Sky and Telescope - CAMS
... of 64 “established” meteor showers. At the August International Astronomical Union’s General Assembly in Beijing, which will take place about two months after this issue goes to press, we expect to expand this official list greatly. These developments are quite recent. Our Cameras for Allsky Meteor ...
... of 64 “established” meteor showers. At the August International Astronomical Union’s General Assembly in Beijing, which will take place about two months after this issue goes to press, we expect to expand this official list greatly. These developments are quite recent. Our Cameras for Allsky Meteor ...
π of the Sky
... Las Campanas Observatory (LCO) 2 CCD cameras (own developed construction) The matrix: 2k × 2k pixels Field of view (FOV): 20º × 20º Range: 10...11m (1 frame), 12...13m (20 frames) ...
... Las Campanas Observatory (LCO) 2 CCD cameras (own developed construction) The matrix: 2k × 2k pixels Field of view (FOV): 20º × 20º Range: 10...11m (1 frame), 12...13m (20 frames) ...
Success, Truth, and the Galilean Strategy
... GS1k Inferring truth from success provides correct answers up to and along the vague boundary between the observable and the unobservable. Of course, ‘success’ must be understood in a rather strict way. If the querist’s only goal is to give up smoking, then the correlation with truth will not be rob ...
... GS1k Inferring truth from success provides correct answers up to and along the vague boundary between the observable and the unobservable. Of course, ‘success’ must be understood in a rather strict way. If the querist’s only goal is to give up smoking, then the correlation with truth will not be rob ...
ROSAT Ian R. Stevens* and David K. Strickland*
... galaxy NGC 1365 in our sample, for reasons set out in Section 3.1. We note that the detection of a broad He II l4686 feature can be difficult even with high signal-to-noise ratio (S/N) data. This does mean that our sample of WR galaxies will tend to be rather heterogenous. Future studies will have t ...
... galaxy NGC 1365 in our sample, for reasons set out in Section 3.1. We note that the detection of a broad He II l4686 feature can be difficult even with high signal-to-noise ratio (S/N) data. This does mean that our sample of WR galaxies will tend to be rather heterogenous. Future studies will have t ...
Document
... created from data obtained with the science instrument on ESA’s Hipparcos satellite, the first space mission dedicated to astrometry, which operated from 1989 to 1993. The catalogue, published in 1997, contains the positions and parallax of more than 100 000 stars with a precision of 0.001 arcsecond ...
... created from data obtained with the science instrument on ESA’s Hipparcos satellite, the first space mission dedicated to astrometry, which operated from 1989 to 1993. The catalogue, published in 1997, contains the positions and parallax of more than 100 000 stars with a precision of 0.001 arcsecond ...
AstroMaster Series Telescopes
... needed reference material and helpful hints guaranteed to make your observing experience as simple and pleasurable as possible. Your telescope is designed to give you years of fun and rewarding observations. However, there are a few things to consider before using your telescope that will ensure you ...
... needed reference material and helpful hints guaranteed to make your observing experience as simple and pleasurable as possible. Your telescope is designed to give you years of fun and rewarding observations. However, there are a few things to consider before using your telescope that will ensure you ...
Former PARI students shine at AAS PARI Calendar
... Discovery of a Third Star in the Eclipsing Binary Star System V523 Cassiopeiae V523 Cassiopeiae is a 10th magnitude eclipsing binary where the two stars orbit each other in about 5 hours and 36 minutes. To orbit each other so fast, the two stars must be nearly in contact. Imagine our Sun being two ...
... Discovery of a Third Star in the Eclipsing Binary Star System V523 Cassiopeiae V523 Cassiopeiae is a 10th magnitude eclipsing binary where the two stars orbit each other in about 5 hours and 36 minutes. To orbit each other so fast, the two stars must be nearly in contact. Imagine our Sun being two ...
Pinpointing the Milky Way
... levels and fields of expertise. Over the 5-year mission, Gaia will yield a total uncompressed data volume of around 100 Tbytes. The satellite will have contact with the ground station once a day for an average 11 h, during which an uncompressed volume of roughly 50 Gbytes will be downlinked at a rat ...
... levels and fields of expertise. Over the 5-year mission, Gaia will yield a total uncompressed data volume of around 100 Tbytes. The satellite will have contact with the ground station once a day for an average 11 h, during which an uncompressed volume of roughly 50 Gbytes will be downlinked at a rat ...
PACS Test Facility Capabilities – Cryogenics and OGSE
... and optical focus dummy Autocollimator telescope with digital camera aligned with cryostat Additional prism optics mounted to observe through both windows simultaneously 2nd cryogenic reproducibility test planned for June / July Preliminary results (after 1st run): ...
