Astronomy Rough Notes
... Picture/rank the size of the following objects: our Moon, Earth, Sun (or a star), our solar system, the Milky Way galaxy (our galaxy), the universe. Picture/rank the distances to the following objects: our Moon, Earth, Sun (or a star), our solar system, the Milky Way galaxy (our galaxy), the Androme ...
... Picture/rank the size of the following objects: our Moon, Earth, Sun (or a star), our solar system, the Milky Way galaxy (our galaxy), the universe. Picture/rank the distances to the following objects: our Moon, Earth, Sun (or a star), our solar system, the Milky Way galaxy (our galaxy), the Androme ...
An analogy
... – distant galaxies are younger than those used to define the Hubble Sequence – more peculiar galaxies are observed: could be due to patchy star formation (younger age) or to interactions being more frequent (denser Universe) – resolution is poor compared to local galaxies and usually limited to a fe ...
... – distant galaxies are younger than those used to define the Hubble Sequence – more peculiar galaxies are observed: could be due to patchy star formation (younger age) or to interactions being more frequent (denser Universe) – resolution is poor compared to local galaxies and usually limited to a fe ...
Chapter 12 - Indiana State University
... – Superimposed on this orbital motion are small random motions of about 20 km/sec – In addition to their motion through space, stars spin on their axes and this spin can be measured using the Doppler shift technique – young stars are found to rotate faster than old stars ...
... – Superimposed on this orbital motion are small random motions of about 20 km/sec – In addition to their motion through space, stars spin on their axes and this spin can be measured using the Doppler shift technique – young stars are found to rotate faster than old stars ...
Astronomy
... Astrochemistry is the study of the chemicals found in outer space, usually in molecular gas clouds, and their formation, interaction and destruction. As such, it represents an overlap of the disciplines of astronomy and ...
... Astrochemistry is the study of the chemicals found in outer space, usually in molecular gas clouds, and their formation, interaction and destruction. As such, it represents an overlap of the disciplines of astronomy and ...
Lesson Plans for Astronomy for the week of: 01/06/14
... one either in class of for homework. To check our understanding we will answer EOCQ12: 1-6. 3mQ Astronomy Monday 03/16/15 1. What two bits of data are you collecting for each hall in this lab? 2. What is the most important thing you must do in order to get the best parallax angle? 3. What trig funct ...
... one either in class of for homework. To check our understanding we will answer EOCQ12: 1-6. 3mQ Astronomy Monday 03/16/15 1. What two bits of data are you collecting for each hall in this lab? 2. What is the most important thing you must do in order to get the best parallax angle? 3. What trig funct ...
Homework 1 - Concord University
... d. [5 points]. Find the light travel time to the nearest star, α Centauri, located at 1.3 parsec (1 parsec = 3.1×1018 cm). Imagine there are space aliens on αCen, then (i) sketch one, and (ii) comment on what they see going on here when they look at us with high-power telescopes and/or tune in to ou ...
... d. [5 points]. Find the light travel time to the nearest star, α Centauri, located at 1.3 parsec (1 parsec = 3.1×1018 cm). Imagine there are space aliens on αCen, then (i) sketch one, and (ii) comment on what they see going on here when they look at us with high-power telescopes and/or tune in to ou ...
AN OPTICAL INFRARED ASTROMETRIC - Cosmos
... the Hipparcos and Tycho Catalogues are now available as a result of the combined eorts of so many persons involved in the Hipparcos project. The direct determination of trigonometric parallaxes of about 120 000 stars of various kinds is epoch-making with its precision of about 1 milliarcsec. A larg ...
... the Hipparcos and Tycho Catalogues are now available as a result of the combined eorts of so many persons involved in the Hipparcos project. The direct determination of trigonometric parallaxes of about 120 000 stars of various kinds is epoch-making with its precision of about 1 milliarcsec. A larg ...
Comet Lulin - indstate.edu
... distance of about 61 million kilometers. By now, Comet Lulin is predicted to be 5th magnitude, which means it could be visible to the naked eye in rural locations. The most interesting thing about closest approach, however, is the comet's ridiculously high apparent velocity. Comet Lulin will be spee ...
