Document
... Initial Science Observations from Gemini North Engineering First Light on Gemini South Initial Science Observations from Gemini South Construction Close-out Science Observing and Instrument Commissioning ...
... Initial Science Observations from Gemini North Engineering First Light on Gemini South Initial Science Observations from Gemini South Construction Close-out Science Observing and Instrument Commissioning ...
The Visible and Infrared Survey Telescope for Astronomy \(VISTA
... Received 12 September 2014 / Accepted 15 December 2014 ABSTRACT ...
... Received 12 September 2014 / Accepted 15 December 2014 ABSTRACT ...
KEPLER: Search for Earth-Size Planets in the Habitable Zone
... (Astrophysical Science with a Space borne Photometric Telescope, 1984) was held at the SETI Institute in Mountain View, CA. Promising areas of investigations included: solar and stellar physics; including star spots, activity cycle, oscillation, rotation rates, and flares, 2) stellar variability inc ...
... (Astrophysical Science with a Space borne Photometric Telescope, 1984) was held at the SETI Institute in Mountain View, CA. Promising areas of investigations included: solar and stellar physics; including star spots, activity cycle, oscillation, rotation rates, and flares, 2) stellar variability inc ...
Coating Gemini Telescopes with Protected Silver
... chamber as quickly as possible to keep particulate contaminants from settling on the surface. In the case of M1, the substrate is blown with carbon dioxide (CO2) snow as it is moved into the vacuum chamber. For M2 and other small optics, the substrate surface is cleaned with CO2 snow just prior to c ...
... chamber as quickly as possible to keep particulate contaminants from settling on the surface. In the case of M1, the substrate is blown with carbon dioxide (CO2) snow as it is moved into the vacuum chamber. For M2 and other small optics, the substrate surface is cleaned with CO2 snow just prior to c ...
- CUNY Academic Works
... The study of the universe is a fascinating subject, but if it had not been for the last four hundred years of technological innovations we would not understand it to the extent that we do today. The instruments used by astronomers have drastically changed over the centuries since the introduction of ...
... The study of the universe is a fascinating subject, but if it had not been for the last four hundred years of technological innovations we would not understand it to the extent that we do today. The instruments used by astronomers have drastically changed over the centuries since the introduction of ...
Manual - Scientifics
... fantastic sight through your scope. The tiltangle of the rings varies over a period of many years, so they may be seen edge-on (like a thin line) or broadside (like giant “ears” on each side of the planet). You will need a good steady atmosphere to achieve a worthwhile view of Saturn. If you look cl ...
... fantastic sight through your scope. The tiltangle of the rings varies over a period of many years, so they may be seen edge-on (like a thin line) or broadside (like giant “ears” on each side of the planet). You will need a good steady atmosphere to achieve a worthwhile view of Saturn. If you look cl ...
Performance of the Hobby-Eberly Telescope and facility instruments
... University, Georg-August-Universität, Göttingen, and Ludwig-Maximillians-Universität, Munich. The pupil is 9.2 m in diameter, and sweeps over the primary mirror as the x-y tracker follows objects for between 40 minutes (in the south at δ = -10.3o) and 2.8 hours (in the north at δ = +71.6o). The maxi ...
... University, Georg-August-Universität, Göttingen, and Ludwig-Maximillians-Universität, Munich. The pupil is 9.2 m in diameter, and sweeps over the primary mirror as the x-y tracker follows objects for between 40 minutes (in the south at δ = -10.3o) and 2.8 hours (in the north at δ = +71.6o). The maxi ...
Construction of a unit power finder
... The popularity of unit power finders made me wonder if it was possible to construct one myself. The principle of these finders is relatively simple. A reticule or point like source is projected as a parallel beam. The eye sees this reticule as projected onto the night sky. The same principle is used ...
... The popularity of unit power finders made me wonder if it was possible to construct one myself. The principle of these finders is relatively simple. A reticule or point like source is projected as a parallel beam. The eye sees this reticule as projected onto the night sky. The same principle is used ...
