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New Generation Ground-Based Optical/Infrared Telescopes
New Generation Ground-Based Optical/Infrared Telescopes

... system (of which there are many examples in this encyclopedia), ground-based telescopes continue to play a very important role in making new discoveries, and this is the focus of this chapter. The discovery of the first Kuiper Belt Object (KBO) was made in 1992 on the University of Hawaii 2.2-m tele ...
Events - Temecula Valley Astronomers
Events - Temecula Valley Astronomers

... the Almagest. It was produced sometime in the mid-100s AD. Ptolemy applied a system of brightnesses that originated with Hipparchus. The brightest stars were said to be 1 st magnitude. The faintest stars were said to be 6th magnitude. This is the ancient origin of the system we still use in modern a ...
Chapter 15: The Milky Way Galaxy
Chapter 15: The Milky Way Galaxy

... How many stars does the Milky Way Galaxy contain? The Milky Way has about 200 billion stars. Where is our solar system located in the Milky Way Galaxy? The solar system is between the Sagittarius and Perseus spiral arms about 26,000 ly from the center of the Galaxy. Is the Sun moving through the Mil ...
High-Speed Ballistic Stellar Interlopers
High-Speed Ballistic Stellar Interlopers

... can pick up enough energy through gravitational interaction with the others to be thrown from the system. Determining how many stars have been ejected from their neighbors is important to conducting an accurate census of the various types of stars born in an interstellar cloud. Scientists try to und ...
te acher`s guide te acher`s guide
te acher`s guide te acher`s guide

... The signs of the zodiac are twelve different groups of stars that are named after animals or mythical creatures.They are constellations — patterns of stars in the night sky — that appear to create outlines of pictures when viewed from Earth. How are stars born? At first there are large clouds of gas ...
Origin of the Solar System
Origin of the Solar System

... At low pressures, such as those found in space, cooling materials generally condense directly from a gas into a solid. • When the solar system formed, temperatures near the ...
1 Marsbugs: The Electronic Astrobiology Newsletter, Volume 12
1 Marsbugs: The Electronic Astrobiology Newsletter, Volume 12

... Based on this approach, it might well be that last year's detection of a feeble speck of light next to the young brown dwarf 2M1207 by an international team of astronomers using the ESO Very Large Telescope is the long-sought bona-fide image of an exoplanet. A recent report based on data from the Hu ...
16. Gravity and Space - Mr. Brick's Web Page
16. Gravity and Space - Mr. Brick's Web Page

... intense conditions than humans can. Some, like the Martian Rovers, have been so successful that they have had their missions extended. ...
Early Star-Forming Galaxies
Early Star-Forming Galaxies

... Rodighiero used Herschel ’s far-infrared camera to look for galaxies hidden from visible-light observations because of their intervening dust. This allowed the astronomers to assemble a more complete picture of star birth than ever before. The team targeted two well-known regions of the sky that ha ...
m illikan`s o il d rop
m illikan`s o il d rop

... Look through the eye-piece and adjust until the cross-hairs are sharp and clear. Point the telescope at some distant object like a building or a tree and adjust the achromatic lens until the inverted image is in sharp focus. The telescope is now focused at infinity and should not be adjusted again t ...
Chapter 20
Chapter 20

... opened at the Palomar Observatory, also in California, and was for many years the largest in the world. Current electronic imaging detectors, specifically chargecoupled devices (CCDs) similar to those in camcorders and digital cameras, have made this and other large telescopes many times more powerf ...
The activities of the Astronomical Institute of the Slovak Academy of
The activities of the Astronomical Institute of the Slovak Academy of

... the initiation and impulsive acceleration phase, and their associated flares. We found a close synchronization between the CME acceleration profile and the flare energy release as indicated by the RHESSI hard X-ray flux onsets, as well as peaks occur simultaneously within 5 minutes. These findings ...
zog_data3
zog_data3

... Fidelis and Semper This group requested BST spectra of the objects found in the Bubble Deep Field, in particular the blue galaxy-like objects, the small red objects, and the objects that look like fuzzy balls. The time allocation committee rejected this proposal: given that it took 120 orbits to ev ...
The Interstellar Medium
The Interstellar Medium

... A World of Interstellar Medium The space between the stars is not completely empty, but filled with very dilute gas and dust, producing some of the most beautiful objects in the sky. We are interested in the interstellar ...
A Absolute Magnitude A scale for measuring the actual
A Absolute Magnitude A scale for measuring the actual

... A gigantic ball of ice and rock that orbit the Sun in a highly eccentric orbit. Some comets have an orbit that brings them close to the Sun where they form a long tail of gas and dust as they are heated by the Sun's rays. Conjunction An event that occurs when two or more celestial objects appear clo ...
Life Cycle of Stars
Life Cycle of Stars

... creation to which I have ever listened.” ...
The Interstellar Medium
The Interstellar Medium

... A World of Interstellar Medium The space between the stars is not completely empty, but filled with very dilute gas and dust, producing some of the most beautiful objects in the sky. We are interested in the interstellar ...
ISON network development in 2015
ISON network development in 2015

... • ISON is an open international project that cooperates with 38 observation facilities of various affiliation with 90 telescopes in 16 countries. • Keldysh Institute of Applied Mathematics of the Russian Academy of Sciences (KIAM) coordinates the ISON project, maintains space objects database of Rus ...
General Astronomy - Stockton University
General Astronomy - Stockton University

... By 1985, when van de Kamp published a final paper on his discovery, other astronomers, using different telescopes, could not find the distinctive wobble. One went so far as to suggest that the wobble was in the Sproul Telescope rather than in the star. Others claimed they detected a wobble, but not ...
How Hubble Space Telescope failed
How Hubble Space Telescope failed

... measure the position. This procedure involved auto‐reflecting a focused beam of light off the  end of a rod and observing an interference pattern from the beam that came back on itself.  Centering the light beam on the rod end was essential for the measurement. To prevent the  metering rod from bein ...
New Developments of Scintillating Crystal
New Developments of Scintillating Crystal

... Nucléaire et de Physique des Particules) division of the CNRS and Photonis. S.A.S. Brive la Gaillarde, a European manufacturer of photomultiplier tubes and night vision devices, a new series of scintillating crystal-based hybrid single photon light detectors (X-HPDs) is being developed. Such devices ...
R FIXED UNIVERSAL TELESCOPE
R FIXED UNIVERSAL TELESCOPE

... a long-exposure photograph of a spiral nebula with this combination, and continues it for two hours, when he notices that the wind is gradually increasing and the definition gradually falling. When, in another half-hour, definition has gone down to 4, which is his low limit for this focal ratio, his ...
Astronomical Chronicle  for September, 2008
Astronomical Chronicle for September, 2008

... It’s large!! In binoculars and small telescopes The galaxy is seen only as a blur, a far cry from the photos one sees in magazines. In a little larger scope, one can see two companion galaxies, M32 and M110. M32 is a round mag 9.0 blob seen close to the central core of M31. On the opposite side of t ...
Joining the Party - Lincoln-Sudbury Regional High School
Joining the Party - Lincoln-Sudbury Regional High School

... Nebula, where since 1963 hydroxyl (OH) masers have been detected in the hot, thick gas surrounding the bright central area of new stars. The location of the first known maser is marked by the yellow dot. We’ll see more observations of star forming regions and young stars throughout this Activity. Fo ...
Hubble Space Telescope
Hubble Space Telescope

...  HOUSING HUBBLE'S FLESH AND BONES 12. How much can the temperature change during one orbit around Earth? 13. What protects Hubble from extreme temperature changes? ...
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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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