hubble amazing universe worksheet
... 8. This region is _____________ light years across! 9. Hubble even showed a star about to die! As a star runs out of ______________, it expands, and it is released into space. 10. Someday, our own star will expand and engulf the earth. Luckily, this will happen in ________________billion years. 11. ...
... 8. This region is _____________ light years across! 9. Hubble even showed a star about to die! As a star runs out of ______________, it expands, and it is released into space. 10. Someday, our own star will expand and engulf the earth. Luckily, this will happen in ________________billion years. 11. ...
Planetary Configurations
... • Recall escape speed: • The Sch. Radius (RS) is the distance at which vesc=c for a BH: ...
... • Recall escape speed: • The Sch. Radius (RS) is the distance at which vesc=c for a BH: ...
Astronomy Assignment #10 Solutions
... 1. What does a magnitude interval of 5 correspond to in brightness? How about an interval of 1? How about an interval of 3? A magnitude interval of 5 corresponds to a factor of 100 in brightness. A magnitude interval of 1 corresponds to a factor of about 2.5 in brightness. A magnitude interval of 3c ...
... 1. What does a magnitude interval of 5 correspond to in brightness? How about an interval of 1? How about an interval of 3? A magnitude interval of 5 corresponds to a factor of 100 in brightness. A magnitude interval of 1 corresponds to a factor of about 2.5 in brightness. A magnitude interval of 3c ...
STELLAR EVOLUTION
... Theoretical models of the internal structure of stars, derived using computer-intensive calculations, are compared with the observed properties of individual stars. The theoretical models are then continually “tweaked” to match the data. These models incorporate the basic laws of physics as we und ...
... Theoretical models of the internal structure of stars, derived using computer-intensive calculations, are compared with the observed properties of individual stars. The theoretical models are then continually “tweaked” to match the data. These models incorporate the basic laws of physics as we und ...
Astronomy Study Guide
... how it appears due to distance, absolute magnitude is how bright it actually is if they are all the same distance ...
... how it appears due to distance, absolute magnitude is how bright it actually is if they are all the same distance ...
The Sun, Stars, and Beyond
... rocky planet, will be made of hot, highly compressed carbon, cooling off for billions of years as a White Dwarf, shining by its heat alone. • What do you get when you compress hot carbon for a long time? ...
... rocky planet, will be made of hot, highly compressed carbon, cooling off for billions of years as a White Dwarf, shining by its heat alone. • What do you get when you compress hot carbon for a long time? ...
Questions to answer - high school teachers at CERN
... a few hundred meters but in the case of a star is only a few cm. So the atmospheric turbulence may affect the image of the stars but not those of the planets. That is why the stars twinkle at night but the planets do not. ...
... a few hundred meters but in the case of a star is only a few cm. So the atmospheric turbulence may affect the image of the stars but not those of the planets. That is why the stars twinkle at night but the planets do not. ...
Last time: Star Clusters (sec. 19.6)
... spherical shell of gas called a planetary nebula. (see pretty images, pp. 526527) (Note: “planetary” has nothing to do with planets; just a historical term.) What remains, the degenerate hot core, now unveiled, is a young white dwarf, which will just cool and fade forever (unless it receives some ne ...
... spherical shell of gas called a planetary nebula. (see pretty images, pp. 526527) (Note: “planetary” has nothing to do with planets; just a historical term.) What remains, the degenerate hot core, now unveiled, is a young white dwarf, which will just cool and fade forever (unless it receives some ne ...
Stars Study Guide KEY
... 10. What is “apparent magnitude” and what does it depend on? It is how bright a star appears to our eyes as seen here on Earth. It depends on how far away the star is and how bright the star actually is (it’s absolute magnitude) 11. What is “absolute magnitude” and what does it depend on? It is how ...
... 10. What is “apparent magnitude” and what does it depend on? It is how bright a star appears to our eyes as seen here on Earth. It depends on how far away the star is and how bright the star actually is (it’s absolute magnitude) 11. What is “absolute magnitude” and what does it depend on? It is how ...
Lecture16
... than 0.1 arcseconds (a quarter at 5 km) First measured in 1838 by Bessell (remember the greeks...). Parsec: the distance of a star that has a parallax angle of 1 arcsecond (“PARallax ...
... than 0.1 arcseconds (a quarter at 5 km) First measured in 1838 by Bessell (remember the greeks...). Parsec: the distance of a star that has a parallax angle of 1 arcsecond (“PARallax ...
Earth
... hydrogen (about 70%) and helium (about 28%). Carbon, nitrogen and oxygen make up 1.5% and the other 0.5% is made up of small amounts of many other elements such as neon, iron, silicon, magnesium and sulfur. The sun shines because it is burning hydrogen into helium in its extremely hot core. This mea ...
