Constellation ProjectConstellation Project(es)
... 19. When you have completed your data table show your teacher. 20. Using the “distance in light years” from your data table draw a line to show the scale of how much distance is between each of ...
... 19. When you have completed your data table show your teacher. 20. Using the “distance in light years” from your data table draw a line to show the scale of how much distance is between each of ...
Powerpoint
... (amount of energy put out every second in form of radiation). Luminosity also called “absolute brightness”. How bright a star appears to us is the “apparent brightness”, which depends on its luminosity and distance from us: apparent brightness ...
... (amount of energy put out every second in form of radiation). Luminosity also called “absolute brightness”. How bright a star appears to us is the “apparent brightness”, which depends on its luminosity and distance from us: apparent brightness ...
Quiz 1 Review
... When fusion is no longer going on in a star’s core it collapses colliding with the core. This is one of the most energetic events in the universe. More energy is emitted during the supernova than the star emitted its entire life. Important because: this is when all elements heavier than iron are for ...
... When fusion is no longer going on in a star’s core it collapses colliding with the core. This is one of the most energetic events in the universe. More energy is emitted during the supernova than the star emitted its entire life. Important because: this is when all elements heavier than iron are for ...
Charting The Universe - University of Windsor
... • However, from the perspective of earth, the Sun rises (with respect to the background stars) in the constellations of Cancer in the summer and Capricorn in the winter. • These highest and lowest elevations along the ecliptic define the “tropics” ...
... • However, from the perspective of earth, the Sun rises (with respect to the background stars) in the constellations of Cancer in the summer and Capricorn in the winter. • These highest and lowest elevations along the ecliptic define the “tropics” ...
Some 250 years ago, the philosopher Immanuel Universal
... in this artist’s impression. The Kepler space telescope (left) could yield even more. ...
... in this artist’s impression. The Kepler space telescope (left) could yield even more. ...
The Hertzsprung-Russell Diagram
... (individual masses can be gotten if you have a signal from both stars) The orbital period comes from watching the stars, or the periodic variation of their velocity or brightness. To get orbital semimajor axis, you need either the parallax to a visual system or the velocity from a spectroscopic syst ...
... (individual masses can be gotten if you have a signal from both stars) The orbital period comes from watching the stars, or the periodic variation of their velocity or brightness. To get orbital semimajor axis, you need either the parallax to a visual system or the velocity from a spectroscopic syst ...
Integrative Studies 410 Our Place in the Universe
... • Properties of objects scale like the perimeter, the area or the volume – Mass scales like the volume (“more of the same stuff”) – A roof will collect rain water proportional to its surface area ...
... • Properties of objects scale like the perimeter, the area or the volume – Mass scales like the volume (“more of the same stuff”) – A roof will collect rain water proportional to its surface area ...
xam2ans
... in the core of a main sequence star like the Sun? Answer: The rest mass energy of a neutron is larger than a proton plus electron. Consequently this reaction is endothermic, which means energetically unfavorable. (d) On the other hand, p+ + e → n + e does occur in a neutron star or a sufficiently ...
... in the core of a main sequence star like the Sun? Answer: The rest mass energy of a neutron is larger than a proton plus electron. Consequently this reaction is endothermic, which means energetically unfavorable. (d) On the other hand, p+ + e → n + e does occur in a neutron star or a sufficiently ...
Astronomy Test Review
... 8. Why can we see some stars all year round, but others only during certain seasons? 9. Draw what the moon looks like in each of the following phases: a. Waxing crescent b. Waning gibbous c. First quarter 10. Why is it that we can see Jupiter, Mars and Saturn very well during some nights, but Venus ...
... 8. Why can we see some stars all year round, but others only during certain seasons? 9. Draw what the moon looks like in each of the following phases: a. Waxing crescent b. Waning gibbous c. First quarter 10. Why is it that we can see Jupiter, Mars and Saturn very well during some nights, but Venus ...
a light year is
... Indicate the best answer to the following questions on the answer sheet provided. Please answer the essay questions on this copy of the test. All questions are worth 2 points unless noted otherwise. 1. A light year is a) the characteristic size of light , b) the distance the Earth travels around the ...
... Indicate the best answer to the following questions on the answer sheet provided. Please answer the essay questions on this copy of the test. All questions are worth 2 points unless noted otherwise. 1. A light year is a) the characteristic size of light , b) the distance the Earth travels around the ...
