Astronomical Observations (Fall 2004) Final Exam
... count rate is 16 s-1. Assuming that the noise is random and that equal time is spent observing on and off the source, find the total integration time needed to detect a source whose strength is 1% of the background if the criterion for detection is that the signal-to-noise ratio is 3. (10 pts) ...
... count rate is 16 s-1. Assuming that the noise is random and that equal time is spent observing on and off the source, find the total integration time needed to detect a source whose strength is 1% of the background if the criterion for detection is that the signal-to-noise ratio is 3. (10 pts) ...
The William Optics Gran Turismo 81
... found it to be perfect. At low and high powers, stars were pinpoint across the field of view. I viewed Saturn with my 5-mm Nagler eyepiece (128x). The rings were in their splendor with the Cassini Divisions easily seen. With only 3.2 inches of aperture, this is not a telescope for deep-space observi ...
... found it to be perfect. At low and high powers, stars were pinpoint across the field of view. I viewed Saturn with my 5-mm Nagler eyepiece (128x). The rings were in their splendor with the Cassini Divisions easily seen. With only 3.2 inches of aperture, this is not a telescope for deep-space observi ...
Sirius Astronomer - Orange County Astronomers
... of distant material should take years or more, not weeks. Two scenarios have been proposed to explain the fast changes: lumpy filaments extend from the outer regions, transporting cool gas to the center regions; hot material piles up in the inner regions and shadows other material that can remain co ...
... of distant material should take years or more, not weeks. Two scenarios have been proposed to explain the fast changes: lumpy filaments extend from the outer regions, transporting cool gas to the center regions; hot material piles up in the inner regions and shadows other material that can remain co ...
Gresham Lecture, Wednesday 15 December 2010 Unsolved
... only matter. So far, physicists have not been able to identify the exact mechanism that would produce this apparent "asymmetry", or difference, between matter and antimatter to explain why there arose this tiny excess of matter over antimatter. Today, antimatter is created primarily by cosmic rays ...
... only matter. So far, physicists have not been able to identify the exact mechanism that would produce this apparent "asymmetry", or difference, between matter and antimatter to explain why there arose this tiny excess of matter over antimatter. Today, antimatter is created primarily by cosmic rays ...
project.generative.interactive.music
... observation was taken Aug. 2, 1997 by the Hubble telescope's Wide Field and Planetary Camera 2. In this image, neutral oxygen is shown in red, onceionized nitrogen in green, and twice-ionized oxygen in blue. ...
... observation was taken Aug. 2, 1997 by the Hubble telescope's Wide Field and Planetary Camera 2. In this image, neutral oxygen is shown in red, onceionized nitrogen in green, and twice-ionized oxygen in blue. ...
Seeing dark matter in the Andromeda galaxy
... Ford and I studied the orbital velocities of stars in the Andromeda galaxy 40 years ago. Our study was influential in the later conclusion that most of the matter in the universe is dark. In January 1965 I walked into the Department of Terrestrial Magnetism (affectionately known as DTM), and asked f ...
... Ford and I studied the orbital velocities of stars in the Andromeda galaxy 40 years ago. Our study was influential in the later conclusion that most of the matter in the universe is dark. In January 1965 I walked into the Department of Terrestrial Magnetism (affectionately known as DTM), and asked f ...
The Mirror Alignment Recovery System for the Hobby
... The Mirror Alignment Recovery System (MARS) Proof-of-Concept instrument ...
... The Mirror Alignment Recovery System (MARS) Proof-of-Concept instrument ...
NIE10x301Sponsor Thank You (Page 1)
... 10x50 binoculars or a small telescope. A good place to start spring time galaxy hunting is the familiar Big Dipper (part of the constellation Ursa Major), prominent in the northern sky year-‘round but poised almost overhead at this time of year after dark. A bright pair of galaxies, M81 and M82, can ...
... 10x50 binoculars or a small telescope. A good place to start spring time galaxy hunting is the familiar Big Dipper (part of the constellation Ursa Major), prominent in the northern sky year-‘round but poised almost overhead at this time of year after dark. A bright pair of galaxies, M81 and M82, can ...
