![M13 – The Great Hercules Cluster](http://s1.studyres.com/store/data/016563591_1-822e9c43b164db9b93d01ecd9a28d453-300x300.png)
M13 – The Great Hercules Cluster
... Techniques for Sketching the Deep Sky and An exaggerated sketch of the propeller structure in M13, drawn by Bindon Stoney in 1850. seeing his sketch of the propeller, I looked for ...
... Techniques for Sketching the Deep Sky and An exaggerated sketch of the propeller structure in M13, drawn by Bindon Stoney in 1850. seeing his sketch of the propeller, I looked for ...
April - Bristol Astronomical Society
... Due to the school holidays the first 2 meetings in April will be maintenance sessions at the observatory. there is always quite a lot of work to do in the spring as very little in the way of maintenance is carried out over the winter months. One of the main tasks is to shift all of the dead hedges t ...
... Due to the school holidays the first 2 meetings in April will be maintenance sessions at the observatory. there is always quite a lot of work to do in the spring as very little in the way of maintenance is carried out over the winter months. One of the main tasks is to shift all of the dead hedges t ...
Galaxies
... b. be formed from the collision and merger of spiral galaxies. c. evolve from a single spiral galaxy when the spiral has used up all of its gas and dust. d. become a starburst galaxy if it were to move through the hot intergalactic medium of a cluster. e. evolve from an S0 galaxy if the S0 galaxy we ...
... b. be formed from the collision and merger of spiral galaxies. c. evolve from a single spiral galaxy when the spiral has used up all of its gas and dust. d. become a starburst galaxy if it were to move through the hot intergalactic medium of a cluster. e. evolve from an S0 galaxy if the S0 galaxy we ...
ISP 205: Visions of the Universe
... Our Sun moves randomly relative to the other stars in the local Solar neighborhood… • at typical relative speeds of more than 70,000 km/hr. • but stars are so far away that we cannot easily notice their motion. ...
... Our Sun moves randomly relative to the other stars in the local Solar neighborhood… • at typical relative speeds of more than 70,000 km/hr. • but stars are so far away that we cannot easily notice their motion. ...
ATA2010
... Background to the final section …. Using dispersed star clusters for galactic archaeology: finding fossil remains of the star forming events which built up our Galaxy Galaxies like the Milky Way are believed to form by • the infall of gas which then turns gradually to stars (most of which form in t ...
... Background to the final section …. Using dispersed star clusters for galactic archaeology: finding fossil remains of the star forming events which built up our Galaxy Galaxies like the Milky Way are believed to form by • the infall of gas which then turns gradually to stars (most of which form in t ...
Article: How Big is our Universe
... Beyond our own galaxy lies a vast expanse of galaxies. The deeper we see into space, the more galaxies we discover. There are billions of galaxies, the most distant of which are so far away that the light arriving from them on Earth today set out from the galaxies billions of years ago. So we see t ...
... Beyond our own galaxy lies a vast expanse of galaxies. The deeper we see into space, the more galaxies we discover. There are billions of galaxies, the most distant of which are so far away that the light arriving from them on Earth today set out from the galaxies billions of years ago. So we see t ...
Stars and Galaxies
... Why do we use light years? We need numbers that make sense to us in relationship to objects; we scale up and use meters and kilometers for large numbers. Distances between stars and galaxies Different wavelengths of Electromagnetic spectrum are used to gain information about distances and pro ...
... Why do we use light years? We need numbers that make sense to us in relationship to objects; we scale up and use meters and kilometers for large numbers. Distances between stars and galaxies Different wavelengths of Electromagnetic spectrum are used to gain information about distances and pro ...
How Big is the Universe
... attached to a sphere around Earth. This idea held for many centuries. Galileo used his telescope, an instrument used to view distant objects. He saw there were more stars in ...
... attached to a sphere around Earth. This idea held for many centuries. Galileo used his telescope, an instrument used to view distant objects. He saw there were more stars in ...
TRANSIT
... will be visible looking like a star just below the Moon. The Pleiades will be just above the Moon. With a telescope you may be able to see that Mercury is a crescent as well as the Moon. Can you see Mercury with your naked eye? You should be able to. If the weather is kind it will be a good show. Ve ...
... will be visible looking like a star just below the Moon. The Pleiades will be just above the Moon. With a telescope you may be able to see that Mercury is a crescent as well as the Moon. Can you see Mercury with your naked eye? You should be able to. If the weather is kind it will be a good show. Ve ...