香港考試局
... eyepiece of focal length 5 cm. It is used to look at a distant object when its lenses are set 45 cm apart. The final image seen is A. upright, virtual and at infinity. B. upright, real and at infinity. C. inverted, virtual and at the least distance of distinct vision. D. inverted, virtual and at inf ...
... eyepiece of focal length 5 cm. It is used to look at a distant object when its lenses are set 45 cm apart. The final image seen is A. upright, virtual and at infinity. B. upright, real and at infinity. C. inverted, virtual and at the least distance of distinct vision. D. inverted, virtual and at inf ...
Topic 11_4__Resolution
... Describe the significance of resolution in the development of devices such as CDs and DVDs, the electron microscope and radio telescopes. PRACTICE: CDs and DVDs consist of very tiny pits and peaks that represent zeros and ones (binary). These pits are detected by laser light. Explain why DVDs can ho ...
... Describe the significance of resolution in the development of devices such as CDs and DVDs, the electron microscope and radio telescopes. PRACTICE: CDs and DVDs consist of very tiny pits and peaks that represent zeros and ones (binary). These pits are detected by laser light. Explain why DVDs can ho ...
Jul y 9- 11,
... Studies of the triggering of X-ray AGN in clusters have to date been hindered by small sample sizes. To address this we have undertaken a survey of 11,000 X-ray AGN in the fields of 135 of the most massive clusters known, where the high galaxy and gas densities offer a unique opportunity to examine ...
... Studies of the triggering of X-ray AGN in clusters have to date been hindered by small sample sizes. To address this we have undertaken a survey of 11,000 X-ray AGN in the fields of 135 of the most massive clusters known, where the high galaxy and gas densities offer a unique opportunity to examine ...
WISE General Presentation - Georgia Southern University
... The Range of Infrared Light Infrared light lies just beyond the red portion of the visible spectrum ("below red“). Infrared wavelengths are about 0.7 to ...
... The Range of Infrared Light Infrared light lies just beyond the red portion of the visible spectrum ("below red“). Infrared wavelengths are about 0.7 to ...
Document
... – How can we do AO for visible light (replace Hubble on the ground)? – How can we do laser guide star AO on future 30-m telescopes? Page 56 ...
... – How can we do AO for visible light (replace Hubble on the ground)? – How can we do laser guide star AO on future 30-m telescopes? Page 56 ...
Title: Optical and NEar IR Interferometric or
... instantaneous wave front phase error that are due to different layers of the atmosphere. Although not yet tested in practice, for the obvious reason that even single laser AO is still in its infancy, the TF method is essentially based on geometry and is therefore fairly solid if laser stars work. Ex ...
... instantaneous wave front phase error that are due to different layers of the atmosphere. Although not yet tested in practice, for the obvious reason that even single laser AO is still in its infancy, the TF method is essentially based on geometry and is therefore fairly solid if laser stars work. Ex ...
Smallest Kuiper Belt Object Ever Detected
... The Kuiper belt, a region of small, icy bodies thought to be left over from the formation of the solar system, extends from the orbit of Neptune to more than 5 trillion miles from the Sun. It contains numerous bodies called Kuiper belt objects (KBOs), the most famous being Pluto and its moons. Due t ...
... The Kuiper belt, a region of small, icy bodies thought to be left over from the formation of the solar system, extends from the orbit of Neptune to more than 5 trillion miles from the Sun. It contains numerous bodies called Kuiper belt objects (KBOs), the most famous being Pluto and its moons. Due t ...
SXVR-H814 handbook
... for the focus to be trimmed to its optimum setting Several astronomical stores sell adjustable par-focal eyepieces, but you can also make your own with a minimum of materials and an unwanted Kellner or Plossl ocular. Just measure a distance of 17mm from the field stop of the eyepiece (equivalent to ...
... for the focus to be trimmed to its optimum setting Several astronomical stores sell adjustable par-focal eyepieces, but you can also make your own with a minimum of materials and an unwanted Kellner or Plossl ocular. Just measure a distance of 17mm from the field stop of the eyepiece (equivalent to ...