R FIXED UNIVERSAL TELESCOPE
... of 30º is considered, the telescope can be used without serious loss of light through a range of about 40º (from 12ºN to 52ºN)2. D- Difficulties in interchanging mirrors and accessory equipment. Ritchey planed to install three fixed universal telescopes at different latitudes in order to cover the w ...
... of 30º is considered, the telescope can be used without serious loss of light through a range of about 40º (from 12ºN to 52ºN)2. D- Difficulties in interchanging mirrors and accessory equipment. Ritchey planed to install three fixed universal telescopes at different latitudes in order to cover the w ...
The Cook Memorial Library
... Deep-Sky Objects, also referred to a “dim-fuzzes” are often hard to find at first. They are worth the effort, being some of most wonderful things in the night sky. To find deep-sky objects, refer to the DeepMap600, provided with the telescope (instructions are on the map). Many free online resource ...
... Deep-Sky Objects, also referred to a “dim-fuzzes” are often hard to find at first. They are worth the effort, being some of most wonderful things in the night sky. To find deep-sky objects, refer to the DeepMap600, provided with the telescope (instructions are on the map). Many free online resource ...
Inexpensive mount for a large millimeter
... performance using active control based on strut temperature measurements, without the cost and complexity of a panel edge sensor system. Thermal deformation of the primary can be calculated using a finite element model, but the model must be optimized based on surface error measurements with differe ...
... performance using active control based on strut temperature measurements, without the cost and complexity of a panel edge sensor system. Thermal deformation of the primary can be calculated using a finite element model, but the model must be optimized based on surface error measurements with differe ...
Orion StarBlast 4.5” Telescope STAR Program
... might be able to see a bright Venus, cloud bands on Jupiter, the rings of Saturn, a dusty red Mars and a blue Uranus and Neptune. The waxing and waning of Venus should be visible and many bright deep sky objects will fill the eyepiece. Craters on the Moon will be clear and numerous. Don’t expect to ...
... might be able to see a bright Venus, cloud bands on Jupiter, the rings of Saturn, a dusty red Mars and a blue Uranus and Neptune. The waxing and waning of Venus should be visible and many bright deep sky objects will fill the eyepiece. Craters on the Moon will be clear and numerous. Don’t expect to ...
OBJXlab-JCU_Alt
... There are so many things in the sky, however, that what may be in full view may not be easy to distinguish. The main task of astronomical discovery, in short, is to recognize a few objects of interest among the billions and billions of points of light we detect up there. It’s like the puzzles in the ...
... There are so many things in the sky, however, that what may be in full view may not be easy to distinguish. The main task of astronomical discovery, in short, is to recognize a few objects of interest among the billions and billions of points of light we detect up there. It’s like the puzzles in the ...
Galaxies - Wallkill Valley Regional High School
... Galaxies contain millions or billions of stars held together by gravity Gravity holds galaxies together in clusters Clusters of galaxies can form even larger groups called superclusters How do we see galaxies? We can see our own Milky Way without the use of a telescope Spyglasses let us see further ...
... Galaxies contain millions or billions of stars held together by gravity Gravity holds galaxies together in clusters Clusters of galaxies can form even larger groups called superclusters How do we see galaxies? We can see our own Milky Way without the use of a telescope Spyglasses let us see further ...
Chapter 24 Studying the Sun Section 1 The Study of Light Key
... Radio telescopes have revealed such spectacular events as the collision of two galaxies. They led to the important discovery of quasars and pulsars. Space Telescopes Have you ever seen a blurring effect caused by the movement of air on a hot summer day? That blurring effect also distorts the images ...
... Radio telescopes have revealed such spectacular events as the collision of two galaxies. They led to the important discovery of quasars and pulsars. Space Telescopes Have you ever seen a blurring effect caused by the movement of air on a hot summer day? That blurring effect also distorts the images ...
Measuring the Solar Diameter with a Michelson Radio
... 2. Decide when you will conduct your observations. The radio signal from the Sun or the TV satellites is not affected by cloud cover. However, having enough sunlight so that you can see shadows will help greatly with the calibration of the telescope pointing on the Sun. You will also need the Sun to ...
