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Articles For Sale.indb
Articles For Sale.indb

... tripod, counterweights, 11⁄4" star diagonal, 25mm eyepiece, and finder scope. ...
Astronomical Observing Techniques Lecture 3: Eyes to the Skies
Astronomical Observing Techniques Lecture 3: Eyes to the Skies

... •  LOw Frequency ARray uses two types of lowArecibo cost antennae: •  Low Band Antenna (10-90 MHz) •  High Band Antenna (110-250 MHz). •  Antennae are organized in 36 sta8ons •  over ~100 km. Each sta8on contains •  96 LBAs and 48 HBAs •  Baselines: 100m – 1500km •  Main LOFAR subsystems: ...
userfiles/602xxh/files/2013%e5%b1%8a%e9%ab%98%e4%b8%89
userfiles/602xxh/files/2013%e5%b1%8a%e9%ab%98%e4%b8%89

... Picture our solar system. In the center, there’s our star, the sun. Orbiting the sun are eight planets, including Earth. But what about planets outside our solar system? About 15 years ago, scientists developed the tools to detect these “exoplanets”. Since then, they’ve spotted about 450. Most of th ...
Document
Document

... The Universe is filled with these star systems which themselves cluster together into larger systems. ...
Galaxies
Galaxies

Chapter 12 Lecture 2
Chapter 12 Lecture 2

... Hydrogen fuses in shell around core Helium fusion slowly begins Helium fusion rate rapidly rises ...
M104: The Sombrero Galaxy
M104: The Sombrero Galaxy

... your students’ misconceptions. Ask students to volunteer their ideas, or collect their papers, compile a list of misconceptions, and discuss them with the class. Ask students to review the galaxy images on the front and back of the Sombrero Galaxy lithograph. Additional spiral images are available o ...
New Worlds on the Horizon: Earth-Sized Planets Close to Other
New Worlds on the Horizon: Earth-Sized Planets Close to Other

... not sufficient to find a “twin” to the Earth-Sun system, but it is enough to detect somewhat more massive planets on closer orbits. Earth-mass planets could be detected around the lowest-mass (M dwarf) stars, whose motion will be more affected by an unseen companion. M dwarfs are numerous, and plane ...
JHK standard stars for large telescopes: the UKIRT Fundamental
JHK standard stars for large telescopes: the UKIRT Fundamental

... from the equator, became apparent. Consequently a further programme was initiated in 1994, with the intent of strengthening the mutual precision of the magnitudes and colours of the UKIRT Faint Standards and simultaneously of supplementing their number with additional stars, widely distributed both ...
New Worlds Ahead: The Discovery of Exoplanets
New Worlds Ahead: The Discovery of Exoplanets

... radial velocity of stars before the first detection. The most likely reason is that the first generation of spectroscopes were far from being accurate enough and did not allow much hope. Indeed, measuring a Doppler shift is a very challenging task that requires high signal-to-noise ratio, high resol ...
the UKIRT Fundamental and Extended lists
the UKIRT Fundamental and Extended lists

... from the equator, became apparent. Consequently a further programme was initiated in 1994, with the intent of strengthening the mutual precision of the magnitudes and colours of the UKIRT Faint Standards and simultaneously of supplementing their number with additional stars, widely distributed both ...
AR2013 - Vatican Observatory
AR2013 - Vatican Observatory

... collaboration with colleagues and institutions in the field. NASA will provide four all-sky cameras, which should be ready by the end of 2014. NEO Observations: The major difficulty in characterizing Near Earth Objects is that they are small, faint, and fast-moving. The time from discovery to when t ...
MS word document
MS word document

... Prof Rebolo opened the meeting by welcoming the attendees and inviting modifications to the agenda. The agenda was adopted and is attached for reference. Prof Gilmore presented an overview of OPTICON, stressing its role of bringing together groups with common problems to develop solutions/opportunit ...
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1 - EPJ Web of Conferences

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File - Mr. Gray`s Class
File - Mr. Gray`s Class

