Unit 1
... • Recall that the velocity necessary to • Also recall that nothing can travel avoid being gravitationally drawn faster than the speed of light, c, or back from an object (the escape 3108 m/s velocity) is: ...
... • Recall that the velocity necessary to • Also recall that nothing can travel avoid being gravitationally drawn faster than the speed of light, c, or back from an object (the escape 3108 m/s velocity) is: ...
A Sense of Scale - Young Scientists Journal
... diameter is roughly 1,392,000km, this is fairly negligible.). Nonetheless, our Sun does have issues: not only is it currently going through an extended period of sunspot minimums, but its magnetic field is less than half of the minimum recorded 22 years ago, and the Solar Wind has cooled by 13% in t ...
... diameter is roughly 1,392,000km, this is fairly negligible.). Nonetheless, our Sun does have issues: not only is it currently going through an extended period of sunspot minimums, but its magnetic field is less than half of the minimum recorded 22 years ago, and the Solar Wind has cooled by 13% in t ...
![Session: [B5B-3] S3 : Stars, Exoplanets and Stellar Systems Date](http://s1.studyres.com/store/data/007747311_2-a6f8878211ea1c8526dde4b9d41aac5c-300x300.png)
Chapter 5 Galaxies and Star Systems
... bright white river of stars. You don't need a telescope or even binoculars to see it. The view of the Milky Way is so bright because you're looking at the stars in your own galaxy. Quasars In the late 1960s, astronomers discovered objects that are very bright but also very far away. Many of these ob ...
... bright white river of stars. You don't need a telescope or even binoculars to see it. The view of the Milky Way is so bright because you're looking at the stars in your own galaxy. Quasars In the late 1960s, astronomers discovered objects that are very bright but also very far away. Many of these ob ...
Constellations and the Galactic Plane
... ancients to attribute names and stories to. Orion the hunter, Cygnus the swan, Leo the lion are all familiar names to northern hemisphere night sky watchers. There are 88 named constellations, each having numerous stars. This exercise takes you through some of the most recognizable ones in the Octob ...
... ancients to attribute names and stories to. Orion the hunter, Cygnus the swan, Leo the lion are all familiar names to northern hemisphere night sky watchers. There are 88 named constellations, each having numerous stars. This exercise takes you through some of the most recognizable ones in the Octob ...
The Interstellar Medium and Star Formation
... planets. Some planets become massive enough to also accumulate Hydrogen and Helium gas. • However, during and after formation, it seems that some planets are able to migrate in their disks, drifting inwards to settle close to the star. We do not know why this did not happen so much in our own Solar ...
... planets. Some planets become massive enough to also accumulate Hydrogen and Helium gas. • However, during and after formation, it seems that some planets are able to migrate in their disks, drifting inwards to settle close to the star. We do not know why this did not happen so much in our own Solar ...
Midterm Study Game
... Galileo), you notice there are actually TWO stars. This is called a Binary Star System or MULTIPLE Star system. Together, describe the absolute magnitude of EACH star, compared to the apparent magnitude of the two together. The absolute magnitude of each star is less than the total absolute magnitud ...
... Galileo), you notice there are actually TWO stars. This is called a Binary Star System or MULTIPLE Star system. Together, describe the absolute magnitude of EACH star, compared to the apparent magnitude of the two together. The absolute magnitude of each star is less than the total absolute magnitud ...
No Slide Title
... are really three stars all orbiting each other. One of these stars Proxima Centauri is the closest star to Earth next to our sun. There are many kinds of stars, big and small, close and far, bright and dim, some even change in brightness in a matter of hours (these are called pulsating stars). When ...
... are really three stars all orbiting each other. One of these stars Proxima Centauri is the closest star to Earth next to our sun. There are many kinds of stars, big and small, close and far, bright and dim, some even change in brightness in a matter of hours (these are called pulsating stars). When ...
January
... Morning Stars - Venus and Jupiter. Evening Stars - Saturn, Mars and Mercury. Special Events Anticipated: METEOR SHOWERS - Quadrantid Meteor Showers the first week of the month. Best seen after midnight and early morning and conditions are expected to be ideal. However, the number of meteors are expe ...
... Morning Stars - Venus and Jupiter. Evening Stars - Saturn, Mars and Mercury. Special Events Anticipated: METEOR SHOWERS - Quadrantid Meteor Showers the first week of the month. Best seen after midnight and early morning and conditions are expected to be ideal. However, the number of meteors are expe ...
astrocoursespring2012lec5-1-1
... While M65 is almost edge-on in appearance, M66 is angles so that we see more of its face, including one spiral arm that hangs more limply tha the other, as if the galaxy had suffered some cosmic fall that injured its shoulder – David Levy, p. 193 http://www.asod.info/?p=1699 (image asod – Dale Holt ...
