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... In terms of mechanical quality, consistency, and comparative comprehensiveness of the system UNITRON was among the better telescope brands sold in the USA. These telescopes, mounts, and accessories were manufactured in Japan and distributed in the Americas from 1951 to about 1992. Their refracting t ...
Can TMT Image Habitable Planets ?
Can TMT Image Habitable Planets ?

Telescope 101 – An Introduction To The World Of Telescopes
Telescope 101 – An Introduction To The World Of Telescopes

... solar system. But almost everyone starts by being faced with a huge selection of telescopes and accessories and the question of which is the right telescope for their particular astronomical interests. In order to avoid the frustration of purchasing a telescope and then only later realizing that it ...
Sun - eyes-on-the-skies.org a Robotic Solar telescope
Sun - eyes-on-the-skies.org a Robotic Solar telescope

... telescopes with various filters that capture nonvisible parts of the sun's emission, such as x-rays and magnetic fields. This section will look at how these new methods for examining the sun are changing our understanding of sunspots. In addition, this section will explore the sunspot cycle, and the ...
Comet Lulin - indstate.edu
Comet Lulin - indstate.edu

... Since Comet Lulin will be moving opposite the motion of the Earth, it will appear to approach us and move away especially fast. Beginning in February 2009, Comet Lulin will rise at about midnight local time, and will be about 6th or 7th magnitude. This won't be bright enough to go out and look at ...
Detecting Earth Mass Planets with Gravitational
Detecting Earth Mass Planets with Gravitational

... to help determine the optimal planetary search strategy. For example, given a large number of events to monitor for planetary deviations and a limited amount of observing time, how long should we follow each event ? The probabilities given in Table 1 assume that each event is followed from event det ...
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m V

... ASTR112 The Galaxy Lecture 10 • Extinction is small in infrared • However some M giant stars have dust shells around them giving large circumstellar extinction • These circumstellar grains probably form in the atmosphere of the M star itself • Such stars generally show a broad dip in spectrum at λ ...
Section 4 of the ATM List FAQ
Section 4 of the ATM List FAQ

... Content: The codes don't really work for this book. A smattering of everything pre-Dobson, but does not attempt to cover basic TM information needed by those making a first scope. Comment: ATMT is a collection of articles from "The Maksutav Circulars." (dis)Organized along the lines of the origional ...
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Ong page 1 of VHE astro

... Highly magnetized rotating neutron star accelerates charged particles. These charges escape along open magnetic field lines in jets. In the process, they radiate and scatter photons to high energies. Details depend on specific models. Guy Blaylock - NEPPSR '04 ...
WORD - Astrophysics
WORD - Astrophysics

... Stars have focused the interest of astronomers for centuries. A great variety of observations have driven our knowledge of the processes leading to star formation, of how the interplay between gravity and nuclear reactions determine stellar evolution, and ultimately, the physical principles that exp ...
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Giant Stars

... •With a little higher temperature, they can add one more to make oxygen C + He  O + Energy •These processes produce far less energy than hydrogen burning ...
A Universe of Galaxies - Pennsylvania State University
A Universe of Galaxies - Pennsylvania State University

... What can outshine ~1000 supernovae for millions of years, and be just slightly larger than our Solar System? Theoretically, not much – only a very, very big black hole. • Start with a black hole with a mass of 10,000,000,000 Mʘ • Have a star come close enough to be tidally disrupted • Have the mater ...
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Galileo Gahilei Aiko Corralz Salt Lake Community

... objects in the universe. He is known and credited for these discoveries that he has made such as Jupiter’s four moons and phases of Venus. Galileo also was one of the first to observed Saturn’s rings, Neptune, sunspots on the Sun, and the mountains and craters on the moon. He has made these discover ...
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how to set out an angle with the theo020 theodolite

... The series of numbers that you see above Hz when you look into the circle viewer Horizontal clamp (HC): Lower clothespeg type lever that clamps the horizontal rotation of the theodolite. ...
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December 2011