... distance of about 61 million kilometers. By now, Comet Lulin is predicted to be 5th magnitude, which means it could be visible to the naked eye in rural locations. The most interesting thing about closest approach, however, is the comet's ridiculously high apparent velocity. Comet Lulin will be spee ...
Parallax
... However, he didn’t know that, so he held off publishing his findings until he had more data. In 1837, Struve announced that he had measured the distance to Vega. He reported a parallax angle of 0.125 arc seconds. Bessel was working on measuring the parallax angle for 61 Cygni. He measured a parallax ...
... However, he didn’t know that, so he held off publishing his findings until he had more data. In 1837, Struve announced that he had measured the distance to Vega. He reported a parallax angle of 0.125 arc seconds. Bessel was working on measuring the parallax angle for 61 Cygni. He measured a parallax ...
Tyler Gray - Angelfire
... visible in many photos of M31, including the one in this page. They are only the brightest of a "swarm" of smaller companions which surround the Andromeda Galaxy, and form a subgroup of the Local Group. At the time of this writing (October 1999), at least 10 of them are known: Besides M32 and M110 t ...
... visible in many photos of M31, including the one in this page. They are only the brightest of a "swarm" of smaller companions which surround the Andromeda Galaxy, and form a subgroup of the Local Group. At the time of this writing (October 1999), at least 10 of them are known: Besides M32 and M110 t ...
Link to the students power point presentation
... What are quasars ? • The first quasar (3C273) was discovered in 1963 • Quasars are small, compact, powerful and extremely remote objects • Observed luminosity is approximately 10 - 1000 times that of a normal galaxy ...
... What are quasars ? • The first quasar (3C273) was discovered in 1963 • Quasars are small, compact, powerful and extremely remote objects • Observed luminosity is approximately 10 - 1000 times that of a normal galaxy ...
The Milky Way Galaxy 1 Introduction 2 Globular Clusters and
... The Milky Way galaxy is our home in the universe, an island of stars among countless billions of other islands of stars in the vastness of space. Looking at diagrams of its structure, with its graceful spiral arms, one is struck by its beauty. Why does it have spiral arms, and what is their signific ...
... The Milky Way galaxy is our home in the universe, an island of stars among countless billions of other islands of stars in the vastness of space. Looking at diagrams of its structure, with its graceful spiral arms, one is struck by its beauty. Why does it have spiral arms, and what is their signific ...
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 ...
Tom Maccarone (Texas Tech University)
... May have important implications for recent suggestion that bimodality of cluster colors is an artifact of color-metallicity relation, rather than real evidence of bimodality Only seen in NGC 1399, so may be related to location deep in a central cluster galaxy (Kundu et ...
... May have important implications for recent suggestion that bimodality of cluster colors is an artifact of color-metallicity relation, rather than real evidence of bimodality Only seen in NGC 1399, so may be related to location deep in a central cluster galaxy (Kundu et ...
Unit 3 - Section 9.7 2011 Universe Origin
... shifting is known as a Doppler shift. By measuring the shift in wavelength, the speed of movement away (red) or towards (blue) Earth can be calculated. When a galaxy is rotating, the starlight from stars on the side of the galaxy that is moving towards are blue-shifted (…think opposite of Red Shift) ...
... shifting is known as a Doppler shift. By measuring the shift in wavelength, the speed of movement away (red) or towards (blue) Earth can be calculated. When a galaxy is rotating, the starlight from stars on the side of the galaxy that is moving towards are blue-shifted (…think opposite of Red Shift) ...
Parallax — How Far Is It?
... c. Now pivot the Target Arrow until it is in line with both the Eye Arrow and the colored target object, whose distance you are trying to measure. Again emphasize that all three elements must line up. Be sure you are holding the scale piece down firmly so that it does not move. Only the Pointer Piec ...