Titelseite
... so-called R- (rapid) and S- (slow-) process. • Heavy elements can resign from starts in supernova explosions or with the help of convection- they are then carried away by solar winds. • These elements can only be used for gamma line spectroscopy once they have left the starts, as the star itself is ...
... so-called R- (rapid) and S- (slow-) process. • Heavy elements can resign from starts in supernova explosions or with the help of convection- they are then carried away by solar winds. • These elements can only be used for gamma line spectroscopy once they have left the starts, as the star itself is ...
Presentation to D/IMT of the Status of the D/SCI Technologies
... Radiation damage factor 2 worse than expected, Requires annealing every 6 months – a loss of observing time (and suspected loss of diodes through thermal cycling?) • Background also twice expected, spectral lines and showers reduce sensitivity • JEM-X – contamination in glass strips – breakdown in g ...
... Radiation damage factor 2 worse than expected, Requires annealing every 6 months – a loss of observing time (and suspected loss of diodes through thermal cycling?) • Background also twice expected, spectral lines and showers reduce sensitivity • JEM-X – contamination in glass strips – breakdown in g ...
Jupiter returns as king of the night sky
... Jupiter returns as king of the night sky 8 March 2016, by Tanya Hill, University Of Melbourne, The Conversation Regulus, a Latin name that means "little king". Regulus is the brightest star in the constellation of Leo, the lion. You might even be able to see the lion's mane – beginning with Regulus, ...
... Jupiter returns as king of the night sky 8 March 2016, by Tanya Hill, University Of Melbourne, The Conversation Regulus, a Latin name that means "little king". Regulus is the brightest star in the constellation of Leo, the lion. You might even be able to see the lion's mane – beginning with Regulus, ...
Y-band Imaging of Extragalatic Fields and High redshift
... cal Astronomy Observatory (LOAO) and the Maidanak Observatory. The deepest limit magnitude of 260 minutes exposure is Y = 21.5 AB mag in case of LOAO and Y = 22 AB mag for the Maidanak Observatory. Using the Y-band imaging data, we measured photometric calibration parameters of Y-band. We got two ph ...
... cal Astronomy Observatory (LOAO) and the Maidanak Observatory. The deepest limit magnitude of 260 minutes exposure is Y = 21.5 AB mag in case of LOAO and Y = 22 AB mag for the Maidanak Observatory. Using the Y-band imaging data, we measured photometric calibration parameters of Y-band. We got two ph ...
Open Access proceedings Journal of Physics: Conference
... The remaining half can be routed though a broadband 180° hybrid followed by two detectors, producing (Ex+Ey)2/4 and (Ex-Ey)2/4. The difference between each detector pair produces Q and U respectively. If the detectors are photon noise limited, there is no sensitivity penalty in such an arrangement. ...
... The remaining half can be routed though a broadband 180° hybrid followed by two detectors, producing (Ex+Ey)2/4 and (Ex-Ey)2/4. The difference between each detector pair produces Q and U respectively. If the detectors are photon noise limited, there is no sensitivity penalty in such an arrangement. ...
Finding KBO Flyby Targets for New Horizons
... candidate targets must be observed for 2-3 years to determine a good orbit, targets for the 2015 Pluto flyby trajectory must be identified by about 2012, while the search area is still deep in the Milky Way, though a 2007 launch and 2019 Pluto flyby will allow a later search in less crowded fields. ...
... candidate targets must be observed for 2-3 years to determine a good orbit, targets for the 2015 Pluto flyby trajectory must be identified by about 2012, while the search area is still deep in the Milky Way, though a 2007 launch and 2019 Pluto flyby will allow a later search in less crowded fields. ...
XMM-Newton
The XMM-Newton, also known as the X-ray Multi-Mirror Mission and the High Throughput X-ray Spectroscopy Mission, is an orbiting X-ray observatory launched by ESA in December 1999 on an Ariane 5 rocket. It is named in honor of Sir Isaac Newton. The telescope was placed in a very eccentric 48 hour elliptical orbit at 40°; at its apogee it is nearly 114,000 kilometres (71,000 mi) from Earth, while the perigee is only 7,000 kilometres (4,300 mi).