COMING EVENTS The Pluto Files Volume 37 Number 03 March
... Within each chapter the observing challenges are organized by observing season (winter, spring, summer, fall). Look for the season recommendation near at the top of the page near the binding. If you start your observing session early and you stay up late enough you’ll be able to observe objects from ...
... Within each chapter the observing challenges are organized by observing season (winter, spring, summer, fall). Look for the season recommendation near at the top of the page near the binding. If you start your observing session early and you stay up late enough you’ll be able to observe objects from ...
Exercise 8
... the center of our galaxy, the Milky Way. The Milky Way, in turn, orbits the center of the Local Group, a cluster of galaxies. The Local Group orbits the center of the Virgo Supercluster, a cluster of clusters of galaxies. Classifying galaxies The Hubble Deep Field project, taken by the Hubble Wide F ...
... the center of our galaxy, the Milky Way. The Milky Way, in turn, orbits the center of the Local Group, a cluster of galaxies. The Local Group orbits the center of the Virgo Supercluster, a cluster of clusters of galaxies. Classifying galaxies The Hubble Deep Field project, taken by the Hubble Wide F ...
Pluto_Friends
... (1) A “planet” is a celestial body that (a) is in orbit around the Sun, (b) has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape, and (c) has cleared the neighbourhood around its orbit. (2) A “dwarf planet” is a cele ...
... (1) A “planet” is a celestial body that (a) is in orbit around the Sun, (b) has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape, and (c) has cleared the neighbourhood around its orbit. (2) A “dwarf planet” is a cele ...
2. Velocity dispersions of galaxies
... manifolds typically not isometric to each other. Given a Berwald space, all its tangent spaces are linearly isometric to a common Minkowski space A Finsler structure F is said to be of Berwald type if the Chern connection coefficients ijk in natural coordinates have no y dependence. A direct propos ...
... manifolds typically not isometric to each other. Given a Berwald space, all its tangent spaces are linearly isometric to a common Minkowski space A Finsler structure F is said to be of Berwald type if the Chern connection coefficients ijk in natural coordinates have no y dependence. A direct propos ...
1_Introduction
... standard candle: L = 4 π d2 F. 4) Assume far standard candle has same luminosity as the near. 5) Compute the distance to the far standard candle: ...
... standard candle: L = 4 π d2 F. 4) Assume far standard candle has same luminosity as the near. 5) Compute the distance to the far standard candle: ...
Integrative Studies 410 Our Place in the Universe
... • After correcting for absorption by dust, it is possible to plot location of O- and B- (hot young stars) which tend to be concentrated in the spiral arms • Radio frequency observations reveal the distribution of hydrogen (atomic) and molecular clouds • Evidence for ...
... • After correcting for absorption by dust, it is possible to plot location of O- and B- (hot young stars) which tend to be concentrated in the spiral arms • Radio frequency observations reveal the distribution of hydrogen (atomic) and molecular clouds • Evidence for ...
Lecture 7
... “sticky,” and the galaxies merge unless they fly past one another very fast. The disks get completely disrupted, and the stars are thrown into a spheroidal distribution. Colliding disks make spheroids. This agrees with stellar ages in the Milky Way: the old spheroid stars were made before the last b ...
... “sticky,” and the galaxies merge unless they fly past one another very fast. The disks get completely disrupted, and the stars are thrown into a spheroidal distribution. Colliding disks make spheroids. This agrees with stellar ages in the Milky Way: the old spheroid stars were made before the last b ...
Active Galactic Nuclei
... According to the Hubble Law, the space between the galaxies is constantly increasing, with Velocity = H0 D istance ...
... According to the Hubble Law, the space between the galaxies is constantly increasing, with Velocity = H0 D istance ...
Extension worksheet – Topic 6 - Cambridge Resources for the IB
... the temperature of the star (obtained form its spectrum) and the stellar type so the HR can be used to find luminosity. ...
... the temperature of the star (obtained form its spectrum) and the stellar type so the HR can be used to find luminosity. ...
Word
... The Scale of the Universe - Student Guide The rate at which our Universe is expanding is known as the Hubble Constant. The value of this constant is debated between astronomers today, but we will use a value of Ho= 71.9 km/s/Mpc (this value was obtained by the Wilkinson Microwave Anisotrophy Probe ...
... The Scale of the Universe - Student Guide The rate at which our Universe is expanding is known as the Hubble Constant. The value of this constant is debated between astronomers today, but we will use a value of Ho= 71.9 km/s/Mpc (this value was obtained by the Wilkinson Microwave Anisotrophy Probe ...
Astronomical Distance Ladder
... fairly simple using the standard candle approach. Both types of cepheid variable stars are pulsating stars whose period and luminosity are dependent on the mass of the star. Thus at specific periods every cepheid of one type has the same luminosity. The standard candles approach can be used for supe ...
... fairly simple using the standard candle approach. Both types of cepheid variable stars are pulsating stars whose period and luminosity are dependent on the mass of the star. Thus at specific periods every cepheid of one type has the same luminosity. The standard candles approach can be used for supe ...
