 0.08 solar masses -this is the mass below which the central temperature is <10 million K • Upper mass limit is around 100 solar masses set by inability for a star to hang on to its outer layers because high radiation pressure (high luminosity). ...
... • Lower mass limit for stars is 0.08 solar masses -this is the mass below which the central temperature is <10 million K • Upper mass limit is around 100 solar masses set by inability for a star to hang on to its outer layers because high radiation pressure (high luminosity). ...
Test 1 - History of Astronomy and Planetary Motion - ppt
... At the North Pole, apparent rotation would be a full circle of 360 degrees each 24 hours (15 degrees per hour). The further South you go, the slower the rotation. At the equator, there is no rotation at all. Below the equator, the rotation begins again but in a counterclockwise direction. Coriolis E ...
... At the North Pole, apparent rotation would be a full circle of 360 degrees each 24 hours (15 degrees per hour). The further South you go, the slower the rotation. At the equator, there is no rotation at all. Below the equator, the rotation begins again but in a counterclockwise direction. Coriolis E ...
Project 4: The HR diagram. Open clusters
... These stars are called White Dwarfs. "White" because they tend to be very hot ("white hot") and "Dwarfs" because they are so tiny. ...
... These stars are called White Dwarfs. "White" because they tend to be very hot ("white hot") and "Dwarfs" because they are so tiny. ...
White Dwarf Stars
... • Supported by electron degeneracy pressure. This is the tendency of atoms to resist compression. • The more massive a white dwarf, the smaller it is. A solar mass white dwarf is about the size of the Earth. • As white dwarfs radiate energy, they become cooler and less luminous gradually fading into ...
... • Supported by electron degeneracy pressure. This is the tendency of atoms to resist compression. • The more massive a white dwarf, the smaller it is. A solar mass white dwarf is about the size of the Earth. • As white dwarfs radiate energy, they become cooler and less luminous gradually fading into ...
Our Very Own Star: The Sun - Center for Math and Science Education
... Sometimes the solar winds can disrupt electricity, telephones, televisions, and radios. This can be very dangerous for police, firefighters, airplanes, and ships at sea. ...
... Sometimes the solar winds can disrupt electricity, telephones, televisions, and radios. This can be very dangerous for police, firefighters, airplanes, and ships at sea. ...
ASTRONOMY TEST THE SUN
... 1. _____ Sunspots are cooler than their surrounding area. 2. _____ Sunspots are more magnetic than their surrounding area. 3. _____ Sunspot activity peaks every 15 years. 4. _____ Fusion is the separation of Hydrogen isotopes 5. _____ Sunspots occur most near the poles 6. _____ Sunspots last from 80 ...
... 1. _____ Sunspots are cooler than their surrounding area. 2. _____ Sunspots are more magnetic than their surrounding area. 3. _____ Sunspot activity peaks every 15 years. 4. _____ Fusion is the separation of Hydrogen isotopes 5. _____ Sunspots occur most near the poles 6. _____ Sunspots last from 80 ...
Astro history notes 1
... We are connected to the stars The sun does appear in front of the zodiacal constellations Humans were a bit confused about the other details till recently! image from: http://www.kprf.ru/clipart/misc/astrology.jpg ...
... We are connected to the stars The sun does appear in front of the zodiacal constellations Humans were a bit confused about the other details till recently! image from: http://www.kprf.ru/clipart/misc/astrology.jpg ...
Transcript - Chandra X
... white dwarfs is orbiting each other at only 50,000 miles (1/5th the distance to the moon) every 5 minutes at an orbital speed of one million miles per hour. The orbit period is decreasing by 1.2 milliseconds/year which means they are moving closer to each other by 2 feet every day. This system shoul ...
... white dwarfs is orbiting each other at only 50,000 miles (1/5th the distance to the moon) every 5 minutes at an orbital speed of one million miles per hour. The orbit period is decreasing by 1.2 milliseconds/year which means they are moving closer to each other by 2 feet every day. This system shoul ...
norfolk skies - Norfolk Astronomical Society
... NGC 2327 - An interesting nebula extending north from a faint double star. It reminds me of the more famous NGC 2261 in Monocerous (Hubble’s Variable Nebula) because of the wedge-shaped extension. Most sources list it as a bright emission nebula but I question that. Emission nebulae “emitting” their ...
... NGC 2327 - An interesting nebula extending north from a faint double star. It reminds me of the more famous NGC 2261 in Monocerous (Hubble’s Variable Nebula) because of the wedge-shaped extension. Most sources list it as a bright emission nebula but I question that. Emission nebulae “emitting” their ...
ppt
... changed according to distance We can also fix the distance at the Earth’s orbit (1 AU) and vary the luminosity of star to see how that changes the habitable zone ...
... changed according to distance We can also fix the distance at the Earth’s orbit (1 AU) and vary the luminosity of star to see how that changes the habitable zone ...
Warm up to the Solar System`s Furnace
... once it reaches iron, its game over. Iron does not give out any energy to hold the Sun’s core up. So the Sun’s core will collapse within a second to form a beautiful planetary nebula with a white dwarf star at its centre. It won’t be as flashy as a Supernova, but it will be a celestial tombstone for ...
... once it reaches iron, its game over. Iron does not give out any energy to hold the Sun’s core up. So the Sun’s core will collapse within a second to form a beautiful planetary nebula with a white dwarf star at its centre. It won’t be as flashy as a Supernova, but it will be a celestial tombstone for ...