Milky Way thin disk
... Since bars are dynamical states of a disk, we do not need a separate stellar population for the bulge; the bar is part of the inner disk Many galactic astronomers still say ‘bulge’ which is confusing ...
... Since bars are dynamical states of a disk, we do not need a separate stellar population for the bulge; the bar is part of the inner disk Many galactic astronomers still say ‘bulge’ which is confusing ...
Document
... • RR Lyrae variables used like this to find our place in the Galaxy. • Distances that can be reached depend on the intrinsic brightness of the standard candle – and the limiting magnitude of your telescope ...
... • RR Lyrae variables used like this to find our place in the Galaxy. • Distances that can be reached depend on the intrinsic brightness of the standard candle – and the limiting magnitude of your telescope ...
AST1001.ch1
... Our Sun moves randomly relative to the other stars in the local Solar neighborhood… • at typical relative speeds of more than 70,000 km/hr. • but stars are so far away that we cannot easily notice their motion. ...
... Our Sun moves randomly relative to the other stars in the local Solar neighborhood… • at typical relative speeds of more than 70,000 km/hr. • but stars are so far away that we cannot easily notice their motion. ...
ISP 205: Visions of the Universe
... Our Sun moves randomly relative to the other stars in the local Solar neighborhood… • at typical relative speeds of more than 70,000 km/hr. • but stars are so far away that we cannot easily notice their motion. ...
... Our Sun moves randomly relative to the other stars in the local Solar neighborhood… • at typical relative speeds of more than 70,000 km/hr. • but stars are so far away that we cannot easily notice their motion. ...
20_Testbank
... 14) Approximately how many stars does a dwarf elliptical galaxy have? A) 1 trillion B) 100 billion C) 10 billion D) less than a billion E) less than a million Answer: D 15) Which of the following is true about irregular galaxies? A) They are composed solely of old stars. B) They generally have signi ...
... 14) Approximately how many stars does a dwarf elliptical galaxy have? A) 1 trillion B) 100 billion C) 10 billion D) less than a billion E) less than a million Answer: D 15) Which of the following is true about irregular galaxies? A) They are composed solely of old stars. B) They generally have signi ...
The universe is faster, colder, and wackier than anything we can
... How weak can gravity get? Or to rephrase the question more carefully, what is the gentlest pull that any object in the universe exerts, and yet is still able to force another body to orbit it? Many small galaxies have correspondingly weak gravity. But if two low-mass galaxies can somehow come togeth ...
... How weak can gravity get? Or to rephrase the question more carefully, what is the gentlest pull that any object in the universe exerts, and yet is still able to force another body to orbit it? Many small galaxies have correspondingly weak gravity. But if two low-mass galaxies can somehow come togeth ...
Wandering in the Redshift Desert
... COSMOS pBzKs (and along with them a much larger number of star-forming galaxies in the desert) would take about a quarter of the time we have estimated above for FORS2, i.e., some 350 VLT nights. This still looks like a lot of time, yet is somewhat more affordable than a mere FORS2 brute force effor ...
... COSMOS pBzKs (and along with them a much larger number of star-forming galaxies in the desert) would take about a quarter of the time we have estimated above for FORS2, i.e., some 350 VLT nights. This still looks like a lot of time, yet is somewhat more affordable than a mere FORS2 brute force effor ...
CHP 15
... 1. Herschel's grindstone and Kapteyn's star system were too small because a. they did not count the brightest stars. b. they did not study the southern sky. c. they did not have large enough telescopes. d. they only observed stars in the disk of the galaxy and not the halo. e. they did not know abou ...
... 1. Herschel's grindstone and Kapteyn's star system were too small because a. they did not count the brightest stars. b. they did not study the southern sky. c. they did not have large enough telescopes. d. they only observed stars in the disk of the galaxy and not the halo. e. they did not know abou ...
ROTATION CURVES OF HIGH-LUMINOSITY SPIRAL GALAXIES
... galaxies. Optical observations generally determined velocities only across the nucleus and inner regions; velocities at large nuclear dis tances were rarely obtained. Radio 21-cm line observations generally integrated all the neutral hydrogen into a single profile; all spatial information was lost. ...
