Word
... Just as brightness is related to apparent magnitude, luminosity is related to a term called “absolute magnitude.” Astronomers refer to a star’s “absolute magnitude (M)” as the apparent magnitude it would have at an arbitrary standardized distance of 10 parsecs (i.e., 32.6 light-years). #2. Combine ...
... Just as brightness is related to apparent magnitude, luminosity is related to a term called “absolute magnitude.” Astronomers refer to a star’s “absolute magnitude (M)” as the apparent magnitude it would have at an arbitrary standardized distance of 10 parsecs (i.e., 32.6 light-years). #2. Combine ...
122final10
... There is no evidence of their existence They only form when two stars collide with one another none of the above are characteristics. ...
... There is no evidence of their existence They only form when two stars collide with one another none of the above are characteristics. ...
File
... The length of a star’s life is determined by its mass. A star with a small mass will live longer than a star with a large mass because it burns less gas. The temperature of a star determines its color. The hottest stars are blue or white and the coolest stars are red or yellow. As a star goes throug ...
... The length of a star’s life is determined by its mass. A star with a small mass will live longer than a star with a large mass because it burns less gas. The temperature of a star determines its color. The hottest stars are blue or white and the coolest stars are red or yellow. As a star goes throug ...
Chapter 16 Lesson 2: What is a Star
... 1. If the Sun is a gumball machine, the Earth is one gumball. c. How bright a star looks depends on the star’s size, temperature, and distance from Earth. d. Earth’s sun is an average size star, there are larger stars called supergiants. 1. Sirius is larger, hotter, and brighter than the Sun, but it ...
... 1. If the Sun is a gumball machine, the Earth is one gumball. c. How bright a star looks depends on the star’s size, temperature, and distance from Earth. d. Earth’s sun is an average size star, there are larger stars called supergiants. 1. Sirius is larger, hotter, and brighter than the Sun, but it ...
Bez tytułu slajdu
... burn into iron, first collapse, and then explode into supernova. A part of the mass is expelled and the remnants form a core of about 20 km diameter made of neutrons. The expelled material contains heavy elements and can be re-cycled, to form a system, like the Solar one. ...
... burn into iron, first collapse, and then explode into supernova. A part of the mass is expelled and the remnants form a core of about 20 km diameter made of neutrons. The expelled material contains heavy elements and can be re-cycled, to form a system, like the Solar one. ...
Phys133-Sample MT2
... 6) No stars have been found with masses greater than 200-300 times our Sun because A) they would fragment into binary stars because of their rapid rotation. B) they would generate so much power that they would blow themselves apart. C) they are not bright enough to be seen nearby. D) molecular cloud ...
... 6) No stars have been found with masses greater than 200-300 times our Sun because A) they would fragment into binary stars because of their rapid rotation. B) they would generate so much power that they would blow themselves apart. C) they are not bright enough to be seen nearby. D) molecular cloud ...
Startalk
... A big glowing ball of gas! Contains mainly H and He They have a core that is dense and super hot! Nuclear fusion is the source of their energy! ...
... A big glowing ball of gas! Contains mainly H and He They have a core that is dense and super hot! Nuclear fusion is the source of their energy! ...
Hubble Telescope Pictures
... The Sombrero Galaxy - 28 million light years from Earth - was voted best picture taken by the Hubble telescope. The dimensions of the galaxy, officially called M104, are as spectacular as its appearance. It has 800 billion suns and is 50,000 light years across. ...
... The Sombrero Galaxy - 28 million light years from Earth - was voted best picture taken by the Hubble telescope. The dimensions of the galaxy, officially called M104, are as spectacular as its appearance. It has 800 billion suns and is 50,000 light years across. ...
Understanding Stars
... • Brighter means closer for stars of the same type – different kinds of stars can be different brightnesses regardless of their distances • The actual brightness depends on the star’s diameter ...
... • Brighter means closer for stars of the same type – different kinds of stars can be different brightnesses regardless of their distances • The actual brightness depends on the star’s diameter ...
Chapter 27 Stars and Galaxies
... Apparent Magnitude The measurement of brightness is assigned a number on a scale – Brightest stars have lowest numbers – Dimmest stars have highest numbers ...
... Apparent Magnitude The measurement of brightness is assigned a number on a scale – Brightest stars have lowest numbers – Dimmest stars have highest numbers ...
