Instructor Notes
... Experiments with gases and prisms showed that substances can absorb parts of any light that shines on them. These substances can re-emit that absorbed light at a later time. An emission line spectrum is equivalent to thermal emission by the cloud of gas. ...
... Experiments with gases and prisms showed that substances can absorb parts of any light that shines on them. These substances can re-emit that absorbed light at a later time. An emission line spectrum is equivalent to thermal emission by the cloud of gas. ...
celestial equator
... equator. It is a projection of the Earth's equator out to the celestial sphere. The number of degrees that a celestial object is north or south of the celestial equator is called the declination (DEC) It is the analogue of latitude on the sky. The analogue of longitude is called right ascension (RA) ...
... equator. It is a projection of the Earth's equator out to the celestial sphere. The number of degrees that a celestial object is north or south of the celestial equator is called the declination (DEC) It is the analogue of latitude on the sky. The analogue of longitude is called right ascension (RA) ...
award
... Exoplanets produce very little of their own light. Exoplanets are small compared to their parent star, so they reflect only a small portion of the star's light. Exoplanets tend to be far away from their parent stars, making it hard to get both the star and the exoplanet in the telescope's field of v ...
... Exoplanets produce very little of their own light. Exoplanets are small compared to their parent star, so they reflect only a small portion of the star's light. Exoplanets tend to be far away from their parent stars, making it hard to get both the star and the exoplanet in the telescope's field of v ...
Understanding Planetary Motion
... Aberration of Starlight • The true path of light from a star to a planet is in a straight line, however, due to the motion of a planet it appears as if starlight bends into a planet. This makes it seem as if the light is originating from a different location. – This is similar to driving in the sno ...
... Aberration of Starlight • The true path of light from a star to a planet is in a straight line, however, due to the motion of a planet it appears as if starlight bends into a planet. This makes it seem as if the light is originating from a different location. – This is similar to driving in the sno ...
1. How old is our sun now? How does its present luminosity
... 1. How old is our sun now? How does its present luminosity compare to the luminosity it had when the Solar System first formed? How much longer will it remain on the main sequence? What will happen to the sun after it leaves the main sequence? (a) Our sun is now 4.6 Byrs old. (b) When it first forme ...
... 1. How old is our sun now? How does its present luminosity compare to the luminosity it had when the Solar System first formed? How much longer will it remain on the main sequence? What will happen to the sun after it leaves the main sequence? (a) Our sun is now 4.6 Byrs old. (b) When it first forme ...
20_LectureOutline
... elements far beyond carbon in its core, leading to a very different fate. Its path across the H-R diagram is essentially a straight line—it stays at just about the same luminosity as it cools off. Eventually the star dies in a violent explosion called a supernova. ...
... elements far beyond carbon in its core, leading to a very different fate. Its path across the H-R diagram is essentially a straight line—it stays at just about the same luminosity as it cools off. Eventually the star dies in a violent explosion called a supernova. ...
D1 Stellar quantities (PPT)
... ▪ Initially the cloud was about several light years across. A small overdensity in the cloud caused the contraction to begin and the overdensity to grow, thus producing a faster contraction ▪ Initially, most of the motions of the cloud particles were random, yet the nebula had a net rotation. As col ...
... ▪ Initially the cloud was about several light years across. A small overdensity in the cloud caused the contraction to begin and the overdensity to grow, thus producing a faster contraction ▪ Initially, most of the motions of the cloud particles were random, yet the nebula had a net rotation. As col ...
Nature of Stars 2
... Kepler 3rd Law gives us a relationship between the average distance of a planet from the Sun and the amount of time it takes a planet to orbit the Sun once. For objects orbiting the Sun, P2 = a3 (P in years, a in AUs). Kepler’s relation does not work for objects that are not orbiting the Sun, for ex ...
... Kepler 3rd Law gives us a relationship between the average distance of a planet from the Sun and the amount of time it takes a planet to orbit the Sun once. For objects orbiting the Sun, P2 = a3 (P in years, a in AUs). Kepler’s relation does not work for objects that are not orbiting the Sun, for ex ...
Unit 4: Astronomy
... 2) Describe the unit of the length developed by astronomers to measure and describe distances to stars other than our own sun. 3) Explain the statement “looking deep into space is essentially looking back in time”. 4) Describe why some of the stars in the sky at night are only visible at certain tim ...
... 2) Describe the unit of the length developed by astronomers to measure and describe distances to stars other than our own sun. 3) Explain the statement “looking deep into space is essentially looking back in time”. 4) Describe why some of the stars in the sky at night are only visible at certain tim ...
star - TeacherWeb
... toward the red end of the spectrum. Light from stars that are moving toward the Earth is shifted slightly toward the blue end of the spectrum. When a source of light (like a star) is stationary, the wavelengths of light remain the same distance apart. When a source of light is moving toward you, the ...
... toward the red end of the spectrum. Light from stars that are moving toward the Earth is shifted slightly toward the blue end of the spectrum. When a source of light (like a star) is stationary, the wavelengths of light remain the same distance apart. When a source of light is moving toward you, the ...
Some Facts and Hypotheses regard
... partial eclipse at short intervals. When at its brightest Algol is of 2'1 magnitude, and when least bright is less than 3'8. Hence at minimum it is only one-sixth as bright as at maximum. Its whole period is 2-89 days, which is constant, except for a very slow secular lengthening. It falls from maxi ...
