Document
... • A computer program that simulates the vision of the sky during day and night Things to observe: • Position on Earth: observe how the view of sky changes as you move E,W, N,S • Note the distribution of sunlight on Earth! • Rotation is around Polaris which is not in zenith ...
... • A computer program that simulates the vision of the sky during day and night Things to observe: • Position on Earth: observe how the view of sky changes as you move E,W, N,S • Note the distribution of sunlight on Earth! • Rotation is around Polaris which is not in zenith ...
Lecture 19 Review
... to make a heavier element. At this point gravitational collapse occurs followed by a catastrophic rebound. A fast neutron process produces heavy elements all the way up to Plutonium. There is a strong neutron burst and a supernova explosion. For a few days the supernova has a luminosity L = 10 billi ...
... to make a heavier element. At this point gravitational collapse occurs followed by a catastrophic rebound. A fast neutron process produces heavy elements all the way up to Plutonium. There is a strong neutron burst and a supernova explosion. For a few days the supernova has a luminosity L = 10 billi ...
PDF Version
... brightness that we can see ourselves, is equal to the intrinsic brightness divided by the square of the distance from us to the star. Astronomers used Cepheid variables in a nearby galaxy, which are all about the same distance from us, to find the correlation between the period and the intrinsic bri ...
... brightness that we can see ourselves, is equal to the intrinsic brightness divided by the square of the distance from us to the star. Astronomers used Cepheid variables in a nearby galaxy, which are all about the same distance from us, to find the correlation between the period and the intrinsic bri ...
Part 2 - MGNet
... – Usually either high-mass young or low mass – In Massive star accretion onto a white dwarf • Called cataclysmic variables or dwarf novae ...
... – Usually either high-mass young or low mass – In Massive star accretion onto a white dwarf • Called cataclysmic variables or dwarf novae ...
Physics 1025: Lecture 17 Sun (cont.), Stellar Distances, Parallax
... astronomical questions is the distance to the stars; every class from now on will introduce at least one means for this determination – astronomers are very clever in finding indirect means, since there is only one direct method and the stars are very far away. Parallax is the only direct way to mea ...
... astronomical questions is the distance to the stars; every class from now on will introduce at least one means for this determination – astronomers are very clever in finding indirect means, since there is only one direct method and the stars are very far away. Parallax is the only direct way to mea ...
Exam #2 Solutions
... The cooler giant stars are mostly K and M giants with temperatures around 5,000 K to 3,000K and luminosities between 50 and 5,000 solar luminosities. 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 cooler giant stars are mostly K and M giants with temperatures around 5,000 K to 3,000K and luminosities between 50 and 5,000 solar luminosities. 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 ...
PPV_hd169142
... Time. Apache Point Observatory is operated by the Astrophysical Research Consortium. ...
... Time. Apache Point Observatory is operated by the Astrophysical Research Consortium. ...
doc - Eu-Hou
... realize something: the furthest ones appear less bright than expected! At the same time, the two teams realized that only a Universe in accelerated expansion can explain this effect, and published their results in scientific papers. Their discovery implied that the Universe was filled by an energy t ...
... realize something: the furthest ones appear less bright than expected! At the same time, the two teams realized that only a Universe in accelerated expansion can explain this effect, and published their results in scientific papers. Their discovery implied that the Universe was filled by an energy t ...
How Far To That Star?
... The Parallax Method uses the change in the direction to the star as the Earth orbits to find the distance to a relatively nearby star. (less than 250 parsecs, or 815 LY) It uses Triangulation to find the distance. The Standard Candle Method compares Apparent magnitude to Absolute Magnitude to find t ...
... The Parallax Method uses the change in the direction to the star as the Earth orbits to find the distance to a relatively nearby star. (less than 250 parsecs, or 815 LY) It uses Triangulation to find the distance. The Standard Candle Method compares Apparent magnitude to Absolute Magnitude to find t ...
Problem Set 04
... to the intense heat generated by nuclear fusion reactions taking place in the star core. As stars age they consume their fuel and the fusion reactions slow down. This can lead to a gravitational collapse of the star. In extreme cases the unbalanced gravitational force is so large that even the atoms ...
... to the intense heat generated by nuclear fusion reactions taking place in the star core. As stars age they consume their fuel and the fusion reactions slow down. This can lead to a gravitational collapse of the star. In extreme cases the unbalanced gravitational force is so large that even the atoms ...