Star Formation/Llfe Cycle Notes
... d. Center of protostar gets dense enough and therefore hot enough (3000K+) to become luminous, however not visible due to exterior of gas and dust surrounding it. 3) Phophids- YSO’s starting to disk a. start to get charged particles 4) Early star- Does a stutter step with nuclear fusion which blows ...
... d. Center of protostar gets dense enough and therefore hot enough (3000K+) to become luminous, however not visible due to exterior of gas and dust surrounding it. 3) Phophids- YSO’s starting to disk a. start to get charged particles 4) Early star- Does a stutter step with nuclear fusion which blows ...
Astronomy Fall 2013 Final Exam History of Astronomy Know: speed
... direction). Because to find longitude you would need a tool that measures 3D. 6. Who is credited with inventing the first telescope? When? Give two ways this tool helps to overcome difficulties of studying astronomy (how did this help). ...
... direction). Because to find longitude you would need a tool that measures 3D. 6. Who is credited with inventing the first telescope? When? Give two ways this tool helps to overcome difficulties of studying astronomy (how did this help). ...
Problem Set #3
... d. What is the mass of the Galaxy contained within R0? e. Do you think this Galaxy is likely to be more or less massive than the Milky Way? 4. You’re still bored in your new galaxy, so you decide to build a large telescope with adaptive optics capable of observing the center of the galaxy. There you ...
... d. What is the mass of the Galaxy contained within R0? e. Do you think this Galaxy is likely to be more or less massive than the Milky Way? 4. You’re still bored in your new galaxy, so you decide to build a large telescope with adaptive optics capable of observing the center of the galaxy. There you ...
Astr40 HWIII(new) - Empyrean Quest Publishers
... 35. The spiral arm disk of the Milky Way is roughly how many light years across? A. 10,000 B. 100,000 C. a million 36. Stars in the disk of the Milky Way orbit in circles. (T or F) 37. There is a mass of about a hundred billion solar masses inside of the Sun's orbit about galactic center. The sun' o ...
... 35. The spiral arm disk of the Milky Way is roughly how many light years across? A. 10,000 B. 100,000 C. a million 36. Stars in the disk of the Milky Way orbit in circles. (T or F) 37. There is a mass of about a hundred billion solar masses inside of the Sun's orbit about galactic center. The sun' o ...
A star is a - Trimble County Schools
... __________________ cannot distinguish the distance a star is from earth • Clusters are stars close to each other due to gravitational attraction Binary Stars • _____________________________ – Pairs of stars that revolve around one another – Gravitationally bound & orbiting a common center of mass • ...
... __________________ cannot distinguish the distance a star is from earth • Clusters are stars close to each other due to gravitational attraction Binary Stars • _____________________________ – Pairs of stars that revolve around one another – Gravitationally bound & orbiting a common center of mass • ...
Star Life Cycle
... A Red Giant Star is a main sequence star that is not longer in equilibrium. There is a ...
... A Red Giant Star is a main sequence star that is not longer in equilibrium. There is a ...
Stars, Galaxies & Universe
... Classifying Stars • Stars are classified by size, temperature, and brightness. • Temperature of a star is indicated by color, hot stars are blue & cooler stars are red. • Apparent brightness is the brightness of a star as observed from earth. • Absolute magnitude is the brightness of a star observe ...
... Classifying Stars • Stars are classified by size, temperature, and brightness. • Temperature of a star is indicated by color, hot stars are blue & cooler stars are red. • Apparent brightness is the brightness of a star as observed from earth. • Absolute magnitude is the brightness of a star observe ...
Chapter 27 Stars and Galaxies
... Absolute Magnitude Brightness from 32.6 ly Ex: If the sun was 32.6 ly away, it would be a fifth magnitude star. Its absolute magnitude = +5 Most stars are between a -5 and +15 ...
... Absolute Magnitude Brightness from 32.6 ly Ex: If the sun was 32.6 ly away, it would be a fifth magnitude star. Its absolute magnitude = +5 Most stars are between a -5 and +15 ...
The Evolution of Massive Stars
... • Pulse of neutrinos as core collapses • “Pollution” of the interstellar medium as explosion blows off the outer stellar core • Birth of the “neutron star” ...