Lecture 19 - Stellar Lifecycles
... • The pressures of the surrounding layers are so high that the atoms of the iron core are crushed, smashing the electrons into the protons forming neutrons. • Once neutrons are formed the collapse stops, the surrounding gas is heated and explodes off the core. This is a supernova explosion. • The ex ...
... • The pressures of the surrounding layers are so high that the atoms of the iron core are crushed, smashing the electrons into the protons forming neutrons. • Once neutrons are formed the collapse stops, the surrounding gas is heated and explodes off the core. This is a supernova explosion. • The ex ...
Starry Night Lab
... [Use 3000x speed to advance backwards or forwards to see setting times] If Venus is west of the Sun, so it's rising earlier, give us: a) time of Sunrise; b) time of Venus-rise; c) how long Venus is up before sunrise (subtraction again). ...
... [Use 3000x speed to advance backwards or forwards to see setting times] If Venus is west of the Sun, so it's rising earlier, give us: a) time of Sunrise; b) time of Venus-rise; c) how long Venus is up before sunrise (subtraction again). ...
answer key
... which makes them burn off (or rather “fuse off”) their fuel faster, which makes them die sooner/younger! ...
... which makes them burn off (or rather “fuse off”) their fuel faster, which makes them die sooner/younger! ...
Endpoints of Stellar Evolution
... • Typical composition: C and/or O • Neutron stars are the equivalent of white dwarfs, but the degeneracy pressure is provided by neutrons, not electrons • The star cools passively as it radiates its latent heat,becoming fainter and cooler, and at some point it crystalises • Cooling time ~ many b ...
... • Typical composition: C and/or O • Neutron stars are the equivalent of white dwarfs, but the degeneracy pressure is provided by neutrons, not electrons • The star cools passively as it radiates its latent heat,becoming fainter and cooler, and at some point it crystalises • Cooling time ~ many b ...
Making Visual Estimates
... The brighter the star is, the smaller its magnitude number. 5.1 is brighter than 6.4. On the chart, notice that the dot is bigger (brighter) for the 5.1 star than the 6.4 star to its left. Variable ...
... The brighter the star is, the smaller its magnitude number. 5.1 is brighter than 6.4. On the chart, notice that the dot is bigger (brighter) for the 5.1 star than the 6.4 star to its left. Variable ...
(as Main Sequence Stars)?
... Luminosity = (energy radiated per cm2 per sec) x (area of surface in cm2) So: Luminosity (temperature) 4 x (surface area) Determine luminosity from apparent brightness and distance, determine temperature from spectrum (black-body curve or spectral lines), then find surface area, then find radius ( ...
... Luminosity = (energy radiated per cm2 per sec) x (area of surface in cm2) So: Luminosity (temperature) 4 x (surface area) Determine luminosity from apparent brightness and distance, determine temperature from spectrum (black-body curve or spectral lines), then find surface area, then find radius ( ...
Properties of Stars
... 2. Stars, although not perfect black bodies, are close enough so that Planck curves are useful descriptions of their radiation. ...
... 2. Stars, although not perfect black bodies, are close enough so that Planck curves are useful descriptions of their radiation. ...
Lecture 13
... In some cases astronomers can detect shifts as small as one part in a million. That implies detection of motion as small as 300m/s. ...
... In some cases astronomers can detect shifts as small as one part in a million. That implies detection of motion as small as 300m/s. ...
Ursa Minor
Ursa Minor (Latin: ""Smaller She-Bear"", contrasting with Ursa Major), also known as the Little Bear, is a constellation in the northern sky. Like the Great Bear, the tail of the Little Bear may also be seen as the handle of a ladle, hence the name Little Dipper. It was one of the 48 constellations listed by the 2nd-century astronomer Ptolemy, and remains one of the 88 modern constellations. Ursa Minor has traditionally been important for navigation, particularly by mariners, due to Polaris being the North Star.Polaris, the brightest star in the constellation, is a yellow-white supergiant and the brightest Cepheid variable star in the night sky, ranging from apparent magnitude 1.97 to 2.00. Beta Ursae Minoris, also known as Kochab, is an aging star that has swollen and cooled to become an orange giant with an apparent magnitude of 2.08, only slightly fainter than Polaris. Kochab and magnitude 3 Gamma Ursae Minoris have been called the ""guardians of the pole star"". Planets have been detected orbiting four of the stars, including Kochab. The constellation also contains an isolated neutron star—Calvera—and H1504+65, the hottest white dwarf yet discovered with a surface temperature of 200,000 K.