REGIONAL exam 2013
... 5. Each question is worth one point. Tiebreaker questions are indicated with a (T#) in which the number indicates the order of consultation in the event of a tie. Tiebreaker questions count toward the overall raw score, and are only used as tiebreakers when there is a tie. In such cases, (T1) will b ...
... 5. Each question is worth one point. Tiebreaker questions are indicated with a (T#) in which the number indicates the order of consultation in the event of a tie. Tiebreaker questions count toward the overall raw score, and are only used as tiebreakers when there is a tie. In such cases, (T1) will b ...
Magnitudes and Colours of Stars - Lincoln
... Let’s leave brightness for now, and start thinking about stellar size: another important property for classifying stars. It is almost impossible to actually see a star through a telescope and measure its physical diameter. We can do this with objects within the Solar System, but the stars are simply ...
... Let’s leave brightness for now, and start thinking about stellar size: another important property for classifying stars. It is almost impossible to actually see a star through a telescope and measure its physical diameter. We can do this with objects within the Solar System, but the stars are simply ...
S T A R S
... Alpha Centauri is the closest binary to our sun and Proxima Centauri orbits this binary. Omega Centauri (NGC 5139) is globular cluster. The two pointers Apha & Beta Centauri point to Crux. (NGC is the abbreviation for New General Catalogue which is a listing of star clusters, nebulae and galaxies.) ...
... Alpha Centauri is the closest binary to our sun and Proxima Centauri orbits this binary. Omega Centauri (NGC 5139) is globular cluster. The two pointers Apha & Beta Centauri point to Crux. (NGC is the abbreviation for New General Catalogue which is a listing of star clusters, nebulae and galaxies.) ...
OUR COSMIC NEIGHBORS Story of the Stars
... Greek Arktos, meaning “ guardian.” This signified the Bear Guardian. After the two Bears had been placed in the sky, people probably felt that it was necessary to have someone look after them. It was in this way that the early races wrote their legends in the sky so that they could never be erased; ...
... Greek Arktos, meaning “ guardian.” This signified the Bear Guardian. After the two Bears had been placed in the sky, people probably felt that it was necessary to have someone look after them. It was in this way that the early races wrote their legends in the sky so that they could never be erased; ...
Bluffing your way in Astronomy: Taurus
... our Sun’s surface with one square metre of Aldebaran, the bit of Sun would be a blindingly-bright yellow, while the bit of Aldebaran would be a noticeably dimmer orange. However since Aldebaran has a surface area about 1600 the size of the Sun’s, there is a lot more of it to shine light into space, ...
... our Sun’s surface with one square metre of Aldebaran, the bit of Sun would be a blindingly-bright yellow, while the bit of Aldebaran would be a noticeably dimmer orange. However since Aldebaran has a surface area about 1600 the size of the Sun’s, there is a lot more of it to shine light into space, ...
ppt
... How can we test theories of star evolution? • Binaries help, because one can get mass so that theories can be tested • But stars change so slowly, it is impossible to test theories by watching just one star move through phases • Fortunately, there are 1011 stars in our Galaxy, all with a range of ma ...
... How can we test theories of star evolution? • Binaries help, because one can get mass so that theories can be tested • But stars change so slowly, it is impossible to test theories by watching just one star move through phases • Fortunately, there are 1011 stars in our Galaxy, all with a range of ma ...
Astronomy Report Southern Cross Authors Maria Constanza Pavez
... This circumpolar constellation (always situated above the horizon) of the South Hemisphere, is located between the Centauri and the Fly constellations, just above the Polar Antarctic Circle and it is crossed by the Milky Way. The Crux is visible the whole year between 25 N and 90 S degrees of latitu ...
... This circumpolar constellation (always situated above the horizon) of the South Hemisphere, is located between the Centauri and the Fly constellations, just above the Polar Antarctic Circle and it is crossed by the Milky Way. The Crux is visible the whole year between 25 N and 90 S degrees of latitu ...
Lecture 9a: More on Star formation and evolution 10/22
... about 100,000,000 degrees K for He burning ! Stars like our Sun remain main sequence longer due to this PHYS 162 ...
... about 100,000,000 degrees K for He burning ! Stars like our Sun remain main sequence longer due to this PHYS 162 ...