... 2. Decide when you will conduct your observations. The radio signal from the Sun or the TV satellites is not affected by cloud cover. However, having enough sunlight so that you can see shadows will help greatly with the calibration of the telescope pointing on the Sun. You will also need the Sun to ...
470 x 60 Zoom Refractor Telescope
... 1. First determine your targeted object. Any bright object in the night sky is a good starting point. One of the favorites in astronomy is the moon. This is an object sure to please any budding astronomer or experienced veteran. When you have developed proficiency at this level, other objects become ...
... 1. First determine your targeted object. Any bright object in the night sky is a good starting point. One of the favorites in astronomy is the moon. This is an object sure to please any budding astronomer or experienced veteran. When you have developed proficiency at this level, other objects become ...
Progress on the 1.6-meter New Solar Telescope at Big Bear Solar
... will reached after hand polishing and removal of a few “high spots”. The CGH technique is not required for the NST project, since the short focal length would allow standard null lens testing, but will have to work for the 8-meter project. Space Optics Research Labs (SORL) are figuring the parent op ...
... will reached after hand polishing and removal of a few “high spots”. The CGH technique is not required for the NST project, since the short focal length would allow standard null lens testing, but will have to work for the 8-meter project. Space Optics Research Labs (SORL) are figuring the parent op ...
... With the hi-precision setting activated, and an accurate alignment, the LX200 is capable of a pointing accuracy of 1 arc minute (for comparison, the 6.4 mm eyepiece has a FOV of about 10 arc minutes and the CCD has one of about 8x11 arc minutes). Technically, in order to use the hi-precision pointin ...
OSA6Challenges and opportunities - DU Portfolio
... To appreciate the opportunities afforded by the Mt. Evans site, a review of local astronomy history is appropriate. In 1880, Herbert A. Howe arrived from the Cincinnati Observatory as a new professor of mathematics and astronomy at the University of Denver. By the end of that decade, a patron enabl ...
... To appreciate the opportunities afforded by the Mt. Evans site, a review of local astronomy history is appropriate. In 1880, Herbert A. Howe arrived from the Cincinnati Observatory as a new professor of mathematics and astronomy at the University of Denver. By the end of that decade, a patron enabl ...
James Webb Space Telescope
The James Webb Space Telescope (JWST), previously known as Next Generation Space Telescope (NGST), is a space observatory under construction and scheduled to launch in October 2018. The JWST will offer unprecedented resolution and sensitivity from long-wavelength visible to the mid-infrared, and is a successor instrument to the Hubble Space Telescope and the Spitzer Space Telescope. The telescope features a segmented 6.5-meter (21 ft) diameter primary mirror and will be located near the Earth–Sun L2 point. A large sunshield will keep its mirror and four science instruments below 50 K (−220 °C; −370 °F).JWST's capabilities will enable a broad range of investigations across the fields of astronomy and cosmology. One particular goal involves observing some of the most distant objects in the Universe, beyond the reach of current ground and space based instruments. This includes the very first stars, the epoch of reionization, and the formation of the first galaxies. Another goal is understanding the formation of stars and planets. This will include imaging molecular clouds and star-forming clusters, studying the debris disks around stars, direct imaging of planets, and spectroscopic examination of planetary transits.In gestation since 1996, the project represents an international collaboration of about 17 countries led by NASA, and with significant contributions from the European Space Agency and the Canadian Space Agency. It is named after James E. Webb, the second administrator of NASA, who played an integral role in the Apollo program.The JWST has a history of major cost overruns and delays. The first realistic budget estimates were that the observatory would cost $1.6 billion and launch in 2011. NASA has now scheduled the telescope for a 2018 launch. In 2011, the United States House of Representatives voted to terminate funding, after about $3 billion had been spent and 75 percent of its hardware was in production. Funding was restored in compromise legislation with the US Senate, and spending on the program was capped at $8 billion. As of December 2014, the telescope remained on schedule and within budget, but at risk of further delays.