... While M65 is almost edge-on in appearance, M66 is angles so that we see more of its face, including one spiral arm that hangs more limply tha the other, as if the galaxy had suffered some cosmic fall that injured its shoulder – David Levy, p. 193 http://www.asod.info/?p=1699 (image asod – Dale Holt ...
Exercise 9
... declination (think of this as a space latitude). The declination runs from -90° (celestial south pole) to +90° (celestial north pole). Both of these coordinates are laminated to the metal pole bases. In addition, the stars have been colored according to their spectral classes; blue balls represent O ...
... declination (think of this as a space latitude). The declination runs from -90° (celestial south pole) to +90° (celestial north pole). Both of these coordinates are laminated to the metal pole bases. In addition, the stars have been colored according to their spectral classes; blue balls represent O ...
Mountain Skies - Pisgah Astronomical Research Institute
... haze of the Milky Way appears as steam coming out of the spout. The center of the Galaxy is located in Sagittarius and this area of the sky is rich in star clusters and nebulae of interest to both astronomers and casual viewers of the sky. Try exploring this area of the sky with a pair of binoculars ...
... haze of the Milky Way appears as steam coming out of the spout. The center of the Galaxy is located in Sagittarius and this area of the sky is rich in star clusters and nebulae of interest to both astronomers and casual viewers of the sky. Try exploring this area of the sky with a pair of binoculars ...
Descriptions For Posters
... "birds-eye view" of the spiral structure. The galaxy is similar to our Milky Way, but our favorable view provides a better picture of the typical architecture of spiral galaxies. The spiral arms, which wind all the way down into the nucleus, are made up of young, bluish, hot stars formed in the past ...
... "birds-eye view" of the spiral structure. The galaxy is similar to our Milky Way, but our favorable view provides a better picture of the typical architecture of spiral galaxies. The spiral arms, which wind all the way down into the nucleus, are made up of young, bluish, hot stars formed in the past ...
Document
... discuss their plan against Mt. Olympus. “We need to come up with a plan,” Hephaestus said grimly. • “We need revenge on Mt.Olympus” Hades said, his gray, dark eyes signing no emotion. • The gods discussed their plan before putting it into action. • The next day, Hades led Hephaestus through the dept ...
... discuss their plan against Mt. Olympus. “We need to come up with a plan,” Hephaestus said grimly. • “We need revenge on Mt.Olympus” Hades said, his gray, dark eyes signing no emotion. • The gods discussed their plan before putting it into action. • The next day, Hades led Hephaestus through the dept ...
What is a Star?
... • Absolute magnitude of our sun is 4.6. – Its brightness compared to the rest of the stars, if you lined them all up next to each ...
... • Absolute magnitude of our sun is 4.6. – Its brightness compared to the rest of the stars, if you lined them all up next to each ...
Final Exam from 2005
... b. the same time c. later 15. True or False: The moon orbits the earth in the exact same plane as the earth orbits the sun. a. True b. False 16. Which of the following is NOT a result of a collision in our solar system? a. Jupiter’s red spot. b. The formation of our Moon. c. The tipped rotation axis ...
... b. the same time c. later 15. True or False: The moon orbits the earth in the exact same plane as the earth orbits the sun. a. True b. False 16. Which of the following is NOT a result of a collision in our solar system? a. Jupiter’s red spot. b. The formation of our Moon. c. The tipped rotation axis ...
Stellar Physics - University of Reading
... Classical Mechanics and Optics Thermodynamics and Statistical Mechanics Atomic and Molecular Physics Ideas from Observational Astronomy ...
... Classical Mechanics and Optics Thermodynamics and Statistical Mechanics Atomic and Molecular Physics Ideas from Observational Astronomy ...
Lecture 9a: More on Star formation and evolution 10/22
... • Measure distances (earlier: spectroscopic parallax) PHYS 162 ...
... • Measure distances (earlier: spectroscopic parallax) PHYS 162 ...
Astronomy news
... A 70ks long observation of RX J1856 was carried out with XMM staring on 2006 Oct. 24 at 00:30 UT. After data reduction, the event files result in net exposure times of 47 and 68 ks for the pn and MOS. Due to the very soft spectrum of RX J1856, they started timing analysis using the data of pn camera ...
... A 70ks long observation of RX J1856 was carried out with XMM staring on 2006 Oct. 24 at 00:30 UT. After data reduction, the event files result in net exposure times of 47 and 68 ks for the pn and MOS. Due to the very soft spectrum of RX J1856, they started timing analysis using the data of pn camera ...
Lecture 21
... (e) Now what will be the period of the star's Doppler shift pattern for its spectral lines? (f) What is the orbital speed of the star in its orbit around the center of mass? (g) What will be the wavelength shift for a visible line (say with wavelength 500 nm)? ...
... (e) Now what will be the period of the star's Doppler shift pattern for its spectral lines? (f) What is the orbital speed of the star in its orbit around the center of mass? (g) What will be the wavelength shift for a visible line (say with wavelength 500 nm)? ...
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.