Distance Ladder
... •Measure the distance to galaxies by various methods •Measure their velocity by Doppler shift of spectral lines •Nearby galaxies are moving towards or away from us, not very fast •Distant galaxies always moving away from us •The farther away they are, the faster they are moving away. •The universe i ...
... •Measure the distance to galaxies by various methods •Measure their velocity by Doppler shift of spectral lines •Nearby galaxies are moving towards or away from us, not very fast •Distant galaxies always moving away from us •The farther away they are, the faster they are moving away. •The universe i ...
Hubble`s Law
... EXPAND -> points move. Farther points move more, over same time -> faster! But still center seems important egoist located AT CENTER of this picture, says I’m at center of Universe, but what if GREEN? From that perspective, see life looking out from same vantage point, so slide pattern so both viewp ...
... EXPAND -> points move. Farther points move more, over same time -> faster! But still center seems important egoist located AT CENTER of this picture, says I’m at center of Universe, but what if GREEN? From that perspective, see life looking out from same vantage point, so slide pattern so both viewp ...
Chapter 31 Galaxies & the Universe
... These groups of galaxies may have from a few to hundreds of member galaxies and may range in sizes up to 30 million ly. In a cluster, most of the inner region galaxies are ellipticals. Galaxies in the outer portions are a mix of ellipticals and spirals. The galaxies often ...
... These groups of galaxies may have from a few to hundreds of member galaxies and may range in sizes up to 30 million ly. In a cluster, most of the inner region galaxies are ellipticals. Galaxies in the outer portions are a mix of ellipticals and spirals. The galaxies often ...
Chapter 19. Mapping the Universe from Herschel to Sloan
... While Cepheids are useful for getting distances to nearby galaxies it is also a painfully slow process because you need to get many images of a galaxy spread out over more than a year and discover all the Cepheids, measure their brightnesses as a function of time, etc. Fortunately, a second discover ...
... While Cepheids are useful for getting distances to nearby galaxies it is also a painfully slow process because you need to get many images of a galaxy spread out over more than a year and discover all the Cepheids, measure their brightnesses as a function of time, etc. Fortunately, a second discover ...
exploring the solar system, the galaxies, and the
... 1. What is Dr. Hubble’s greatest discovery? The Big Bang Theory _______________________________________. At the top of the page, select EXPLORE ASTRONOMY . Click on the box labeled Cosmic Collision – multimedia show. There are two videos here – play Striking Encounters first. 2. When galaxies collid ...
... 1. What is Dr. Hubble’s greatest discovery? The Big Bang Theory _______________________________________. At the top of the page, select EXPLORE ASTRONOMY . Click on the box labeled Cosmic Collision – multimedia show. There are two videos here – play Striking Encounters first. 2. When galaxies collid ...
The extragalactic universe and distance measurements
... – Supported Kant’s idea that these spiral nebulae were external galaxies. ...
... – Supported Kant’s idea that these spiral nebulae were external galaxies. ...
The James Webb Space Telescope: A Vision for the Future
... mirror to collect a lot of light. The bigger the mirror, the more light it can collect. Webb will be able to see back to a few hundred million years after the Big Bang, when the very first stars and galaxies began to form. Hubble, which sees mostly in visible light and has the largest mirror current ...
... mirror to collect a lot of light. The bigger the mirror, the more light it can collect. Webb will be able to see back to a few hundred million years after the Big Bang, when the very first stars and galaxies began to form. Hubble, which sees mostly in visible light and has the largest mirror current ...
ODU booklet 2 Teachers booklet Sept 2014 (7.5MB Word)
... Observations 1 and 2 are possible, but observation 3 is not because you cannot exceed the speed of light. ...
... Observations 1 and 2 are possible, but observation 3 is not because you cannot exceed the speed of light. ...
Document
... Some light loss when compared with refractors Dust can get onto optics due to open tube even if kept under wraps May require more care and maintenance ...
... Some light loss when compared with refractors Dust can get onto optics due to open tube even if kept under wraps May require more care and maintenance ...
5.9MB Word - Clydeview Academy
... Observations 1 and 2 are possible, but observation 3 is not because you cannot exceed the speed of light. ...
... Observations 1 and 2 are possible, but observation 3 is not because you cannot exceed the speed of light. ...
Bellringer - Madison County Schools
... (and any other object) move away from us, he concluded that the universe had to have originated from a infinitely small singularity. ...
... (and any other object) move away from us, he concluded that the universe had to have originated from a infinitely small singularity. ...
Hubble Offers a Dazzling View of Necklace Nebula
... glowing ring of gas that resembles a necklace. The bright dot in the center of the ring is actually two stars orbiting close together. One of the stars is near the end of its life and created the planetary nebula. The estimated age of the ring is around 5,000 years. The nebula is 15,000 light-years ...
... glowing ring of gas that resembles a necklace. The bright dot in the center of the ring is actually two stars orbiting close together. One of the stars is near the end of its life and created the planetary nebula. The estimated age of the ring is around 5,000 years. The nebula is 15,000 light-years ...