Merit Badge College 2017 Astronomy
... Then explain how to safely observe the Sun, objects near the Sun, and the Moon. 2. Explain what light pollution is and how it and air pollution affect astronomy. 3. With the aid of diagrams (or real telescopes if available), do each of the following: a. Explain why binoculars and telescopes ar ...
... Then explain how to safely observe the Sun, objects near the Sun, and the Moon. 2. Explain what light pollution is and how it and air pollution affect astronomy. 3. With the aid of diagrams (or real telescopes if available), do each of the following: a. Explain why binoculars and telescopes ar ...
Stars
... to __________ times the diameter of the Sun! • These stars are extremely luminous • Super Giants usually explode in a tremendous event called a supernova _______________________ • In order for a star to eventually become a Super Giant, it must have started out much larger than the Sun ...
... to __________ times the diameter of the Sun! • These stars are extremely luminous • Super Giants usually explode in a tremendous event called a supernova _______________________ • In order for a star to eventually become a Super Giant, it must have started out much larger than the Sun ...
Math 111: Logarithm Scales
... where M0 is a very rough estimate of the seismic energy of an earthquake (in dynes-cm). (a) The Kern County earthquake of 1952 released about 2 × 1027 dyne-cm of seismic energy. What was the moment magnitude of the Kern County earthquake? (b) The El Centro earthquake of 1940 had a moment magnitude o ...
... where M0 is a very rough estimate of the seismic energy of an earthquake (in dynes-cm). (a) The Kern County earthquake of 1952 released about 2 × 1027 dyne-cm of seismic energy. What was the moment magnitude of the Kern County earthquake? (b) The El Centro earthquake of 1940 had a moment magnitude o ...
From Simulation to Visualization: Astrophysics Goes
... knowledge to interpret Representational Content more important than form ...
... knowledge to interpret Representational Content more important than form ...
My power point presentation on spectroscopy of stars (ppt file)
... • Sometime fitting works reasonably well, but not perfectly • In this case we can often obtain approximate values of parameters such as chemical abundances, rotation, … • The remaining discrepancies give us information about physics missing from the model • For the supergiant omicron Scorpii, the di ...
... • Sometime fitting works reasonably well, but not perfectly • In this case we can often obtain approximate values of parameters such as chemical abundances, rotation, … • The remaining discrepancies give us information about physics missing from the model • For the supergiant omicron Scorpii, the di ...
Measuring Stars` Properties - Test 1 Study Guide
... Distances to Stars • Important as determines actual brightness but hard to measure as stars are so far away Closest Alpha Centauri 4.3 light years = 4 x 1013 km (1 AU = distance Earth to Sun = 8 light minutes) • Close stars use stellar parallax (heliocentric parallax or triangulation ! same meani ...
... Distances to Stars • Important as determines actual brightness but hard to measure as stars are so far away Closest Alpha Centauri 4.3 light years = 4 x 1013 km (1 AU = distance Earth to Sun = 8 light minutes) • Close stars use stellar parallax (heliocentric parallax or triangulation ! same meani ...
color magnitude diagrams - AST 114, Astronomy Lab II for Spring
... we can calibrate the various types of stars that there are. These categories are called spectral types and allow us to group together stars with the same types of observed spectra, colors and brightnesses. This is what ends up on an H-R diagram. Figure 1 on the following page is an example of such a ...
... we can calibrate the various types of stars that there are. These categories are called spectral types and allow us to group together stars with the same types of observed spectra, colors and brightnesses. This is what ends up on an H-R diagram. Figure 1 on the following page is an example of such a ...
s%nffi - mrtavares
... The brightness of the rnain-sequence stars is also related to their irlass. The hottest blue stars are about 50 times more massive than the sun, while the coolest red stars are only 1/10 as massive. Therefore, on the H-R diagram, the main-sequence stars appear in decreasing order, from hotter, rnore ...
... The brightness of the rnain-sequence stars is also related to their irlass. The hottest blue stars are about 50 times more massive than the sun, while the coolest red stars are only 1/10 as massive. Therefore, on the H-R diagram, the main-sequence stars appear in decreasing order, from hotter, rnore ...
Eclipsing Binary Stars as Astrophysical Laboratories
... minimum is easily recognizable, as is the secondary minimum. The solid line is just the best fit to the data. This light curve tells me right away that the stars must be well separated from each other because first there is the primary eclipse, then a long time of no eclipse, and then the secondary ...
... minimum is easily recognizable, as is the secondary minimum. The solid line is just the best fit to the data. This light curve tells me right away that the stars must be well separated from each other because first there is the primary eclipse, then a long time of no eclipse, and then the secondary ...
Integrated Science
... of light. Hence the name black hole. Once you cross the event horizon you will continue to be stretched and squeezed until you reach the singularity. They are detected by X-rays given off by matter entering the black hole and their gravitational effects on neighboring stars. ...
... of light. Hence the name black hole. Once you cross the event horizon you will continue to be stretched and squeezed until you reach the singularity. They are detected by X-rays given off by matter entering the black hole and their gravitational effects on neighboring stars. ...
Microlensing Studies in Crowded Fields
... • Will describe an instrument that may well be able to deliver the performance that we need relatively easily, relatively quickly and without being impossibly expensive! • Finally will look at some advanced technologies that could give even better performance, and discuss the problems of operating s ...
... • Will describe an instrument that may well be able to deliver the performance that we need relatively easily, relatively quickly and without being impossibly expensive! • Finally will look at some advanced technologies that could give even better performance, and discuss the problems of operating s ...
Slide 1
... black hole as expected, according to new results from NASA's Chandra X-ray Observatory. This discovery shows that nature has a harder time making black holes than previously thought. ...
... black hole as expected, according to new results from NASA's Chandra X-ray Observatory. This discovery shows that nature has a harder time making black holes than previously thought. ...
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 ...
Practice Exam for 3 rd Astronomy Exam
... ly in diameter and encompass 300,000 solar masses of gas and dust. So large are these clouds that they are inhomogeneous being peppered with dense cores that are the seed points for future stars. If the GMC is very cold, about 10 K, then it can collapse under the gravity of its own mass and the proc ...
... ly in diameter and encompass 300,000 solar masses of gas and dust. So large are these clouds that they are inhomogeneous being peppered with dense cores that are the seed points for future stars. If the GMC is very cold, about 10 K, then it can collapse under the gravity of its own mass and the proc ...
Lyra
Lyra (/ˈlaɪərə/; Latin for lyre, from Greek λύρα) is a small constellation. It is one of 48 listed by the 2nd century astronomer Ptolemy, and is one of the 88 constellations recognized by the International Astronomical Union. Lyra was often represented on star maps as a vulture or an eagle carrying a lyre, and hence sometimes referred to as Aquila Cadens or Vultur Cadens. Beginning at the north, Lyra is bordered by Draco, Hercules, Vulpecula, and Cygnus. Lyra is visible from the northern hemisphere from spring through autumn, and nearly overhead, in temperate latitudes, during the summer months. From the southern hemisphere, it is visible low in the northern sky during the winter months.The lucida or brightest star—and one of the brightest stars in the sky—is the white main sequence star Vega, a corner of the Summer Triangle. Beta Lyrae is the prototype of a class of stars known as Beta Lyrae variables, binary stars so close to each other that they become egg-shaped and material flows from one to the other. Epsilon Lyrae, known informally as the Double Double, is a complex multiple star system. Lyra also hosts the Ring Nebula, the second-discovered and best-known planetary nebula.