Constellations and Asterisms
... stems from the various legends told about the constellation. However, before we get to these stories, let us look at the individual components of the constellation. Ursa Major is made up of 21 stars, along with 7 other messier objects. Most of the stars are named; only 6 are not. All of the stars, t ...
... stems from the various legends told about the constellation. However, before we get to these stories, let us look at the individual components of the constellation. Ursa Major is made up of 21 stars, along with 7 other messier objects. Most of the stars are named; only 6 are not. All of the stars, t ...
Today`s Powerpoint
... While on Main Sequence, stellar core has H -> He fusion, by p-p chain in stars like Sun or less massive. In more massive stars, “CNO cycle” becomes more important. ...
... While on Main Sequence, stellar core has H -> He fusion, by p-p chain in stars like Sun or less massive. In more massive stars, “CNO cycle” becomes more important. ...
Physical Attributes of Stars
... d. Identify how technology is used to observe distant objects in the sky. S4E2. Students will model the position and motion of the earth in the solar system and will explain the role of relative position and motion in determining sequence of the phases of the moon. a. Explain the day/night cycle of ...
... d. Identify how technology is used to observe distant objects in the sky. S4E2. Students will model the position and motion of the earth in the solar system and will explain the role of relative position and motion in determining sequence of the phases of the moon. a. Explain the day/night cycle of ...
Morning Announcements
... bright it would appear if we could move it to a distance of 10 parsecs (about 33 light-years). 11) Where would Betelgeuse appear brighter, in its true location or if it were at a distance of 10 parsecs? Explain your reasoning. ...
... bright it would appear if we could move it to a distance of 10 parsecs (about 33 light-years). 11) Where would Betelgeuse appear brighter, in its true location or if it were at a distance of 10 parsecs? Explain your reasoning. ...
Summary: Stellar Distances
... Interstellar dust makes stars look redder over long distances Temperatures can also be inferred from the appearance of a star’s spectrum - the pattern of spectral lines. This spectral typing is not affected by interstellar dust. Surface temperatures of stars almost all lie between 40,000°K for the “ ...
... Interstellar dust makes stars look redder over long distances Temperatures can also be inferred from the appearance of a star’s spectrum - the pattern of spectral lines. This spectral typing is not affected by interstellar dust. Surface temperatures of stars almost all lie between 40,000°K for the “ ...
Zairamink_Lifecycle of a Star
... gravitational pull on your head compared to your feet (known as tidal forces) would rip you apart. But suppose you survived that. Once you cross the event horizon there is no turning back. Then the only thing to do is avoid the black hole itself at all costs. If you run into that singularity it will ...
... gravitational pull on your head compared to your feet (known as tidal forces) would rip you apart. But suppose you survived that. Once you cross the event horizon there is no turning back. Then the only thing to do is avoid the black hole itself at all costs. If you run into that singularity it will ...
Chapter 20 Stellar Evolution (20.1-20.3)
... 20.3 The Death of a Low-Mass Star This outline of stellar formation and extinction can be compared to observations of star clusters. Here a globular cluster: The “blue stragglers” in this H-R diagram are not exceptions to our model; they are stars that have formed much more recently, probably from ...
... 20.3 The Death of a Low-Mass Star This outline of stellar formation and extinction can be compared to observations of star clusters. Here a globular cluster: The “blue stragglers” in this H-R diagram are not exceptions to our model; they are stars that have formed much more recently, probably from ...
A New Variable Star in Perseus
... The secondary minima are shown in Figure 6 and Figure 7. Using this two minima, the duration of the flat part of the secondary minimum is determined as 583 minutes. ...
... The secondary minima are shown in Figure 6 and Figure 7. Using this two minima, the duration of the flat part of the secondary minimum is determined as 583 minutes. ...
Unit 1
... cannot escape a black hole, how can we see one?” • If a black hole is in orbit around a companion star, the black hole can pull material away from it. ...
... cannot escape a black hole, how can we see one?” • If a black hole is in orbit around a companion star, the black hole can pull material away from it. ...
lecture
... • Because the gas hits the star before it reaches a stable orbital speed, there is no way to tell where the gas is in the system. • Therefore the only way to map it is with the velocities from the Doppler Shift and phases from the timing of the observations. • Make a contour map using velocity and p ...
