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April 18 - 22, 2011
April 18 - 22, 2011

... · Vega, the "Summer Star," is now rising in the northeast right around the end of twilight (depending on your latitude). Later in the night as Vega rises higher, look for its dim little constellation Lyra dangling from it toward the lower right. · A dawn challenge! On Tuesday morning, about 15 minut ...
Chapter 16
Chapter 16

... formed into a disk. 4. Density waves formed in the Galaxy’s disk, creating the spiral arms where star formation continues today. 5. In an alternative model, several separate clouds of gas merge to form than Galaxy rather than one. High-velocity atomic hydrogen clouds have been observed since 1963; t ...
AS3010: Introduction to Space Technology
AS3010: Introduction to Space Technology

... Sidereal day for earth is shorter than the solar day. Sidereal day for a planet would be longer than its solar day if it were to revolve around the Sun in clockwise direction (when view from North pole down). However, none of the planets do that. Venus has its sidereal day greater than its solar day ...
Flagship imaging SAG report
Flagship imaging SAG report

... Objective 10: In dusty systems, detect and measure substructures within dusty debris that can be used to infer the presence of unseen planets. Objective 11: Understand the time evolution of circumstellar disk properties around a wider star sample at greater distances, from early protoplanetary stag ...
(NWNH) recommends WFIRST
(NWNH) recommends WFIRST

... • carry out a detailed study of weak lensing that will provide distance and rateof-growth information; • monitor distances and expansion rate using baryon acoustic oscillations • detect about 2,000 distant supernova explosions, which can be used to measure distances. ...
Image Analysis of Planetary Nebula NGC 6543 South Carolina State University
Image Analysis of Planetary Nebula NGC 6543 South Carolina State University

... infrared, ultra-violent and x-ray sources, yet, their brightness in the radio sources will decrease as a planetary nebula's ages and expands as well as become more diffuse. They have radii in the range of 0.2 to 3 light-years and an expansion rate of 10 to 20 km/s. The youngest planetary nebulae ar ...
South Physics Observatory
South Physics Observatory

... Whether it be at your local school or our observatory, we can host star and solar parties for you and your group ranging from 15-100+ participants. Is there a community event that you would like us to take part in? Let us know and we’ll be glad to come! We can bring some displays or telescopes to he ...
Astrometry: Revealing the Other Two Dimensions of
Astrometry: Revealing the Other Two Dimensions of

... Galileo was interested in double stars as a means for proving the heliocentric theory. He assumed systems were optical in nature. ...
- MNASSA Page
- MNASSA Page

... more than 30 arc minutes. It is a very nice object to study through binoculars. The Magellanic Cloud is home to NGC 2070, also known as Bennett 35, the great looped nebula situated in the south-eastern part of the Cloud and probably one of the most amazing objects in the southern night sky. Known as ...
Dishing Up the Data: The Role of Australian Space Tracking and
Dishing Up the Data: The Role of Australian Space Tracking and

... performance of the DSIF itself was highly successful and demonstrated the importance of a world-wide tracking station network, controlled from a central location (in this case JPL), as an essential element in future space missions to the Moon and planets12. NASA’s first successful planetary mission ...
GM-8 manual-05.cdr
GM-8 manual-05.cdr

... The TVC (Time Variable Compensation) function allows you to eliminate the backlash in the DEC motor when changing directions such as from North to South or vice versa. Each time you change the direction of the telescope in declination, the motor speeds up momentarily to take up any slack, There are ...
Signatures of planets and of planet formation in debris disks Mark
Signatures of planets and of planet formation in debris disks Mark

... ~1Rsun tidal destruction radius (von Hippel et al. 2007; Farihi et al. 2009), some also have CaII emission from circumstellar gas at same location (Gaensicke et al. 2009), while more have metal polluted atmospheres from accretion of rocky material (Girven et al. 2012) ...
Desert Skies - Tucson Amateur Astronomy Association
Desert Skies - Tucson Amateur Astronomy Association

... for future in city star parties. The main issues are having access to restrooms, a facility that is open at least to 9:00 PM and that is on or close to a Sun Tran route for easy transit access. Once these kinks have been worked out we will be able to proceed. We were also asked to check and see if t ...
Handout Galilean telescope how to make
Handout Galilean telescope how to make

... Figure 4 - Finding the focal length (17cm lens) with a ruler and positioning the lens at the point where a distant image first inverts This third method is sensitive your vision. If you wear eyepieces, the power of your eyeglass lens will change the measurement. In the preceding figure, a tree acros ...
Paper - AMOS Conference
Paper - AMOS Conference

... more apparent in this view and while the streak passes though this region, its low per-pixel significance renders it invisible. Figure 5 shows the same zoomed in region as Figure 4 but with the streak intensity enhanced by a factor of 10 (2.5 magnitudes). It is now clearly visible and would be easy ...
Slide 1
Slide 1

... It has approximately fifty times better resolution (pixel area fifty or more times smaller) than the one on the left. In the Chandra image, new details-rings and jets in the region around the pulsar-provide valuable information for understanding how the pulsar transmits energy to the nebula as a who ...
Galileo galilei
Galileo galilei

... got a job as a teacher. He began experimenting with balls, lever, and other objects while he tried to describe how they moved with mathematic equation. That makes him an idea to create an invention called Hydrostatics Balance. ...
Galileo`s Observation of Neptune 1612-1613
Galileo`s Observation of Neptune 1612-1613

... Just about all of the “fixed stars” Galileo records in his notebooks while observing Jupiter appear in modern star catalogues. However one of those “fixed stars”, seen in December 1612 and January 1613 does not appear in any star catalogue. This particular “fixed star” turns out to be something enti ...
Great Migrations & other natural history tales
Great Migrations & other natural history tales

... ultra-hot accretion disk with a few AU from the BH. This disk feeds matter into the BH, where gravity compresses and heats the material. Hot gas rushes from the vicinity of the BH creating the radio jets. The jets are aligned perpendicular to the disk. This provides strong circumstantial evidence fo ...
PPT
PPT

... • GAIA will measure  to 510-7 from positional displacement at large angles from the Sun –  currently known to 10-5 – GAIA tests GR at 10-100 times lower mass than presently – effect of Sun: 4 mas at 90o; Jovian limb: 17 mas; Earth: 40 as • Microlensing: photometric (~1000) and astrometric (few) ...
Overview and Status of the Giant Magellan Telescope Project
Overview and Status of the Giant Magellan Telescope Project

... structure of the GMT enclosure. All optics reside within the OSS. Three instrument-mounting stations are also located within the moving structure of the telescope (the OSS) below the primary mirror. An additional gravity invariant station is available on the azimuth structure for instruments that re ...
3. Telescopes: The Tools of Astronomy
3. Telescopes: The Tools of Astronomy

... can detect. This supernova remnant would be nearly invisible without the Fermi satellite and its gammaray detector. ...
Lecture 12: Galaxies View of the Galaxy from within Comparison to
Lecture 12: Galaxies View of the Galaxy from within Comparison to

... dust and gas strongly concentrated in the disk plane. •  The Sun orbits around the Galactic centre at a speed of about 220 km s-1. •  It takes about 220 million years to complete one orbit ...
Discover - Astronomy Magazine
Discover - Astronomy Magazine

... With today’s advanced instruments, astronomers can for the first time search the universe’s gravitational extremes for relativity’s possible breaking point. New telescopes and detectors are helping astronomers look far beyond the solar system, where nearly all tests so far have occurred. They aim to ...
Articles For Sale.indb
Articles For Sale.indb

... tripod, counterweights, 11⁄4" star diagonal, 25mm eyepiece, and finder scope. ...
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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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