The Sky is Our Laboratory
... • = 0.02(nm) / D(cm) • This also depends on the type of light the telescope detects (the wavelength ) • On the ground, the limitation is due to the `blurring’ of our own atmosphere (called `seeing’). Typical values are around 0.5-1 arcseconds, but it really depends on the atmopheric conditions. ...
... • = 0.02(nm) / D(cm) • This also depends on the type of light the telescope detects (the wavelength ) • On the ground, the limitation is due to the `blurring’ of our own atmosphere (called `seeing’). Typical values are around 0.5-1 arcseconds, but it really depends on the atmopheric conditions. ...
School Supplies - Rowan County Schools
... According to Hubble’s Law, galaxies are moving _____ from one another. ...
... According to Hubble’s Law, galaxies are moving _____ from one another. ...
Physics 127 Descriptive Astronomy Homework #20 Key
... 14-3. How did Edwin Hubble prove that the Andromeda “Nebula” is not a nebula within our Milky Way Galaxy? Hubble was able to detect Cepheid variable stars within that “Nebula.” Then by observing their light curves and using the known period- luminosity relation for Cepheids, he obtained and compared ...
... 14-3. How did Edwin Hubble prove that the Andromeda “Nebula” is not a nebula within our Milky Way Galaxy? Hubble was able to detect Cepheid variable stars within that “Nebula.” Then by observing their light curves and using the known period- luminosity relation for Cepheids, he obtained and compared ...
Astronomy review - Petal School District
... Telescopes collect and focus different types of electromagnetic radiation, including visible light. Optical telescopes are used to see distant or faint objects by magnifying the amount of light they emit. O ...
... Telescopes collect and focus different types of electromagnetic radiation, including visible light. Optical telescopes are used to see distant or faint objects by magnifying the amount of light they emit. O ...
Hubble Telescope Pictures
... The Sombrero Galaxy - 28 million light years from Earth - was voted best picture taken by the Hubble telescope. The dimensions of the galaxy, officially called M104, are as spectacular as its appearance. It has 800 billion suns and is 50,000 light years across. ...
... The Sombrero Galaxy - 28 million light years from Earth - was voted best picture taken by the Hubble telescope. The dimensions of the galaxy, officially called M104, are as spectacular as its appearance. It has 800 billion suns and is 50,000 light years across. ...
As far as - Sangeeta Malhotra
... by Edwin Hubble. Astronomers determine distance by comparing redshifts of the same spectral lines in nearby and distant galaxies. It’s fitting, then, that we’re able to measure the distances of some of the faintest and farthest galaxies using the telescope named for Hubble. Why is the Hubble Space T ...
... by Edwin Hubble. Astronomers determine distance by comparing redshifts of the same spectral lines in nearby and distant galaxies. It’s fitting, then, that we’re able to measure the distances of some of the faintest and farthest galaxies using the telescope named for Hubble. Why is the Hubble Space T ...
ppt
... millions of times more massive than Sun • Starlight warms dust grains to 10-90˚K, which then emits radiation at λ = 30-300 μm (far infra red, Wien’s law) • At near infra red λ, see cool stars (red giants) deep within Milky Way ...
... millions of times more massive than Sun • Starlight warms dust grains to 10-90˚K, which then emits radiation at λ = 30-300 μm (far infra red, Wien’s law) • At near infra red λ, see cool stars (red giants) deep within Milky Way ...
Scientific Results Summary
... most heavy element-deficient star ever found. The star had the lowest iron abundance ever seen, about 1/250,000 of the Sun. The significance of metalpoor stars is that they typically formed when their parent galaxy was young, and the elemental abundance pattern of the star provides an understanding ...
... most heavy element-deficient star ever found. The star had the lowest iron abundance ever seen, about 1/250,000 of the Sun. The significance of metalpoor stars is that they typically formed when their parent galaxy was young, and the elemental abundance pattern of the star provides an understanding ...
File
... 15) What is an H-R Diagram. (be able to interpret an H-R diagram) 16) List in order the colors of stars from hottest to coolest. 17) What is a binary star system? ...
... 15) What is an H-R Diagram. (be able to interpret an H-R diagram) 16) List in order the colors of stars from hottest to coolest. 17) What is a binary star system? ...
Astronomy PowerPoint - Petal School District
... large stars. Can be seen without a telescope. Neutron star: extremely small, dense leftovers from a supernova supernovae shrink into neutron stars ...
... large stars. Can be seen without a telescope. Neutron star: extremely small, dense leftovers from a supernova supernovae shrink into neutron stars ...
doc - IAC
... Massive stars are much heavier than the Sun. They can be up to 10 or 100 times more massive. They stand out because of their high luminosity. These stars can become a million times brighter than the Sun. Their masses can be measured dynamically, in the same way as planetary masses are measured. The ...
... Massive stars are much heavier than the Sun. They can be up to 10 or 100 times more massive. They stand out because of their high luminosity. These stars can become a million times brighter than the Sun. Their masses can be measured dynamically, in the same way as planetary masses are measured. The ...
Astronomy Unit 4 Galaxies
... around the center. 17. These are used to “see” through the gas and dust that permeates our galaxy. ___________________________ 18. At the center of our galaxy resides a __________________________________ which is a strong radio source called _____________________________. ...