Universe ppt - Killeen ISD
... these are the most massive stars, 40x more massive than the sun; force/pull of gravity is so strong that nothing can escape, not even light ...
... these are the most massive stars, 40x more massive than the sun; force/pull of gravity is so strong that nothing can escape, not even light ...
Photoelectric Photometry of the Pleiades Student Manual
... of paper. Be sure your graph’s y axis runs from 0 at the top to 25 at the bottom as shown above. Creating too small a graph will make it difficult to plot data accurately. You will then create a second graph like the first on a clear plastic sheet. On this second graph you will plot a group of main ...
... of paper. Be sure your graph’s y axis runs from 0 at the top to 25 at the bottom as shown above. Creating too small a graph will make it difficult to plot data accurately. You will then create a second graph like the first on a clear plastic sheet. On this second graph you will plot a group of main ...
The life of Stars
... brighter than RR Lyrae, they can be used to measure out to further distances ...
... brighter than RR Lyrae, they can be used to measure out to further distances ...
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 ...
Foundation 1 - Discovering Astronomy
... graduate student Jocelyn Bell. • She found a radio source with a regular on-off-on cycle of exactly 1.3373011 seconds. • Some scientists speculated that this was evidence of an alien civilization’s communication system and dubbed the source LGM (Little Green Men!!!) • Today, we know pulsars are rapi ...
... graduate student Jocelyn Bell. • She found a radio source with a regular on-off-on cycle of exactly 1.3373011 seconds. • Some scientists speculated that this was evidence of an alien civilization’s communication system and dubbed the source LGM (Little Green Men!!!) • Today, we know pulsars are rapi ...
AST 207 7 Homew
... btend? (2 pts..) Explain thee principle(s) that you use aand where yoou got the vallues. The haalf-angle of th he sun is / , where R is its radiuus and D is its distance. If D Deneb replaceed the sun, thee radius is larger by a factoor of 90. Thereefore the anglle subtended bby the replaceement sun ...
... btend? (2 pts..) Explain thee principle(s) that you use aand where yoou got the vallues. The haalf-angle of th he sun is / , where R is its radiuus and D is its distance. If D Deneb replaceed the sun, thee radius is larger by a factoor of 90. Thereefore the anglle subtended bby the replaceement sun ...
Unit 8 Chapter 30
... How bright stars would appear if they were the same distance away from Earth or 32.6 Light years away (10 parsecs). Our sun would be a 4.8, average star, Rigel has an Absolute Magnitude of -6.4 which makes it appear brighter than most stars. Remember, all stars are not the same distance away, theref ...
... How bright stars would appear if they were the same distance away from Earth or 32.6 Light years away (10 parsecs). Our sun would be a 4.8, average star, Rigel has an Absolute Magnitude of -6.4 which makes it appear brighter than most stars. Remember, all stars are not the same distance away, theref ...
Life in the Universe
... On a clear night, with 20/20 vision, one can see about 3,000 stars at a given time. Ancient astronomers traced out “pictures” using groups of these stars. “Group of Stars” in Latin constellations ...
... On a clear night, with 20/20 vision, one can see about 3,000 stars at a given time. Ancient astronomers traced out “pictures” using groups of these stars. “Group of Stars” in Latin constellations ...
HW #02 Solutions
... Brighter astronomical objects have lower (not smaller) magnitudes than fainter objects. This is because the magnitude scale is a “backwards” scale that assigns numerically lower values of apparent (or absolute )magnitudes for brighter (or more luminous) objects. 3. How is apparent magnitude differe ...
... Brighter astronomical objects have lower (not smaller) magnitudes than fainter objects. This is because the magnitude scale is a “backwards” scale that assigns numerically lower values of apparent (or absolute )magnitudes for brighter (or more luminous) objects. 3. How is apparent magnitude differe ...
Neutron Star - Perry Local Schools
... from the star’s center, and cooler gas sinks toward the center. – During radiation, atoms absorb energy and transfer it to other atoms in random directions. Atoms near the star’s surface radiate energy into space. ...
... from the star’s center, and cooler gas sinks toward the center. – During radiation, atoms absorb energy and transfer it to other atoms in random directions. Atoms near the star’s surface radiate energy into space. ...