... galaxies. Optical observations generally determined velocities only across the nucleus and inner regions; velocities at large nuclear dis tances were rarely obtained. Radio 21-cm line observations generally integrated all the neutral hydrogen into a single profile; all spatial information was lost. ...
Chapter 1 Our Place in the Universe
... • The Milky Way is one of about 100 billion galaxies. • 1011 stars/galaxy x 1011 galaxies = 1022 stars ...
... • The Milky Way is one of about 100 billion galaxies. • 1011 stars/galaxy x 1011 galaxies = 1022 stars ...
UNIVERSITY OF BRISTOL
... sight velocity dispersion is 700 km s-1, use the virial theorem to calculate the cluster mass. If the visible galaxies have a total luminosity of 1.3 x 1012 solar luminosities, what is the overall mass-to-light ratio. What does this tell us about the matter content of the cluster? ...
... sight velocity dispersion is 700 km s-1, use the virial theorem to calculate the cluster mass. If the visible galaxies have a total luminosity of 1.3 x 1012 solar luminosities, what is the overall mass-to-light ratio. What does this tell us about the matter content of the cluster? ...
file - University of California San Diego
... The forest, Burbidge notes, may represent light not from the quasar itself but from diffuse gas clouds that lie along our line of sight to the quasar and absorb some of its spectrum. "These gas clouds may be in a primordial region, perhaps evolving into a cluster of galaxies around the quasar," Burb ...
... The forest, Burbidge notes, may represent light not from the quasar itself but from diffuse gas clouds that lie along our line of sight to the quasar and absorb some of its spectrum. "These gas clouds may be in a primordial region, perhaps evolving into a cluster of galaxies around the quasar," Burb ...
The Interstellar Medium
... as well as the interstellar gas pressure. Magnetic field is therefore important in controlling the dynamics of both these components. While the local magnetic field could stabilize a cloud against collapse, magnetic field also allows the thermal gas in the interstellar medium to drain downward along ...
... as well as the interstellar gas pressure. Magnetic field is therefore important in controlling the dynamics of both these components. While the local magnetic field could stabilize a cloud against collapse, magnetic field also allows the thermal gas in the interstellar medium to drain downward along ...
Microsoft Word 97
... and dust as well as some old stars. The disk is slightly warped at its ends, perhaps by an interaction with our satellite galaxies, the Magellanic Clouds. Our galaxy looks like a hat with a turned down brim. 1) It is very difficult for us to tell how the material is arranged in our galaxy’s disk. 2) ...
... and dust as well as some old stars. The disk is slightly warped at its ends, perhaps by an interaction with our satellite galaxies, the Magellanic Clouds. Our galaxy looks like a hat with a turned down brim. 1) It is very difficult for us to tell how the material is arranged in our galaxy’s disk. 2) ...
The Hubble Mission - Indiana University Astronomy
... Energy's repulsive force began to overcome the attractive force of gravity over cosmic distances Supernovae measured with Hubble hint that Dark Energy's repulsive force is constant over cosmic time and so could be consistent with Einstein's original theory of gravitation If the force actually change ...
... Energy's repulsive force began to overcome the attractive force of gravity over cosmic distances Supernovae measured with Hubble hint that Dark Energy's repulsive force is constant over cosmic time and so could be consistent with Einstein's original theory of gravitation If the force actually change ...
1 Is the Binding Energy of Galaxies related to their Core
... unlikely to harbour large black holes and why dwarf galaxies, if they have to host black holes, should have observed mass to light ratios of ~100. It is by now well established that most large galaxies (spiral, elliptical, etc.) host a supermassive black hole in their centre [1]. Again AGN’s, quasar ...
... unlikely to harbour large black holes and why dwarf galaxies, if they have to host black holes, should have observed mass to light ratios of ~100. It is by now well established that most large galaxies (spiral, elliptical, etc.) host a supermassive black hole in their centre [1]. Again AGN’s, quasar ...
Galaxy Zoo
![](https://commons.wikimedia.org/wiki/Special:FilePath/Galaxyzoo.jpg?width=300)
Galaxy Zoo is a crowdsourced astronomy project which invites people to assist in the morphological classification of large numbers of galaxies. (e.g.) It is an example of citizen science as it enlists the help of members of the public to help in scientific research. There have been seven versions up to July 2014, which are outlined in this article. Galaxy Zoo is part of the Zooniverse, a group of citizen science projects.