Stefan-Boltzmann Law Problems
... 6. A star is five times as luminous as the Sun and has a surface temperature of 98,000 K. What is its radius, compared to that of the Sun? Again, this is a Stefan-Boltzmann problem (luminosity, radius and temperature) that will be most easily solved using a ratio approach. See the first problem to r ...
... 6. A star is five times as luminous as the Sun and has a surface temperature of 98,000 K. What is its radius, compared to that of the Sun? Again, this is a Stefan-Boltzmann problem (luminosity, radius and temperature) that will be most easily solved using a ratio approach. See the first problem to r ...
NEUTRON STAR?
... Type Ia SupernovaE Thermonuclear Bombs in Space! Explosions of White Dwarfs in Binary Systems ...
... Type Ia SupernovaE Thermonuclear Bombs in Space! Explosions of White Dwarfs in Binary Systems ...
PowerPoint Presentation - Research in observational
... through unstable phases where not just the huge WR mass loss, but something altogether huger takes place. A real outburst (not a supernova) that loses many solar masses in a short time. • LBVs might be the most massive stars where radiation pressure is at the limit for stellar stability. • We observ ...
... through unstable phases where not just the huge WR mass loss, but something altogether huger takes place. A real outburst (not a supernova) that loses many solar masses in a short time. • LBVs might be the most massive stars where radiation pressure is at the limit for stellar stability. • We observ ...
What We Know About Stars So Far
... •Scientists also figured out that the color of the star told us something about their temperature •Red-colored stars are cooler in temperature compared to bluecolored stars. ...
... •Scientists also figured out that the color of the star told us something about their temperature •Red-colored stars are cooler in temperature compared to bluecolored stars. ...
Chapter 30 Notes
... • As a planetary nebula disperses, gravity causes the remaining matter in the star to collapse inward. • The matter collapses until it cannot be pressed further together. • A hot, extremely dense core of matter - a white dwarf - is left. White dwarfs shine for billions of years before they cool comp ...
... • As a planetary nebula disperses, gravity causes the remaining matter in the star to collapse inward. • The matter collapses until it cannot be pressed further together. • A hot, extremely dense core of matter - a white dwarf - is left. White dwarfs shine for billions of years before they cool comp ...
Planet Walk Activity
... 1) Measure the distance from the “Sun” to the #4 position of Mars, Jupiter, and Saturn. Plot and label their positions on the grid. (Each floor tile is 1 foot by 1 foot) 2) Plot and label the #2 and #6 positions of Earth on the grid, as well. 3) Draw lines from the #2 position of Earth through each ...
... 1) Measure the distance from the “Sun” to the #4 position of Mars, Jupiter, and Saturn. Plot and label their positions on the grid. (Each floor tile is 1 foot by 1 foot) 2) Plot and label the #2 and #6 positions of Earth on the grid, as well. 3) Draw lines from the #2 position of Earth through each ...
AJAstroProject
... million ly away. • It is in the same group as M95 (Previous) and M96 not photographed. • In this exposure you can see two other galaxies, NGC3384 and NGC3379. • NGC3384 is in the Leo Group I and NGC3379 is a more distant galaxy. This was a 90sec exposure through the V-filter. ...
... million ly away. • It is in the same group as M95 (Previous) and M96 not photographed. • In this exposure you can see two other galaxies, NGC3384 and NGC3379. • NGC3384 is in the Leo Group I and NGC3379 is a more distant galaxy. This was a 90sec exposure through the V-filter. ...
Eclipses, Distance, Parallax, Small Angle, and Magnitude (Professor
... • A penumbral eclipse occurs when the Moon only enters the Earth’s penumbra, they are not very impressive, and can be hard to observe ...
... • A penumbral eclipse occurs when the Moon only enters the Earth’s penumbra, they are not very impressive, and can be hard to observe ...
October 2014 - Newbury Astronomical Society
... Sun its outer layers would extend to half way between the orbits of Mars and Jupiter. It is so big that it is the only star that can be seen as a disc using giant telescopes. However the surface temperature is cool for a star at 3100°K when compared with the brighter surface of our Sun at 5500°K and ...
... Sun its outer layers would extend to half way between the orbits of Mars and Jupiter. It is so big that it is the only star that can be seen as a disc using giant telescopes. However the surface temperature is cool for a star at 3100°K when compared with the brighter surface of our Sun at 5500°K and ...
Homework 12 1. How would phases change if the Moon were the
... the same. There would be different distances of parts of the Moon from the Earth, but that would result in a very small effect. Drawings not to scale. ...
... the same. There would be different distances of parts of the Moon from the Earth, but that would result in a very small effect. Drawings not to scale. ...
Finding your longitude The trickier part of celestial navigation
... need to know the time for some location of known longitude, local time alone is not enough ...
... need to know the time for some location of known longitude, local time alone is not enough ...
Solar System has 8 planets instead of 9 — IAU official vote
... status as a planet. About 2,500 experts were in Prague for the International Astronomical Union’s (IAU) general assembly. The scientists rejected a proposal that would have retained Pluto as a planet and brought three other objects into the cosmic club. Pluto has been considered a planet since its d ...
... status as a planet. About 2,500 experts were in Prague for the International Astronomical Union’s (IAU) general assembly. The scientists rejected a proposal that would have retained Pluto as a planet and brought three other objects into the cosmic club. Pluto has been considered a planet since its d ...
Stellar Evolution (Formation)
... time tff = 1/(G)1/2. If sound crossing time is less than tff, (tsound
... time tff = 1/(G)1/2. If sound crossing time is less than tff, (tsound
THE MASS OF A STELLAR BLACK HOLE Andrea Massi
... A binary system is formed by two celestial bodies gravitationally bound orbiting a common center of mass. In our case the system is composed by a black hole and a star. The star moves around their common center of mass and we can analyze its movement using the Doppler Effect : ...
