dtu7ech13 - Fort Thomas Independent Schools
... billions of years. What is a nova? A nova is a relatively gentle explosion of hydrogen gas on the surface of a white dwarf in a binary star system. What are the origins of the carbon, silicon, oxygen, iron, uranium, and other heavy elements on Earth? These elements are created during stellar evoluti ...
... billions of years. What is a nova? A nova is a relatively gentle explosion of hydrogen gas on the surface of a white dwarf in a binary star system. What are the origins of the carbon, silicon, oxygen, iron, uranium, and other heavy elements on Earth? These elements are created during stellar evoluti ...
The Sizes of Stars
... absorbs and scatters light. Dust in space can be seen in silhouette, as it blocks out the light from more distant stars. ...
... absorbs and scatters light. Dust in space can be seen in silhouette, as it blocks out the light from more distant stars. ...
Stellar Evolution
... per cubic centimeter (in English about 30 billion trillion). Most solids and liquids have similar numbers. At the earth’s surface our atmosphere has about 2.4 x 1019 molecules per cubic centimeter (about a thousand times less dense than liquid water). In most of interstellar space, there is about 1 ...
... per cubic centimeter (in English about 30 billion trillion). Most solids and liquids have similar numbers. At the earth’s surface our atmosphere has about 2.4 x 1019 molecules per cubic centimeter (about a thousand times less dense than liquid water). In most of interstellar space, there is about 1 ...
Luminosity
... The Nearest Stars • If the sun were a golf ball the nearest star would be in Comox • αCentauri is nearest star at 4light years then Barnard’s star ...
... The Nearest Stars • If the sun were a golf ball the nearest star would be in Comox • αCentauri is nearest star at 4light years then Barnard’s star ...
Characteristics of Stars
... 22. An intermediate mass star, like the Sun lives for about_10 billion_ years. 23.When it runs out of the fuel, the core will contract and the outer layers of the star will expand to form a _red giant 24. The outer layers of the star will peel away forming a -planetary nebula . Examples of other sta ...
... 22. An intermediate mass star, like the Sun lives for about_10 billion_ years. 23.When it runs out of the fuel, the core will contract and the outer layers of the star will expand to form a _red giant 24. The outer layers of the star will peel away forming a -planetary nebula . Examples of other sta ...
Thought Question
... How would the absolute magnitude of Alpha Centauri change if it were three times farther away? A. It would be +3 magnitudes fainter B. It would be -3 magnitudes brighter C. It would stay the same (its absolute magnitude is an intrinsic property of a star) ...
... How would the absolute magnitude of Alpha Centauri change if it were three times farther away? A. It would be +3 magnitudes fainter B. It would be -3 magnitudes brighter C. It would stay the same (its absolute magnitude is an intrinsic property of a star) ...
ASTR101 Unit 10 Assessment Answer Key 1. Mass, luminosity, size
... from about 60 solar masses to about 1/12 solar mass, in luminosity from about 1,000,000 to 1/10,000 solar luminosities, in radius from about 1,000 to 1/10 solar radii, in surface temperature from about 35,000 to 3,000 K, and in age, from about 13 billion years to stars that are just now being born. ...
... from about 60 solar masses to about 1/12 solar mass, in luminosity from about 1,000,000 to 1/10,000 solar luminosities, in radius from about 1,000 to 1/10 solar radii, in surface temperature from about 35,000 to 3,000 K, and in age, from about 13 billion years to stars that are just now being born. ...
09astrophysics_2007Nov
... Formula: Distance (pc)=1/parallax Limiting Optical resolution of telescope (due to wave nature of light) limits smallest parallax we can measure ...
... Formula: Distance (pc)=1/parallax Limiting Optical resolution of telescope (due to wave nature of light) limits smallest parallax we can measure ...
Life Cycle of a Star
... medium mass star from red giant to white dwarf (stage 13). Eventually, the star will cool down, radiating heat into space, fading into black lumps of carbon. This is when the star becomes a black dwarf (stage 14) . ...
... medium mass star from red giant to white dwarf (stage 13). Eventually, the star will cool down, radiating heat into space, fading into black lumps of carbon. This is when the star becomes a black dwarf (stage 14) . ...
Solution Key
... This is a reasonable value (which is good since the data was taken from a real paper in the Astrophysical Journal). Globular clusters hang out surrounding the center of our galaxy, outside the galactic plane. We are around 8.5 kpc from the galactic center, so it makes sense that a globular cluster s ...
... This is a reasonable value (which is good since the data was taken from a real paper in the Astrophysical Journal). Globular clusters hang out surrounding the center of our galaxy, outside the galactic plane. We are around 8.5 kpc from the galactic center, so it makes sense that a globular cluster s ...
Teacher Subject Title Concept Context Tek/SE Verb
... Engage – Stars in the Night Sky. Construct a KLEW Chart in the class science notebook: What do you see when you look up at the sky? Does the sky look the same during the day as it does at night? Other than the Moon, what do we see in the night sky? What do you know about stars? Misconceptions: stude ...
... Engage – Stars in the Night Sky. Construct a KLEW Chart in the class science notebook: What do you see when you look up at the sky? Does the sky look the same during the day as it does at night? Other than the Moon, what do we see in the night sky? What do you know about stars? Misconceptions: stude ...
The Northern sky - Visit Isle of Man
... The Plough, also known as the Big Dipper, is a collection of seven stars that has been recognised as a distinct grouping in many cultures for thousands of years. The stars that make up the Plough are the seven brightest stars of the Ursa Major constellation. In the days before we had compasses to na ...