... The centerpiece of our planetary system is Sol (the Sun), a million-mile-wide, yellow dwarf star. Its gravity keeps the planets in orbit around it. Its vast outpouring of energy illuminates all the worlds around it and sustains the fragile life-forms on the watery planet we call Earth. To give you s ...
The following is a supplemental addendum to the included
The following is a supplemental addendum to the included

... your telescopes pointing accuracy after using the Last Alignment method. If the mount has not moved since the previous alignment then it is recommended to use Sync to improve the pointing accuracy of your mount. However, if the mount has been moved then changing alignment stars is the best way to re ...
Grade 8 Earth/Space Posttest
Grade 8 Earth/Space Posttest

... around its axis. B. It is winter in the Northern Hemisphere and summer in the Southern Hemisphere because the Earth is tilted on its axis. C. It is spring in the Northern Hemisphere and Fall in the Southern Hemisphere because Earth is farther from the Sun than it is at points A and C. D. It is summe ...
Grade 8 Earth/Space Posttest Select the best answer to each
Grade 8 Earth/Space Posttest Select the best answer to each

... around its axis. B. It is winter in the Northern Hemisphere and summer in the Southern Hemisphere because the Earth is tilted on its axis. C. It is spring in the Northern Hemisphere and Fall in the Southern Hemisphere because Earth is farther from the Sun than it is at points A and C. D. It is summe ...
Learning Outcomes for GSUSA Camp Activities
Learning Outcomes for GSUSA Camp Activities

... 1. Explain why planets are not always found in the same constellation. 2. Explain why some planets “appear” to move in the sky faster than other planets. a. Which planets appear to move fastest and why? 3. What are the relative distances of objects in our Solar System? a. Are planets that we can see ...
Spectroscopy and Spectrophotometry
Spectroscopy and Spectrophotometry

... at low order (m ~ 2). This spectrum is then split  again (perpendicularly) using an echelle gra@ng.  The echelle creates a spectrum at high order (m  ~ 50). At such high m, we have overlapping of  neighboring orders. The CCD image then  consists of ~50 ver@cally displaced orders. The  spectral range ...
1 NOTES ON GALILEO Galileo was born in Pisa of the famous
1 NOTES ON GALILEO Galileo was born in Pisa of the famous

... was aware of and proposed that it was due to light scattered back from the Earth towards the Moon. So this light starts from the Sun, goes to the Earth, is scattered from there towards the Moon, where it is scattered once again towards Earth. This explains its whiteness, since the Sun’s light is som ...
Lecture 9 - Notes on Galileo
Lecture 9 - Notes on Galileo

... was aware of and proposed that it was due to light scattered back from the Earth towards the Moon. So this light starts from the Sun, goes to the Earth, is scattered from there towards the Moon, where it is scattered once again towards Earth. This explains its whiteness, since the Sun’s light is som ...
A Beginner`s Guide to Choosing Binoculars and Telescopes for
A Beginner`s Guide to Choosing Binoculars and Telescopes for

... Binoculars also allow viewing with both eyes. This is more comfortable and natural, and it helps many observers get a perception of depth, though this is an illusion with objects of such large distance. You also avoid the distracting effect of blind spots and floaters in one eye or other. Dim object ...
NASA-TV Highlights
NASA-TV Highlights

... This is the time of year when the two brightest stars of summer, Arcturus and Vega, shine equally high overhead as evening grows late: Arcturus in the southwest, Vega toward the east. Arcturus and Vega are 37 and 25 light-years away, respectively. They represent the two commonest types of naked-eye ...
Joint Scientific Opportunities with the Giant Magellan Telescope and
Joint Scientific Opportunities with the Giant Magellan Telescope and

... 3.3 Debris Disks and Protoplanets. The GMT is being designed with extreme adaptive optics and imaging of exoplanets as a high priority. Old Jupiter class planets with small orbital semimajor axes will be detected in reflected light in the near-IR while younger giant planets will be imaged at longer ...
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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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