Grade 9 Academic Science – Unit 3 Space
... This is one of the basic problems in trigonometry: Determining the distance of some far away point C given the direction that C appears from two ends of a baseline AB (see illustration). The problem is simplified by three ideas. 1. The baseline is perpendicular (i.e., 90O) to a line draw from the mi ...
... This is one of the basic problems in trigonometry: Determining the distance of some far away point C given the direction that C appears from two ends of a baseline AB (see illustration). The problem is simplified by three ideas. 1. The baseline is perpendicular (i.e., 90O) to a line draw from the mi ...
absolute magnitude
... – If a star is actually closer than 10pc, its absolute magnitude will be a bigger number, i.e. it is intrinsically dimmer than it appears – If a star is farther than 10pc, its absolute magnitude will be a smaller number, i.e. it is intrinsically brighter than it appears ...
... – If a star is actually closer than 10pc, its absolute magnitude will be a bigger number, i.e. it is intrinsically dimmer than it appears – If a star is farther than 10pc, its absolute magnitude will be a smaller number, i.e. it is intrinsically brighter than it appears ...
Unit 3 - Section 9.1 2011 Distances in Space
... This is one of the basic problems in trigonometry: Determining the distance of some far away point C given the direction that C appears from two ends of a baseline AB (see illustration). The problem is simplified by three ideas. 1. The baseline is perpendicular (i.e., 90O) to a line draw from the mi ...
... This is one of the basic problems in trigonometry: Determining the distance of some far away point C given the direction that C appears from two ends of a baseline AB (see illustration). The problem is simplified by three ideas. 1. The baseline is perpendicular (i.e., 90O) to a line draw from the mi ...
Astronomy Teaching that Focuses on Learning Subtitled
... • The North Star is the brightest star in the sky • Astronauts on the Space Shuttle float because there is no gravity in space • The Space Shuttle goes to the Moon every week • Black holes fly around and vacuum up stars • The Solar System contains hundreds of stars • The Big Bang was an organization ...
... • The North Star is the brightest star in the sky • Astronauts on the Space Shuttle float because there is no gravity in space • The Space Shuttle goes to the Moon every week • Black holes fly around and vacuum up stars • The Solar System contains hundreds of stars • The Big Bang was an organization ...
Word - El Camino College
... image). The planet has about 5 times Jupiter’s mass, well within the range of being a planet and way too low to be even a brown dwarf, let alone a star. It orbits the star at about 1.5 times the distance Pluto orbits from the Sun. The two are close by as these things go: just 70 parsecs (230 light y ...
... image). The planet has about 5 times Jupiter’s mass, well within the range of being a planet and way too low to be even a brown dwarf, let alone a star. It orbits the star at about 1.5 times the distance Pluto orbits from the Sun. The two are close by as these things go: just 70 parsecs (230 light y ...
Earth_Universe04
... • Pea size sample • Weighs 100 million tons • Same density as an atomic nucleus ...
... • Pea size sample • Weighs 100 million tons • Same density as an atomic nucleus ...
(as Main Sequence Stars)?
... temperature from spectrum (black-body curve or spectral lines), then find surface area, then find radius (sphere surface area is 4 p R2) ...
... temperature from spectrum (black-body curve or spectral lines), then find surface area, then find radius (sphere surface area is 4 p R2) ...
Lecture 5: Light as a tool
... 1) Why does our sky appear to be mostly blue, and not violet, at mid-day? 2) What color would our sky be if atmospheric particles were slightly larger? 3) Why is the sky black on the moon? ...
... 1) Why does our sky appear to be mostly blue, and not violet, at mid-day? 2) What color would our sky be if atmospheric particles were slightly larger? 3) Why is the sky black on the moon? ...
PRE-LAB
... 3) Explain the difference between Zenith and Polaris. Under which conditions are they the same? ...
... 3) Explain the difference between Zenith and Polaris. Under which conditions are they the same? ...
File
... Atlanta has a latitude of about 33 north degrees. The star Polaris is very close to the Celestial North Pole. What is the altitude of Polaris when viewed from Atlanta? a) 33 degrees b) 45 degrees c) 57 degrees d) 90 degrees ...
... Atlanta has a latitude of about 33 north degrees. The star Polaris is very close to the Celestial North Pole. What is the altitude of Polaris when viewed from Atlanta? a) 33 degrees b) 45 degrees c) 57 degrees d) 90 degrees ...
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.