Expanding Universe and Big Bang
... The distance of the object affects the amount of parallax. The closer the object is to the observer the greater the parallax. If the angle is measured and the distance between the two observers is known the distance to the object can be calculated using trigonometry. ...
... The distance of the object affects the amount of parallax. The closer the object is to the observer the greater the parallax. If the angle is measured and the distance between the two observers is known the distance to the object can be calculated using trigonometry. ...
Testing - Elon University
... Dark Matter: An undetected form of mass that emits little or no light but whose existence we infer from its gravitational influence Dark Energy: An unknown form of energy that seems to be the source of a repulsive force causing the expansion of the universe to accelerate ...
... Dark Matter: An undetected form of mass that emits little or no light but whose existence we infer from its gravitational influence Dark Energy: An unknown form of energy that seems to be the source of a repulsive force causing the expansion of the universe to accelerate ...
Lab 7: Galaxies
... version of an ellipse, it looks like a squashed circle. An elliptical galaxy has an ellisoidal shape, so no matter how it is oriented with respect to the Earth it appears to be an ellipse. Elliptical galaxies are designated by the letter “E” on the tuning fork. The letter is followed by a number 0 t ...
... version of an ellipse, it looks like a squashed circle. An elliptical galaxy has an ellisoidal shape, so no matter how it is oriented with respect to the Earth it appears to be an ellipse. Elliptical galaxies are designated by the letter “E” on the tuning fork. The letter is followed by a number 0 t ...
Test 2 - Constellations - ppt
... Many of the stars form specific patterns, or ________ How many named constellations are there?? ...
... Many of the stars form specific patterns, or ________ How many named constellations are there?? ...
Stellar Population Modeling of Galaxies in Nearby Groups
... galaxies were studied in details from deep images, which were obtained with large ground-based telescopes and the Hubble Space Telescope (see, for example, Holtzman et al. (2000), Han et al. (1997), Da Costa et al.(1996), Martinez-Delgado and Aparicio (1998), Monkiewicz et al. (1999)). However, ther ...
... galaxies were studied in details from deep images, which were obtained with large ground-based telescopes and the Hubble Space Telescope (see, for example, Holtzman et al. (2000), Han et al. (1997), Da Costa et al.(1996), Martinez-Delgado and Aparicio (1998), Monkiewicz et al. (1999)). However, ther ...
How Bright is that star?
... Luminosity is the amount of energy a star gives off as light. Measured in Watts or Solar Units or “Sols” However for all practical purposes Absolute magnitude and Luminosity of a star measure the same thing. Absolute Magnitude Approximate Luminosity ...
... Luminosity is the amount of energy a star gives off as light. Measured in Watts or Solar Units or “Sols” However for all practical purposes Absolute magnitude and Luminosity of a star measure the same thing. Absolute Magnitude Approximate Luminosity ...
Compa ring between Spectroscopic and Photometric Method for
... system is called a semi-detached binary system. In case when both stars fill, or even expand beyond, their Roche Lobes stars share a common atmosphere13. Such a system is called a contact binary system. In this seminar, we will only present detached binary systems. ...
... system is called a semi-detached binary system. In case when both stars fill, or even expand beyond, their Roche Lobes stars share a common atmosphere13. Such a system is called a contact binary system. In this seminar, we will only present detached binary systems. ...
The Reflector: January 2010 - Peterborough Astronomical Association
... star birthing area in Sagittarius to two double stars in Cygnus, a million stars in a ball in Hercules, and finally to the final stages of star life in M57 and M27, all in one night. It’s quite a story and you’ll meet a red giant star—Antares—along the way. Planet buffs will also be able to take in ...
... star birthing area in Sagittarius to two double stars in Cygnus, a million stars in a ball in Hercules, and finally to the final stages of star life in M57 and M27, all in one night. It’s quite a story and you’ll meet a red giant star—Antares—along the way. Planet buffs will also be able to take in ...
PowerPoint file - Adin Community Bible Church
... “The complete birth of a star has never been observed. The principles of physics demand some special conditions for star formation and also for a long time period. A cloud of hydrogen gas must be compressed to a sufficiently small size so that gravity dominates. continued ...
... “The complete birth of a star has never been observed. The principles of physics demand some special conditions for star formation and also for a long time period. A cloud of hydrogen gas must be compressed to a sufficiently small size so that gravity dominates. continued ...
MACHOs
... Instead of using the total time interval for when magnification starts/ends, we need to pick a value for magnification corresponding to a certain point on the graph. o Before, we were finding the Rm at the point when the magnification was just starting to show a change but using the value for the ...
... Instead of using the total time interval for when magnification starts/ends, we need to pick a value for magnification corresponding to a certain point on the graph. o Before, we were finding the Rm at the point when the magnification was just starting to show a change but using the value for the ...
Introduction to Galaxies - West Jefferson Local Schools
... Elliptical galaxies are affectionately called “E” galaxies. They can be extremely large and massive. This galaxy is 2 million light years across. The size of the Milky Way in comparison! ...
... Elliptical galaxies are affectionately called “E” galaxies. They can be extremely large and massive. This galaxy is 2 million light years across. The size of the Milky Way in comparison! ...
Science and the Universe - Wayne State University Physics and
... Local Group of Galaxies M31, along with our Galaxy, is part of a small cluster of over 40 galaxies which is called the Local Group At distances of about 10 to 15 million LY, one finds other small galaxy groups or clusters At about 50 million LY, one finds a very large cluster containing thousands o ...
... Local Group of Galaxies M31, along with our Galaxy, is part of a small cluster of over 40 galaxies which is called the Local Group At distances of about 10 to 15 million LY, one finds other small galaxy groups or clusters At about 50 million LY, one finds a very large cluster containing thousands o ...