... partial eclipse at short intervals. When at its brightest Algol is of 2'1 magnitude, and when least bright is less than 3'8. Hence at minimum it is only one-sixth as bright as at maximum. Its whole period is 2-89 days, which is constant, except for a very slow secular lengthening. It falls from maxi ...
Age Aspects of Habitability
... photosynthetic process is much more complex, depending on many factors determined by thermal and non-thermal processes on a planet (Hikosaka et al., 2006; Shizgal & Arkos, 1996), and might be even more sensitive to variations in physical conditions. Even on the early Earth, physical conditions could ...
... photosynthetic process is much more complex, depending on many factors determined by thermal and non-thermal processes on a planet (Hikosaka et al., 2006; Shizgal & Arkos, 1996), and might be even more sensitive to variations in physical conditions. Even on the early Earth, physical conditions could ...
Johannes Kepler
... orbit the sun and Copernican values for the periods of the planets. These values were sets of data points, each separated by 687 days which was known to be one Martian year. ...
... orbit the sun and Copernican values for the periods of the planets. These values were sets of data points, each separated by 687 days which was known to be one Martian year. ...
Astronomy Fall 2013 Final Exam History of Astronomy Know: speed
... 4.Where was supernova 1987a located? Large Maganellic cloud in a near by galaxy 5. What produces a Type I supernova? Binary star system with a massive star (8 – 12 solar masses) and white dwarf collide 6.What is the Lighthouse model for pulsating stars? A spinning neutron star shooting a beam of lig ...
... 4.Where was supernova 1987a located? Large Maganellic cloud in a near by galaxy 5. What produces a Type I supernova? Binary star system with a massive star (8 – 12 solar masses) and white dwarf collide 6.What is the Lighthouse model for pulsating stars? A spinning neutron star shooting a beam of lig ...
Astrophysics
... • The mass of the Sun is found from the motion of its planets. In a similar way the mass of binary stars can be determined from their motion and separation. It is found that there is a simple mass-luminosity relationship (L m3) for main sequence stars. It can then be assumed that this applies to a ...
... • The mass of the Sun is found from the motion of its planets. In a similar way the mass of binary stars can be determined from their motion and separation. It is found that there is a simple mass-luminosity relationship (L m3) for main sequence stars. It can then be assumed that this applies to a ...
GET WORKSHEETS FROM MY ASSIGNMENTS PAGE Mrs
... 4.The most likely star color to have a planet with life would be ____ because: a. b. Consider Life Span and Life Zone size ...
... 4.The most likely star color to have a planet with life would be ____ because: a. b. Consider Life Span and Life Zone size ...
Owsley Brown II Portable Planetarium K-2 Program
... Earth. (5-ESS1-1) ● The orbits of Earth around the sun and of the moon around Earth, together with the rotation of Earth about an axis between its North and South poles, cause observable patterns. These include day and night; daily changes in the length and direction of shadows; and different positi ...
... Earth. (5-ESS1-1) ● The orbits of Earth around the sun and of the moon around Earth, together with the rotation of Earth about an axis between its North and South poles, cause observable patterns. These include day and night; daily changes in the length and direction of shadows; and different positi ...
88K PDF file
... A lot of you overstated the situation. I didn’t take off for this if you got the basic point that the gas which has gone through stars will have more Helium. Some of you, however, stated that all of the Hydrogen would be converted to Helium. This is not correct; as I mentioned in class, at its curre ...
... A lot of you overstated the situation. I didn’t take off for this if you got the basic point that the gas which has gone through stars will have more Helium. Some of you, however, stated that all of the Hydrogen would be converted to Helium. This is not correct; as I mentioned in class, at its curre ...
View PDF - Sara Seager
... it directly across the face of its host star. For such a “transiting” planet, it is possible to determine the planet’s mass and radius, its orbital parameters, and its atmospheric properties.1 Of particular interest are planets with sizes between those of the Earth and Neptune. Little is known about ...
... it directly across the face of its host star. For such a “transiting” planet, it is possible to determine the planet’s mass and radius, its orbital parameters, and its atmospheric properties.1 Of particular interest are planets with sizes between those of the Earth and Neptune. Little is known about ...
star guide 2013
... Some are bits of space junk while others work hard sending back information about our weather, providing communication services or even spying! Some satellites have large flat reflective panels on them which appear to flash when they catch the Sun’s light. The brightest of these flashes are called I ...
... Some are bits of space junk while others work hard sending back information about our weather, providing communication services or even spying! Some satellites have large flat reflective panels on them which appear to flash when they catch the Sun’s light. The brightest of these flashes are called I ...
Direct Imaging Detection of Planets
... telescope and is currently undergoing commissioning. The light beam produced by this apparatus will be fed into CHARIS, currently in an advanced stage of construction at Princeton’s Department of Mechanical and Aerospace Engineering. CHARIS (Coronagraphic High-AngularResolution Imaging Spectrograph) ...
... telescope and is currently undergoing commissioning. The light beam produced by this apparatus will be fed into CHARIS, currently in an advanced stage of construction at Princeton’s Department of Mechanical and Aerospace Engineering. CHARIS (Coronagraphic High-AngularResolution Imaging Spectrograph) ...