... hydrogen (about 70%) and helium (about 28%). Carbon, nitrogen and oxygen make up 1.5% and the other 0.5% is made up of small amounts of many other elements such as neon, iron, silicon, magnesium and sulfur. The sun shines because it is burning hydrogen into helium in its extremely hot core. This mea ...
fall_2000_final
... B. composition. C. temperature. D. all of the above. E. only answers A and B 35. The peak or maximum wavelength that you are emitting right now lies in which portion of the electromagnetic spectrum? A. radio B. infrared C. visible D. ultraviolet E. X-ray ...
... B. composition. C. temperature. D. all of the above. E. only answers A and B 35. The peak or maximum wavelength that you are emitting right now lies in which portion of the electromagnetic spectrum? A. radio B. infrared C. visible D. ultraviolet E. X-ray ...
ASTR100 Class 01 - University of Maryland Department of
... Two stars have the same surface temperature but different luminosities. How can that be? Answer: one is bigger than the other! Why? Thermal radiation law: objects at a given temperature emit a certain luminosity per unit surface area. Hence the more luminous star has a larger surface area, ...
... Two stars have the same surface temperature but different luminosities. How can that be? Answer: one is bigger than the other! Why? Thermal radiation law: objects at a given temperature emit a certain luminosity per unit surface area. Hence the more luminous star has a larger surface area, ...
Tutorial: Continuous Spectra
... this star as measured from the earth? What color is the star to a observer on the Earth? From the previous example, the peak wavelength for the continuous spectrum at the surface of the star is λPeak = 0.29/50000 cm = 5.8 x 10-7 cm = 580 nm. However, since the star is moving away from the Earth, it’ ...
... this star as measured from the earth? What color is the star to a observer on the Earth? From the previous example, the peak wavelength for the continuous spectrum at the surface of the star is λPeak = 0.29/50000 cm = 5.8 x 10-7 cm = 580 nm. However, since the star is moving away from the Earth, it’ ...
Life Cycles of Stars
... • Star expels outermost layers as Planetary Nebulae • Inert core left as white dwarf • Dwarf has such tiny surface area it takes billions of years to cool • Coolest (oldest?) known: 3900 K ...
... • Star expels outermost layers as Planetary Nebulae • Inert core left as white dwarf • Dwarf has such tiny surface area it takes billions of years to cool • Coolest (oldest?) known: 3900 K ...
Lecture2
... becomes two dimensional due to our perspective on Earth. The north and south pole of the Earth extend out to the north and south celestial poles The equator of the Earth extends out to the celestial ...
... becomes two dimensional due to our perspective on Earth. The north and south pole of the Earth extend out to the north and south celestial poles The equator of the Earth extends out to the celestial ...
Chemically Peculiar/Magnetic Stars and the a photometry
... Hans Michael Maitzen, Ernst Paunzen Institute for Astronomy, University of Vienna ...
... Hans Michael Maitzen, Ernst Paunzen Institute for Astronomy, University of Vienna ...
Stars Student Page Purpose To investigate stellar classification by
... output of approximately 1300 angstroms, which is a far shorter wavelength than the human eye can detect (4000-7000 angstroms). Although a star of this temperature will still radiate light in the visible portion of the spectrum, humans would no doubt have to utilize some sort of visual aid in order t ...
... output of approximately 1300 angstroms, which is a far shorter wavelength than the human eye can detect (4000-7000 angstroms). Although a star of this temperature will still radiate light in the visible portion of the spectrum, humans would no doubt have to utilize some sort of visual aid in order t ...
Perseus (constellation)
Perseus, named after the Greek mythological hero Perseus, is a constellation in the northern sky. It was one of 48 listed by the 2nd-century astronomer Ptolemy and among the 88 modern constellations defined by the International Astronomical Union (IAU). It is located in the northern celestial hemisphere near several other constellations named after legends surrounding Perseus, including Andromeda to the west and Cassiopeia to the north. Perseus is also bordered by Aries and Taurus to the south, Auriga to the east, Camelopardalis to the north, and Triangulum to the west.The galactic plane of the Milky Way passes through Perseus but is mostly obscured by molecular clouds. The constellation's brightest star is the yellow-white supergiant Alpha Persei (also called Mirfak), which shines at magnitude 1.79. It and many of the surrounding stars are members of an open cluster known as the Alpha Persei Cluster. The best-known star, however, is Algol (Beta Persei), linked with ominous legends because of its variability, which is noticeable to the naked eye. Rather than being an intrinsically variable star, it is an eclipsing binary. Other notable star systems in Perseus include X Persei, a binary system containing a neutron star, and GK Persei, a nova that peaked at magnitude 0.2 in 1901. The Double Cluster, comprising two open clusters quite near each other in the sky, was known to the ancient Chinese. The constellation gives its name to the Perseus Cluster (Abell 426), a massive galaxy cluster located 250 million light-years from Earth. It hosts the radiant of the annual Perseids meteor shower—one of the most prominent meteor showers in the sky.