... be a meteor shower known as the Geminid shower. The best time to watch for the meteors will be in the evening of 13 th and the morning of 14th December when the shower should be at its peak. However some should be visible all night. Unfortunately the Moon will be a waning gibbous crescent just 20° s ...
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Kein Folientitel

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Uranus

... Greek god of the Heavens, the son and mate of Gaia the father of Cronus (which is the Roman god Saturn). Uranus, was the first planet discovered in modern times. It was first identified by William Herschel but had actually been seen many times before but ignored as simply another star. Herschel name ...
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... corresponding to 10,000,000,000 times the distance between the earth and the sun. If we are in the southern hemisphere we can see the Large Magellanic Cloud with the naked eye in the Dorado ...
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30 Doradus - HubbleSOURCE

... corresponding to 10,000,000,000 times the distance between the earth and the sun. If we are in the southern hemisphere we can see the Large Magellanic Cloud with the naked eye in the Dorado ...
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Paper - ESA Conference Bureau

... instrument will be tested with the X-axis along the vertical direction, and the corresponding load case consists of 1g gravity in the same direction. For operational conditions, we assumed a uniform temperature variation of the payload of 5 °C, which may lead to a performance degradation due to a po ...
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A dust ring around Epsilon Eridani: analogue to the young Solar

... brightest when the dust is heated by luminous stars. Vega, Fomalhaut and β Pic are all luminous A-type stars, with much shorter lifetimes than the Sun, so that any planets would be short-lived. However, some G and K type stars detected by IRAS are suited to ground-based follow-up; in particular 5 ob ...
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... Galactic Center: Sagittarius A* At the center of our galaxy resides a supermassive black hole named Sagittarius A*. Because of interstellar extinction most of our information on Sgr A* comes from IR and radio ...
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Spitzer Space Telescope



The Spitzer Space Telescope (SST), formerly the Space Infrared Telescope Facility (SIRTF), is an infrared space observatory launched in 2003. It is the fourth and final of the NASA Great Observatories program.The planned mission period was to be 2.5 years with a pre-launch expectation that the mission could extend to five or slightly more years until the onboard liquid helium supply was exhausted. This occurred on 15 May 2009. Without liquid helium to cool the telescope to the very low temperatures needed to operate, most of the instruments are no longer usable. However, the two shortest-wavelength modules of the IRAC camera are still operable with the same sensitivity as before the cryogen was exhausted, and will continue to be used in the Spitzer Warm Mission. All Spitzer data, from both the primary and warm phases, are archived at the Infrared Science Archive (IRSA).In keeping with NASA tradition, the telescope was renamed after its successful demonstration of operation, on 18 December 2003. Unlike most telescopes that are named after famous deceased astronomers by a board of scientists, the new name for SIRTF was obtained from a contest open to the general public.The contest led to the telescope being named in honor of astronomer Lyman Spitzer, who had promoted the concept of space telescopes in the 1940s. Spitzer wrote a 1946 report for RAND Corporation describing the advantages of an extraterrestrial observatory and how it could be realized with available or upcoming technology. He has been cited for his pioneering contributions to rocketry and astronomy, as well as ""his vision and leadership in articulating the advantages and benefits to be realized from the Space Telescope Program.""The US$800 million Spitzer was launched from Cape Canaveral Air Force Station, on a Delta II 7920H ELV rocket, Monday, 25 August 2003 at 13:35:39 UTC-5 (EDT).It follows a heliocentric instead of geocentric orbit, trailing and drifting away from Earth's orbit at approximately 0.1 astronomical unit per year (a so-called ""earth-trailing"" orbit). The primary mirror is 85 centimeters (33 in) in diameter, f/12, made of beryllium and is cooled to 5.5 K (−449.77 °F). The satellite contains three instruments that allow it to perform astronomical imaging and photometry from 3 to 180 micrometers, spectroscopy from 5 to 40 micrometers, and spectrophotometry from 5 to 100 micrometers.
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