... A binary system is formed by two celestial bodies gravitationally bound orbiting a common center of mass. In our case the system is composed by a black hole and a star. The star moves around their common center of mass and we can analyze its movement using the Doppler Effect : ...
Stars, Constellations, and Quasars
... Some constellations and stars are very familiar. These include Ursa Major (the Great Bear), which includes the Big Dipper, and Ursa Minor (the Little Bear), which includes the Little Dipper. Polaris, which is also known as the North Star or the Pole Star, is an important star in the handle of Ursa M ...
... Some constellations and stars are very familiar. These include Ursa Major (the Great Bear), which includes the Big Dipper, and Ursa Minor (the Little Bear), which includes the Little Dipper. Polaris, which is also known as the North Star or the Pole Star, is an important star in the handle of Ursa M ...
The Milky Way - Computer Science Technology
... The previous chapter took you on a cosmic zoom through space and time. That quick preview sets the stage for the drama to come. In this chapter you can view the sky from Earth with your own eyes, and as you do, consider four ...
... The previous chapter took you on a cosmic zoom through space and time. That quick preview sets the stage for the drama to come. In this chapter you can view the sky from Earth with your own eyes, and as you do, consider four ...
Deaths of Stars - Chabot College
... Sharp pulse recurred every 1.3 sec. Determined it was 300 pc away. They called it a “pulsar”, but what was it? ...
... Sharp pulse recurred every 1.3 sec. Determined it was 300 pc away. They called it a “pulsar”, but what was it? ...
Chapter 2 User`s Guide to the Sky
... The previous chapter took you on a cosmic zoom through space and time. That quick preview sets the stage for the drama to come. In this chapter you can view the sky from Earth with your own eyes, and as you do, consider four ...
... The previous chapter took you on a cosmic zoom through space and time. That quick preview sets the stage for the drama to come. In this chapter you can view the sky from Earth with your own eyes, and as you do, consider four ...
Document
... Estimate the intensity of the radiation emitted per unit area from a star if it’s effective surface Temp is 6000K Estimate the energy emitted from a star if its peak wavelength is 600nm. Total power radiated Power output = E x surface area of star Surface area of a star = 4 R 2 Where R is the rad ...
... Estimate the intensity of the radiation emitted per unit area from a star if it’s effective surface Temp is 6000K Estimate the energy emitted from a star if its peak wavelength is 600nm. Total power radiated Power output = E x surface area of star Surface area of a star = 4 R 2 Where R is the rad ...
UniverseofGalaxies
... divided into SBa, SBb, SBc, with similar characteristics to regular spirals, except for a centrallyoriented bar ...
... divided into SBa, SBb, SBc, with similar characteristics to regular spirals, except for a centrallyoriented bar ...
Spica The Star - Emmi
... the mass of the Earth or 1,048 times the mass of Juipiter Spicas temperature is about 457. 490541 degrees fahrenhieght and the sun is 5778 kelvin red giant. Spicas distance from the sun is 260 light years away Spica is a blue giant the sun is yellow ...
... the mass of the Earth or 1,048 times the mass of Juipiter Spicas temperature is about 457. 490541 degrees fahrenhieght and the sun is 5778 kelvin red giant. Spicas distance from the sun is 260 light years away Spica is a blue giant the sun is yellow ...
Mon Aug 5, 2013 QUASAR DISCOVERY Quasars were discovered
... QUASAR DISCOVERY Quasars were discovered on August 5th, 1962. The first quasar found has the unromantic designation, 3C273, and it was discovered by a radio telescope when the object disappeared behind the moon during a lunar occultation. Quasi-stellar radio sources, or quasars, are amazingly faint ...
... QUASAR DISCOVERY Quasars were discovered on August 5th, 1962. The first quasar found has the unromantic designation, 3C273, and it was discovered by a radio telescope when the object disappeared behind the moon during a lunar occultation. Quasi-stellar radio sources, or quasars, are amazingly faint ...
Properties of Supernovae
... The student will use CCD images of the Crab Nebula, a Hubble Space Telescope image of SN1987a, and a CCD image of supernova 1993j to examine a number of characteristics of supernovae and their remnants. Background and Theory Supernova explosions are the most powerful events in the Universe. In less ...
... The student will use CCD images of the Crab Nebula, a Hubble Space Telescope image of SN1987a, and a CCD image of supernova 1993j to examine a number of characteristics of supernovae and their remnants. Background and Theory Supernova explosions are the most powerful events in the Universe. In less ...
4. Massive Stars and HII Regions
... huge amount of FUV radiation in the range from 90 – 200 nm. Such radiation dissociates and ionises most molecules and a number of abundant atoms (e.g. C, Si, S, Fe). If clouds are exposed to FUV, they form zones were most of the gas is atomic or partially ionised. These include interfaces between H ...
... huge amount of FUV radiation in the range from 90 – 200 nm. Such radiation dissociates and ionises most molecules and a number of abundant atoms (e.g. C, Si, S, Fe). If clouds are exposed to FUV, they form zones were most of the gas is atomic or partially ionised. These include interfaces between H ...
Corvus (constellation)
Corvus is a small constellation in the Southern Celestial Hemisphere. Its name comes from the Latin word ""raven"" or ""crow"". It includes only 11 stars with brighter than 4.02 magnitudes. One of the 48 constellations listed by the 2nd-century astronomer Ptolemy, it remains one of the 88 modern constellations. The four brightest stars, Gamma, Delta, Epsilon, and Beta Corvi from a distinctive quadrilateral in the night sky. The young star Eta Corvi has been found to have two debris disks.