Celestial Position Lines
... It is sometimes not possible to obtain the altitude of the celestial body when it is on same observer’s meridian due to cloud, environmental factors, etc. If the altitude of the celestial body can be obtained a few minutes before or after meridian passage, the Ex-Meridian method can be used to reduc ...
... It is sometimes not possible to obtain the altitude of the celestial body when it is on same observer’s meridian due to cloud, environmental factors, etc. If the altitude of the celestial body can be obtained a few minutes before or after meridian passage, the Ex-Meridian method can be used to reduc ...
PC3692: Physics of Stellar Structure (and Evolution)
... Stars in the universe are not uniformly distributed in space. They are highly clustered. It is still not completely understood how this highly clustered pattern arises. Milky Way is a typical disk galaxy (see Fig. 5). It consists a bulge and a thin disk. The disk is thin because it’s rotationally su ...
... Stars in the universe are not uniformly distributed in space. They are highly clustered. It is still not completely understood how this highly clustered pattern arises. Milky Way is a typical disk galaxy (see Fig. 5). It consists a bulge and a thin disk. The disk is thin because it’s rotationally su ...
Phase Analysis of RV Tauri and Semi-regular Variables Abstract
... RV Tauri variable stars, related classes of pulsating variable stars. The ultimate objective for our research is to determine whether the stars stellar properties such as temperature, radius, and luminosity correlate with their pulsation cycles. In order to determine this, we need to closely examine ...
... RV Tauri variable stars, related classes of pulsating variable stars. The ultimate objective for our research is to determine whether the stars stellar properties such as temperature, radius, and luminosity correlate with their pulsation cycles. In order to determine this, we need to closely examine ...
Autumn semester 2013-14 - The University of Sheffield
... (b) Briefly explain in general terms how we would expect a neutralino to manifest itself in an experiment such as ATLAS at the LHC. State what typical event energies are involved in such an observation and what type of events constitute the background. Outline why it is difficult to be sure that a p ...
... (b) Briefly explain in general terms how we would expect a neutralino to manifest itself in an experiment such as ATLAS at the LHC. State what typical event energies are involved in such an observation and what type of events constitute the background. Outline why it is difficult to be sure that a p ...
LouysLSBGalaxiesDete..
... Data set • B-images of a region of the Virgo cluster obtained with the Isaac Newton Telescope WFCS (Wild Field Camera Survey) • Analysed by Sabina Sabatini et coll. in SABATINI S.; DAVIES J.; SCARAMELLA R.; SMITH R.; ...
... Data set • B-images of a region of the Virgo cluster obtained with the Isaac Newton Telescope WFCS (Wild Field Camera Survey) • Analysed by Sabina Sabatini et coll. in SABATINI S.; DAVIES J.; SCARAMELLA R.; SMITH R.; ...
PHYSICS – Astrophysics Section I
... of the Moon. Galileo saw that the Moon was not perfect and unchanging as was the prevailing Aristotelian view, but in fact had a very rough surface. He observed the “seas” and mountains on the surface of the Moon as well as craters. These observations blatantly contradicted the Church’s Aristotelian ...
... of the Moon. Galileo saw that the Moon was not perfect and unchanging as was the prevailing Aristotelian view, but in fact had a very rough surface. He observed the “seas” and mountains on the surface of the Moon as well as craters. These observations blatantly contradicted the Church’s Aristotelian ...
stars - Iowa State University
... over iron silicates in the interstellar medium," in agreement with recent findings from NASA's comet-sampling Stardust space probe. Andersen and Höfner detailed their findings in the April issue of the journal Astronomy & Astrophysics. "The calculations needed to make sure this is right will be hard ...
... over iron silicates in the interstellar medium," in agreement with recent findings from NASA's comet-sampling Stardust space probe. Andersen and Höfner detailed their findings in the April issue of the journal Astronomy & Astrophysics. "The calculations needed to make sure this is right will be hard ...
Nebulae
... classified as nebulae, because they looked like fuzzy “blobs”. Today we know galaxies are collections of billions of stars. We will limit our nebulae to clouds of gas floating in space. ...
... classified as nebulae, because they looked like fuzzy “blobs”. Today we know galaxies are collections of billions of stars. We will limit our nebulae to clouds of gas floating in space. ...
Galaxy Notes File
... member of a small cluster called the Local Group which contains about 40 galaxies. The largest member of the Local Group is M 31, with the Milky Way coming in second in size. ...
... member of a small cluster called the Local Group which contains about 40 galaxies. The largest member of the Local Group is M 31, with the Milky Way coming in second in size. ...
presentation source
... Quasars have been observed to fluctuate in brightness with periods ranging from a few years to a few hours. Recall that this light variation places an upper limit on the size of the quasar’s energy source. If they are as distant as Hubble’s Law indicates then some mechanism must be producing energie ...
... Quasars have been observed to fluctuate in brightness with periods ranging from a few years to a few hours. Recall that this light variation places an upper limit on the size of the quasar’s energy source. If they are as distant as Hubble’s Law indicates then some mechanism must be producing energie ...
Cosmic distance ladder
The cosmic distance ladder (also known as the extragalactic distance scale) is the succession of methods by which astronomers determine the distances to celestial objects. A real direct distance measurement of an astronomical object is possible only for those objects that are ""close enough"" (within about a thousand parsecs) to Earth. The techniques for determining distances to more distant objects are all based on various measured correlations between methods that work at close distances and methods that work at larger distances. Several methods rely on a standard candle, which is an astronomical object that has a known luminosity.The ladder analogy arises because no one technique can measure distances at all ranges encountered in astronomy. Instead, one method can be used to measure nearby distances, a second can be used to measure nearby to intermediate distances, and so on. Each rung of the ladder provides information that can be used to determine the distances at the next higher rung.