Ch 19 Directed Reading
... 17. A huge explosion in which a large star dies is called a _____________________________. 18. A star made up of neutrons is called a _____________________________. 19. A spinning neutron star that emits pulses of energy is called a _____________________________. 20. An object so massive and dense t ...
... 17. A huge explosion in which a large star dies is called a _____________________________. 18. A star made up of neutrons is called a _____________________________. 19. A spinning neutron star that emits pulses of energy is called a _____________________________. 20. An object so massive and dense t ...
this PDF file - University of Leicester Open Journals
... in an eternal and unchanging universe to one where even the stars themselves will one day fade away. Unlike most of the stars we can see with the naked eye, white dwarfs no longer generate heat via nuclear fusion. These stars still give off light as the cooling process takes billions of years. It is ...
... in an eternal and unchanging universe to one where even the stars themselves will one day fade away. Unlike most of the stars we can see with the naked eye, white dwarfs no longer generate heat via nuclear fusion. These stars still give off light as the cooling process takes billions of years. It is ...
Exam #2 Solutions
... The stars are all larger in radius than the Sun, being between 1 and 100 solar radii. All these stars will have very short lifetimes compared to the Sun. The main sequence stars will have lifetimes less than 1 billion years and the giants are at the end of their lives with perhaps as little as10 ...
... The stars are all larger in radius than the Sun, being between 1 and 100 solar radii. All these stars will have very short lifetimes compared to the Sun. The main sequence stars will have lifetimes less than 1 billion years and the giants are at the end of their lives with perhaps as little as10 ...
5. cosmic distance ladder ii: standard candles
... candles – their luminosities are not known and consequently their distances cannot be easily calculated. However, some special types of variable and exploding stars do have known, standard luminosities. Consequently, if you can identify a star as being one of these special types, you know its lumino ...
... candles – their luminosities are not known and consequently their distances cannot be easily calculated. However, some special types of variable and exploding stars do have known, standard luminosities. Consequently, if you can identify a star as being one of these special types, you know its lumino ...
Learning Objectives
... candles – their luminosities are not known and consequently their distances cannot be easily calculated. However, some special types of variable and exploding stars do have known, standard luminosities. Consequently, if you can identify a star as being one of these special types, you know its lumino ...
... candles – their luminosities are not known and consequently their distances cannot be easily calculated. However, some special types of variable and exploding stars do have known, standard luminosities. Consequently, if you can identify a star as being one of these special types, you know its lumino ...
Word doc - UC-HiPACC - University of California, Santa Cruz
... common set of genes,” said Mark Krumholz, associate professor at University of California, Santa Cruz. The pattern of abundances, set at birth, is consistent regardless of an individual star’s spectral type. But most stellar families don’t stay together: stars don’t form fast enough for them to rema ...
... common set of genes,” said Mark Krumholz, associate professor at University of California, Santa Cruz. The pattern of abundances, set at birth, is consistent regardless of an individual star’s spectral type. But most stellar families don’t stay together: stars don’t form fast enough for them to rema ...
Canis Minor
Canis Minor /ˌkeɪnɨs ˈmaɪnər/ is a small constellation in the northern celestial hemisphere. In the second century, it was included as an asterism, or pattern, of two stars in Ptolemy's 48 constellations, and it is counted among the 88 modern constellations. Its name is Latin for ""lesser dog"", in contrast to Canis Major, the ""greater dog""; both figures are commonly represented as following the constellation of Orion the hunter.Canis Minor contains only two stars brighter than the fourth magnitude, Procyon (Alpha Canis Minoris), with a magnitude of 0.34, and Gomeisa (Beta Canis Minoris), with a magnitude of 2.9. The constellation's dimmer stars were noted by Johann Bayer, who named eight stars including Alpha and Beta, and John Flamsteed, who numbered fourteen. Procyon is the seventh-brightest star in the night sky, as well as one of the closest. A yellow-white main sequence star, it has a white dwarf companion. Gomeisa is a blue-white main sequence star. Luyten's Star is a ninth-magnitude red dwarf and the Solar System's next closest stellar neighbour in the constellation after Procyon. The fourth-magnitude HD 66141, which has evolved into an orange giant towards the end of its life cycle, was discovered to have a planet in 2012. There are two faint deep sky objects within the constellation's borders. The 11 Canis-Minorids are a meteor shower that can be seen in early December.