... c. Now pivot the Target Arrow until it is in line with both the Eye Arrow and the colored target object, whose distance you are trying to measure. Again emphasize that all three elements must line up. Be sure you are holding the scale piece down firmly so that it does not move. Only the Pointer Piec ...
universe - Northwest ISD Moodle
... 10. In the electromagnetic spectrum, the longer wavelengths of visible light are the ____ and ____, while the shorter include the _____ and _____. 11. Using the above information, what color would you expect the closest galactic objects (galaxies) to be when viewed through a telescope? 12. On the EM ...
... 10. In the electromagnetic spectrum, the longer wavelengths of visible light are the ____ and ____, while the shorter include the _____ and _____. 11. Using the above information, what color would you expect the closest galactic objects (galaxies) to be when viewed through a telescope? 12. On the EM ...
Exercise G1: Our Home Galaxy, the Milky Way
... Question 5: The Solar System is embedded within the galaxy. Why does the Milky Way appear as a narrow band of light instead of appearing as faint but evenly distributed light across the entire sky? a. The galaxy is flattened and we view it edge on, from its interior. b. We can only see stars in ...
... Question 5: The Solar System is embedded within the galaxy. Why does the Milky Way appear as a narrow band of light instead of appearing as faint but evenly distributed light across the entire sky? a. The galaxy is flattened and we view it edge on, from its interior. b. We can only see stars in ...
Stars, Galaxies, and the Universe Section 1 Section 1
... • Stars vary in size and mass. • Stars such as the sun are considered medium-sized stars. The sun has a diameter of 1,390,000 km. • Most of the stars you can see in the night sky are medium-sized stars. • Many stars also have about the same mass as the sun, however some stars may be more or less mas ...
... • Stars vary in size and mass. • Stars such as the sun are considered medium-sized stars. The sun has a diameter of 1,390,000 km. • Most of the stars you can see in the night sky are medium-sized stars. • Many stars also have about the same mass as the sun, however some stars may be more or less mas ...
The Dynamics of the Galaxies in the Local Group
... • Necessary to determine the complete 3D velocity of an object • “Easy” to measure for stars close to the Sun • Very small and difficult to measure for distant objects • Never measured for Andromeda (tried since 1898) • Now finally measured with Hubble Space Telescope ...
... • Necessary to determine the complete 3D velocity of an object • “Easy” to measure for stars close to the Sun • Very small and difficult to measure for distant objects • Never measured for Andromeda (tried since 1898) • Now finally measured with Hubble Space Telescope ...
Slide 1
... A long time ago in a galaxy far far away Darth Vader is observing two different stars. Both stars are equally bright as observed from his location, but Star A is 10 pc away and star B is 20 pc away. Which star is more luminous? By how much? ...
... A long time ago in a galaxy far far away Darth Vader is observing two different stars. Both stars are equally bright as observed from his location, but Star A is 10 pc away and star B is 20 pc away. Which star is more luminous? By how much? ...
Module 3: Exploring Other Stars Assignment 5: Estimating
... Module 3: Exploring Other Stars Assignment 5: Estimating Temperatures of Stars from their Spectral Energy Distribution In this module we will further explore techniques astronomers use to learn about stellar temperatures from the spectrum of the star. Look at the spectra below, (also found at the NO ...
... Module 3: Exploring Other Stars Assignment 5: Estimating Temperatures of Stars from their Spectral Energy Distribution In this module we will further explore techniques astronomers use to learn about stellar temperatures from the spectrum of the star. Look at the spectra below, (also found at the NO ...
Stars, Galaxies, and the Universe Section 1 Distances to Stars
... • Stars vary in size and mass. • Stars such as the sun are considered medium-sized stars. The sun has a diameter of 1,390,000 km. • Most of the stars you can see in the night sky are medium-sized stars. • Many stars also have about the same mass as the sun, however some stars may be more or less mas ...
... • Stars vary in size and mass. • Stars such as the sun are considered medium-sized stars. The sun has a diameter of 1,390,000 km. • Most of the stars you can see in the night sky are medium-sized stars. • Many stars also have about the same mass as the sun, however some stars may be more or less mas ...
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.