... • Because the gas hits the star before it reaches a stable orbital speed, there is no way to tell where the gas is in the system. • Therefore the only way to map it is with the velocities from the Doppler Shift and phases from the timing of the observations. • Make a contour map using velocity and p ...
Lecture 6: Properties of Stars The Constellations The Constellations
... o Distant stars used as reference points. Closer star appears to move relative to distant stars during Earth’s orbit about Sun. o Parallax angle: p ~ 1 AU / d => d = ~ 1 AU / p ...
... o Distant stars used as reference points. Closer star appears to move relative to distant stars during Earth’s orbit about Sun. o Parallax angle: p ~ 1 AU / d => d = ~ 1 AU / p ...
Mon Oct 22, 2012 MOON IN CAPRICORNUS The moon is waxing
... What’s the farthest thing you can see without a telescope? Off in the northeastern sky late this evening, you can find the answer to this question, but only if the skies are very clear, and very dark, and you know just where to look. It’s a very dim smudge of light that lies in the direction of the ...
... What’s the farthest thing you can see without a telescope? Off in the northeastern sky late this evening, you can find the answer to this question, but only if the skies are very clear, and very dark, and you know just where to look. It’s a very dim smudge of light that lies in the direction of the ...
Planet Found In Nearest Star System To Earth
... [1] The components of a multiple star are named by adding uppercase letters to the name of the star. Alpha Centauri A is the brightest component, Alpha Centauri B is the slightly fainter second star and Alpha Centauri C is the much fainter Proxima Centauri. Proxima Centauri is slightly closer to Ear ...
... [1] The components of a multiple star are named by adding uppercase letters to the name of the star. Alpha Centauri A is the brightest component, Alpha Centauri B is the slightly fainter second star and Alpha Centauri C is the much fainter Proxima Centauri. Proxima Centauri is slightly closer to Ear ...
PREVIEW-Reading Quiz 06 - Chapter 12
... Barnard's Star, but will live a much shorter time on the main sequence. Why is that? Regulus has a much smaller fusion core than Barnard's Star and thus has less hydrogen to fuse. Because it is fully convective throughout its interior, Barnard's star can fuse its entire supply of hydrogen. Although ...
... Barnard's Star, but will live a much shorter time on the main sequence. Why is that? Regulus has a much smaller fusion core than Barnard's Star and thus has less hydrogen to fuse. Because it is fully convective throughout its interior, Barnard's star can fuse its entire supply of hydrogen. Although ...
Semester 1 Earth Science Gallery Review
... 5. What temperature is Sirius B? 6. This star is a red Giant. 7. What temperature is Bernard’s Star? 8. Which star is the dimmest (least bright) on the chart? 9. What category is the hottest star on the chart? 10. What color are the coolest stars? 11. What category of stars is hot but not very lumin ...
... 5. What temperature is Sirius B? 6. This star is a red Giant. 7. What temperature is Bernard’s Star? 8. Which star is the dimmest (least bright) on the chart? 9. What category is the hottest star on the chart? 10. What color are the coolest stars? 11. What category of stars is hot but not very lumin ...
What have we learned?
... – Some of the differences between galaxies may arise from the conditions in their protogalactic clouds. – Collisions can play a major role because they can transform two spiral galaxies into an elliptical galaxy. ...
... – Some of the differences between galaxies may arise from the conditions in their protogalactic clouds. – Collisions can play a major role because they can transform two spiral galaxies into an elliptical galaxy. ...
The Search for Earth-Like Planets
... Physicists have understood for a long time that the abrupt edge of the telescope’s “mirror” causes the bright diffraction rings. ...
... Physicists have understood for a long time that the abrupt edge of the telescope’s “mirror” causes the bright diffraction rings. ...
Stars: Other Suns
... • Measure directly only with binary systems of stars (lots!) • Revolve around center of mass • Apply Kepler’s 3rd law to get sum of masses from orbital period, separation (need distance!) ...
... • Measure directly only with binary systems of stars (lots!) • Revolve around center of mass • Apply Kepler’s 3rd law to get sum of masses from orbital period, separation (need distance!) ...
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.