... The Plough, also known as the Big Dipper, is a collection of seven stars that has been recognised as a distinct grouping in many cultures for thousands of years. The stars that make up the Plough are the seven brightest stars of the Ursa Major constellation. In the days before we had compasses to na ...
Binary Star Systems - d_smith.lhseducators.com
... • An eclipsing binary system is a special type of spectroscopic binary, where the orbit of the two stars is edge-on to our line of sight. • We periodically see one star pass in front of or eclipse the other star. When this happens the total amount of light that we receive from the pair dims for a fe ...
... • An eclipsing binary system is a special type of spectroscopic binary, where the orbit of the two stars is edge-on to our line of sight. • We periodically see one star pass in front of or eclipse the other star. When this happens the total amount of light that we receive from the pair dims for a fe ...
Reach_for_the_stars_final_questions.doc
... 6. Antares emits a large portion of its energy in what non-visible wavelength? (1 pt) _____________________________________________________________________________________________________ 7. White dwarfs can go supernova when they approach a certain mass. What is the name of this “critical mass”? (1 ...
... 6. Antares emits a large portion of its energy in what non-visible wavelength? (1 pt) _____________________________________________________________________________________________________ 7. White dwarfs can go supernova when they approach a certain mass. What is the name of this “critical mass”? (1 ...
Due: January 14, 2014 Name: White dwarfs are “has been
... How does the temperature of an interstellar cloud affect its ability to form stars? a. Higher temperatures inhibit star formation. b. Star formation is independent of the temperature of the cloud. c. Higher temperatures help star formation. d. Star formation is so complicated that it is not possible ...
... How does the temperature of an interstellar cloud affect its ability to form stars? a. Higher temperatures inhibit star formation. b. Star formation is independent of the temperature of the cloud. c. Higher temperatures help star formation. d. Star formation is so complicated that it is not possible ...
Hinsdale Astro TEST
... 14. Is this a young star or an old star? Image H 15. Give the proper name of this substellar brown dwarf. 16. What type of radiation does this type of object mainly emit? ...
... 14. Is this a young star or an old star? Image H 15. Give the proper name of this substellar brown dwarf. 16. What type of radiation does this type of object mainly emit? ...
Measuring the Properties of Stars
... the separation between the primary and secondary bodies, and the calculation of the period of revolution of the secondary body about the primary body can be made. Actually, this equation can determine the total mass for any system based on knowledge of the period of some revolving object about some ...
... the separation between the primary and secondary bodies, and the calculation of the period of revolution of the secondary body about the primary body can be made. Actually, this equation can determine the total mass for any system based on knowledge of the period of some revolving object about some ...
Astronomy 20 Homework # 5 1.
... (a) Derive a formula for the b.h. luminosity as a function of its mass, assuming that its e ective area is 4RS2 , where RS is the Schwarzschild radius. (b) By setting L = c2 dM=dt, derive and solve the di erential equation for the evaporation time of a black hole with an initial mass of M0 . (c) E ...
... (a) Derive a formula for the b.h. luminosity as a function of its mass, assuming that its e ective area is 4RS2 , where RS is the Schwarzschild radius. (b) By setting L = c2 dM=dt, derive and solve the di erential equation for the evaporation time of a black hole with an initial mass of M0 . (c) E ...
Russell County Schools Non-Traditional Instructional Expectations
... process stops here, and we have a neutron star. But if the original star was more massive than a few solar masses, even the strong nuclear forces cannot resist the gravitational orunch. The neutrons are forced into one another to form heavier hadrons and these in turn coalesce to form heavier entiti ...
... process stops here, and we have a neutron star. But if the original star was more massive than a few solar masses, even the strong nuclear forces cannot resist the gravitational orunch. The neutrons are forced into one another to form heavier hadrons and these in turn coalesce to form heavier entiti ...
the california planet survey. i. four new giant exoplanets
... * The host star, HD 13931, is also similar to the Sun in mass (M= 1.02 M⊙) and metallicity. HD 13931 b is one of only four known RV-detected planets with orbital periods longer than 10 yr. The other such planets are all in multi-planet systems. GJ 179 b * Is a Jovian-mass (M sin i = 0.82 MJup ) plan ...
... * The host star, HD 13931, is also similar to the Sun in mass (M= 1.02 M⊙) and metallicity. HD 13931 b is one of only four known RV-detected planets with orbital periods longer than 10 yr. The other such planets are all in multi-planet systems. GJ 179 b * Is a Jovian-mass (M sin i = 0.82 MJup ) plan ...
Stellar Evolution Before…..During……and After…. The Main
... • The length of time a star spends fusing hydrogen into helium is called its main sequence lifetime ...
... • The length of time a star spends fusing hydrogen into helium is called its main sequence lifetime ...
W > 1 - The Open University
... ds = double star. ms = multiple star. gc = globular cluster. oc = open cluster. pn = planetary nebula. en = emission nebula. rn = reflection nebula. sg = spiral galaxy. eg = elliptical galaxy. lg = lenticular galaxy. ir = irregular galaxy. pg = peculiar galaxy. snr = super nova remnant. ly = light y ...
... ds = double star. ms = multiple star. gc = globular cluster. oc = open cluster. pn = planetary nebula. en = emission nebula. rn = reflection nebula. sg = spiral galaxy. eg = elliptical galaxy. lg = lenticular galaxy. ir = irregular galaxy. pg = peculiar galaxy. snr = super nova remnant. ly = light y ...
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.