... • Pulse of neutrinos as core collapses • “Pollution” of the interstellar medium as explosion blows off the outer stellar core • Birth of the “neutron star” ...
Astronomy 104: Homework Set 5 Due: Monday, March 16, 2015
... b) In a log-log plot like the one you produced, a straight light implies a power-law profile. Do the data for each of the density laws you plotted follow a straight line? c) Determine the slope of the line that best fits each of the two density profiles. Keeping in mind that the Bulge of our Galaxy ...
... b) In a log-log plot like the one you produced, a straight light implies a power-law profile. Do the data for each of the density laws you plotted follow a straight line? c) Determine the slope of the line that best fits each of the two density profiles. Keeping in mind that the Bulge of our Galaxy ...
Characteristics of Stars WS Questions 1-20
... do not rephrase or use complete sentences, you will automatically lose half of the points ...
... do not rephrase or use complete sentences, you will automatically lose half of the points ...
PH142 - Mohawk Valley Community College
... 3. Explain the sequence of events during a solar eclipse--partial, annular, total. 4. Demonstrate an understanding of the methods of distance measurement in astronomy such as triangulation, parallax. 5. Classify stars according to their magnitude and temperature. 6. Relate information provided by He ...
... 3. Explain the sequence of events during a solar eclipse--partial, annular, total. 4. Demonstrate an understanding of the methods of distance measurement in astronomy such as triangulation, parallax. 5. Classify stars according to their magnitude and temperature. 6. Relate information provided by He ...
Brighter than the average star?
... So why do most astronomy books denigrate our star? It is probably a result of over zealously applying the mediocrity principle. This is the philosophical idea that there is nothing special about our place in the Universe (“we live on an ordinary planet, orbiting an ordinary star in an ordinary galax ...
... So why do most astronomy books denigrate our star? It is probably a result of over zealously applying the mediocrity principle. This is the philosophical idea that there is nothing special about our place in the Universe (“we live on an ordinary planet, orbiting an ordinary star in an ordinary galax ...
Galaxies - schoolphysics
... gravity of the Earth. However if you jump up very fast - 40000 km/hour (25000 miles/hour) then you will never come down. You have reached the ESCAPE VELOCITY of the Earth Now the pull of gravity of a Black Hole is so huge that its escape velocity is as big as the speed of light. That’s why it’s blac ...
... gravity of the Earth. However if you jump up very fast - 40000 km/hour (25000 miles/hour) then you will never come down. You have reached the ESCAPE VELOCITY of the Earth Now the pull of gravity of a Black Hole is so huge that its escape velocity is as big as the speed of light. That’s why it’s blac ...
Serpens
Serpens (""the Serpent"", Greek Ὄφις) is a constellation of the northern hemisphere. One of the 48 constellations listed by the 2nd-century astronomer Ptolemy, it remains one of the 88 modern constellations defined by the International Astronomical Union. It is unique among the modern constellations in being split into two non-contiguous parts, Serpens Caput (Serpent's Head) to the west and Serpens Cauda (Serpent's Tail) to the east. Between these two halves lies the constellation of Ophiuchus, the ""Serpent-Bearer"". In figurative representations, the body of the serpent is represented as passing behind Ophiuchus between Mu Serpentis in Serpens Caput and Nu Serpentis in Serpens Cauda.The brightest star in Serpens is the red giant star Alpha Serpentis, or Unukalhai, in Serpens Caput, with an apparent magnitude of 2.63. Also located in Serpens Caput are the naked-eye globular cluster Messier 5 and the naked-eye variables R Serpentis and Tau4 Serpentis. Notable extragalactic objects include Seyfert's Sextet, one of the densest galaxy clusters known; Arp 220, the prototypical ultraluminous infrared galaxy; and Hoag's Object, the most famous of the very rare class of galaxies known as ring galaxies.Part of the Milky Way's galactic plane passes through Serpens Cauda, which is therefore rich in galactic deep-sky objects, such as the Eagle Nebula (IC 4703) and its associated star cluster Messier 16. The nebula measures 70 light-years by 50 light-years and contains the Pillars of Creation, three dust clouds that became famous for the image taken by the Hubble Space Telescope. Other striking objects include the Red Square Nebula, one of the few objects in astronomy to take on a square shape; and Westerhout 40, a massive nearby star-forming region consisting of a molecular cloud and an H II region.