Milky Way structure
... • What is the closest galaxy to the Milky Way? The new answer to this old question is the Canis Major dwarf galaxy. For many years astronomers thought the Large Magellan Cloud (LMC) was closest, but its title was supplanted in 1994 by the Sagittarius dwarf galaxy. Recent measurements ind ...
... • What is the closest galaxy to the Milky Way? The new answer to this old question is the Canis Major dwarf galaxy. For many years astronomers thought the Large Magellan Cloud (LMC) was closest, but its title was supplanted in 1994 by the Sagittarius dwarf galaxy. Recent measurements ind ...
Phys 1533 Descriptive Astronomy
... Seasonal Changes • Summer solstice - when the sun is at its northernmost point above the celestial equator. This is the northern hemisphere’s longest day of the year. • Winter solstice - when the sun is at its southernmost point below the celestial equator. This is the northern hemisphere’s shortes ...
... Seasonal Changes • Summer solstice - when the sun is at its northernmost point above the celestial equator. This is the northern hemisphere’s longest day of the year. • Winter solstice - when the sun is at its southernmost point below the celestial equator. This is the northern hemisphere’s shortes ...
Intermediate - Maggie`s Earth Adventures
... red button and play the Science Diagramming game. Even if you are not currently studying any of the topics presented on the charts, it is good reading practice and will also improve study skills and concentration! Happy teaching, Kathy Answer Key: 1. Jan.2 2. 333,000 times 3. Hydrogen 4. 12,756 km 5 ...
... red button and play the Science Diagramming game. Even if you are not currently studying any of the topics presented on the charts, it is good reading practice and will also improve study skills and concentration! Happy teaching, Kathy Answer Key: 1. Jan.2 2. 333,000 times 3. Hydrogen 4. 12,756 km 5 ...
Today in Astronomy 102: electron degeneracy pressure and white
... period (plus Newton’s laws), we know that the mass of Sirius B is 1.00M . q From its observed color (blue-white), we know that its temperature is rather high: T = 29,200 K, compared to 5,800 K for the Sun and 10,000 K for Sirius A. q Its luminosity is only 0.003L , much less than that of Sirius A ...
... period (plus Newton’s laws), we know that the mass of Sirius B is 1.00M . q From its observed color (blue-white), we know that its temperature is rather high: T = 29,200 K, compared to 5,800 K for the Sun and 10,000 K for Sirius A. q Its luminosity is only 0.003L , much less than that of Sirius A ...
script
... The strength of the Lithium line can be calibrated with age, but it is generally not that good. In a solar type star the presence of Lithium most likely means it is young. But the processes that affect the strength of lithium are poorly known. For instance, strong Li is also found in some evolved gi ...
... The strength of the Lithium line can be calibrated with age, but it is generally not that good. In a solar type star the presence of Lithium most likely means it is young. But the processes that affect the strength of lithium are poorly known. For instance, strong Li is also found in some evolved gi ...
Deep Space (PDF: 224k)
... surface. Most of this time elapses in the “radiative zone,” where light scatters back and forth, but over time makes its way toward the surface. Above the radiative zone is the convective zone, where energy transport becomes a bit faster. Just as Earth’s atmosphere on a summer day gets warmed by the ...
... surface. Most of this time elapses in the “radiative zone,” where light scatters back and forth, but over time makes its way toward the surface. Above the radiative zone is the convective zone, where energy transport becomes a bit faster. Just as Earth’s atmosphere on a summer day gets warmed by the ...
Constellations and Distances to Stars
... How can we find the distance from Earth to stars? • Parallax • Stars within the same constellation are not necessarily close. They could appear to be almost touching and actually be one trillion kilometers apart. Very few stars are gravitationally bound to one another. • One way to know when a sta ...
... How can we find the distance from Earth to stars? • Parallax • Stars within the same constellation are not necessarily close. They could appear to be almost touching and actually be one trillion kilometers apart. Very few stars are gravitationally bound to one another. • One way to know when a sta ...
Uranometria 2000.0`s Dark Nebulae Database
... This atlas contains 367 dark nebulae, which are drawn to scale with a dashed outline if larger than 10′. Objects smaller than 10′ are drawn as dashed-line square boxes in two sizes (10′ to 5′ and less than 5′). On the 2× close-up maps they are plotted to scale if larger than 2.5′, on the 3× maps, if ...
... This atlas contains 367 dark nebulae, which are drawn to scale with a dashed outline if larger than 10′. Objects smaller than 10′ are drawn as dashed-line square boxes in two sizes (10′ to 5′ and less than 5′). On the 2× close-up maps they are plotted to scale if larger than 2.5′, on the 3× maps, if ...
Aquarius (constellation)
Aquarius is a constellation of the zodiac, situated between Capricornus and Pisces. Its name is Latin for ""water-carrier"" or ""cup-carrier"", and its symbol is 20px (Unicode ♒), a representation of water.Aquarius is one of the oldest of the recognized constellations along the zodiac (the sun's apparent path). It was one of the 48 constellations listed by the 2nd century AD astronomer Ptolemy, and it remains one of the 88 modern constellations. It is found in a region often called the Sea due to its profusion of constellations with watery associations such as Cetus the whale, Pisces the fish, and Eridanus the river.