... around the center. 17. These are used to “see” through the gas and dust that permeates our galaxy. ___________________________ 18. At the center of our galaxy resides a __________________________________ which is a strong radio source called _____________________________. ...
Sample Exam 3
... 5) Up through the start of the 20th century, astronomers like Herschel and Kapteyn used counts of stars in the Milky Way to estimate the structure of the star system in which we live. From this evidence they concluded that A) the Sun was near the middle of a disk-like system of millions of stars. B) ...
... 5) Up through the start of the 20th century, astronomers like Herschel and Kapteyn used counts of stars in the Milky Way to estimate the structure of the star system in which we live. From this evidence they concluded that A) the Sun was near the middle of a disk-like system of millions of stars. B) ...
Galaxies and the Universe
... A New Name for the “Big Bang?” (Sky and Telescope, 1995) • The Big Boot • God’s Log-On • Fred Withair Day (“Nobody ever named anything else after me, so why not?”) • What Happens If I Push This Button? • You’re Never Going To Get It All Back In There Again ...
... A New Name for the “Big Bang?” (Sky and Telescope, 1995) • The Big Boot • God’s Log-On • Fred Withair Day (“Nobody ever named anything else after me, so why not?”) • What Happens If I Push This Button? • You’re Never Going To Get It All Back In There Again ...
COMING EVENTS The Pluto Files Volume 37 Number 03 March
... eye challenge, asks you to find Barnard’s Loop and the chart associated with this challenge shows the entire Orion constellation, so the chart in the book is probably all you need. Challenge 181, a globular cluster called Palomar 1 has a chart of smaller than one degree. Clearly, for some of these c ...
... eye challenge, asks you to find Barnard’s Loop and the chart associated with this challenge shows the entire Orion constellation, so the chart in the book is probably all you need. Challenge 181, a globular cluster called Palomar 1 has a chart of smaller than one degree. Clearly, for some of these c ...
Name ______KEY Date Core ______ Study Guide Galaxies and the
... When did the Big Bang happen and what has happened since? The big bang theory is theorized to have happened 14 billion years ago when the universe suddenly began to expand from one merged mass of matter or substance. At that time, all matter was dense and hot and the universe developed in less than ...
... When did the Big Bang happen and what has happened since? The big bang theory is theorized to have happened 14 billion years ago when the universe suddenly began to expand from one merged mass of matter or substance. At that time, all matter was dense and hot and the universe developed in less than ...
Slide 1
... This Hubble Deep Field view shows some extremely distant galaxies. The most distant appear irregular, supporting the theory of galaxy formation by merger. ...
... This Hubble Deep Field view shows some extremely distant galaxies. The most distant appear irregular, supporting the theory of galaxy formation by merger. ...
How the universe began
... light appears redder than expected because its wavelength is stretched. • Hubble’s results proved that galaxies move away from us. • The galaxies further away have a bigger red shift because they are moving away faster than closer galaxies ...
... light appears redder than expected because its wavelength is stretched. • Hubble’s results proved that galaxies move away from us. • The galaxies further away have a bigger red shift because they are moving away faster than closer galaxies ...
Lecture 7
... another important clue to Hubble types because galaxies collide in dense regions. 6) Computer simulations show what happens when disks collide. The collisions are “sticky,” and the galaxies merge unless they fly past one another very fast. The disks get completely disrupted, and the stars are thrown ...
... another important clue to Hubble types because galaxies collide in dense regions. 6) Computer simulations show what happens when disks collide. The collisions are “sticky,” and the galaxies merge unless they fly past one another very fast. The disks get completely disrupted, and the stars are thrown ...
Hubble Deep Field
The Hubble Deep Field (HDF) is an image of a small region in the constellation Ursa Major, constructed from a series of observations by the Hubble Space Telescope. It covers an area 2.5 arcminutes across, about one 24-millionth of the whole sky, which is equivalent in angular size to a 65 mm tennis ball at a distance of 100 metres. The image was assembled from 342 separate exposures taken with the Space Telescope's Wide Field and Planetary Camera 2 over ten consecutive days between December 18 and December 28, 1995.The field is so small that only a few foreground stars in the Milky Way lie within it; thus, almost all of the 3,000 objects in the image are galaxies, some of which are among the youngest and most distant known. By revealing such large numbers of very young galaxies, the HDF has become a landmark image in the study of the early universe, with the associated scientific paper having received over 900 citations by the end of 2014.Three years after the HDF observations were taken, a region in the south celestial hemisphere was imaged in a similar way and named the Hubble Deep Field South. The similarities between the two regions strengthened the belief that the universe is uniform over large scales and that the Earth occupies a typical region in the Universe (the cosmological principle). A wider but shallower survey was also made as part of the Great Observatories Origins Deep Survey. In 2004 a deeper image, known as the Hubble Ultra-Deep Field (HUDF), was constructed from a few months of light exposure. The HUDF image was at the time the most sensitive astronomical image ever made at visible wavelengths, and it remained so until the Hubble Extreme Deep Field (XDF) was released in 2012.