... and optical focus dummy Autocollimator telescope with digital camera aligned with cryostat Additional prism optics mounted to observe through both windows simultaneously 2nd cryogenic reproducibility test planned for June / July Preliminary results (after 1st run): ...
ARGOS - The Laser Guide Star System for the LBT
... capabilities of LUCIFER, the instrument for which it is primarily conceived. Indeed, it is the increase in speed (to reach a given signal-to-noise) for LUCIFER‟s wide field MOS capability that makes GLAO such a compelling choice for the LBT. The complementarities of this combination to currently op ...
... capabilities of LUCIFER, the instrument for which it is primarily conceived. Indeed, it is the increase in speed (to reach a given signal-to-noise) for LUCIFER‟s wide field MOS capability that makes GLAO such a compelling choice for the LBT. The complementarities of this combination to currently op ...
High-order wavefront sensing system for PALM-3000 Christoph Baranec
... The entrance to the wavefront sensor will be fitted with a field stop that will also function as a spatial filter11. The spatial filter consists of two blades forming a square aperture which can be adjusted remotely in size via a piezo-electric flexure mechanism. An early version of the spatial filt ...
... The entrance to the wavefront sensor will be fitted with a field stop that will also function as a spatial filter11. The spatial filter consists of two blades forming a square aperture which can be adjusted remotely in size via a piezo-electric flexure mechanism. An early version of the spatial filt ...
THE STAR FORMATION AND NUCLEAR ACCRETION HISTORIES OF NORMAL GALAXIES
... of the composite AGES galaxy X-ray spectrum, we estimate that one soft, hard or total band count corresponds to 1.05 × 10−15 erg cm−2 s−1 , 3.65 × 10−15 erg cm−2 s−1 and 2.14 × 10−15 erg cm−2 s−1 , respectively, for an on-axis source with a 5 ks exposure time. 2.2. The Galaxy Sample For our stacking ...
... of the composite AGES galaxy X-ray spectrum, we estimate that one soft, hard or total band count corresponds to 1.05 × 10−15 erg cm−2 s−1 , 3.65 × 10−15 erg cm−2 s−1 and 2.14 × 10−15 erg cm−2 s−1 , respectively, for an on-axis source with a 5 ks exposure time. 2.2. The Galaxy Sample For our stacking ...
The Hubble Space Telescope
... Hubble’s designers packed it with sensitive instruments that would be able to see things the naked eye cannot. As the telescope took shape, it began to look like a tin can covered with aluminum foil. That is because Hubble is coated with blankets of Teflon, aluminum, and other protective layers that ...
... Hubble’s designers packed it with sensitive instruments that would be able to see things the naked eye cannot. As the telescope took shape, it began to look like a tin can covered with aluminum foil. That is because Hubble is coated with blankets of Teflon, aluminum, and other protective layers that ...
Direct Imaging of Exoplanets - American Museum of Natural History
... and gravitational lensing are more productive than direct imaging. Remarkably, these techniques, including astrometry and direct imaging, perform nearly independent roles for exoplanet science, so each of them is valuable. Radial velocity has been very successful in measuring masses and periods of p ...
... and gravitational lensing are more productive than direct imaging. Remarkably, these techniques, including astrometry and direct imaging, perform nearly independent roles for exoplanet science, so each of them is valuable. Radial velocity has been very successful in measuring masses and periods of p ...
2006 04 LAAS Bulletin I.pub
... few months it had come within 5.7 million miles of the earth, then after passing the earth it approached the sun just within earth’s orbit before roaming out just beyond Jupiter’s orbit. Fig 5: The Foucault 80 cm (31.5 inch) reflecting telescope at the Marseilles Observatory. Foucault invented the k ...
... few months it had come within 5.7 million miles of the earth, then after passing the earth it approached the sun just within earth’s orbit before roaming out just beyond Jupiter’s orbit. Fig 5: The Foucault 80 cm (31.5 inch) reflecting telescope at the Marseilles Observatory. Foucault invented the k ...
New results on a Cn2 profiler for GeMS
... the local gradient of the wavefront phase aberration measured at the ground level using SH-WFS [4][5][11]. As GeMS already complies with several WFSs and several guide sources, the SLODAR implementation was straightforward. Three main modifications to the classical SLODAR approach are however requir ...
... the local gradient of the wavefront phase aberration measured at the ground level using SH-WFS [4][5][11]. As GeMS already complies with several WFSs and several guide sources, the SLODAR implementation was straightforward. Three main modifications to the classical SLODAR approach are however requir ...
Optronic Laboratories, Inc. The OL Series 730
... manufactures a large range of telescope, microscope and imaging optic modules for radiance measurements To illustrate a typical system for radiance measurement, we will use the OL Series 730-9 Telescopes ...
... manufactures a large range of telescope, microscope and imaging optic modules for radiance measurements To illustrate a typical system for radiance measurement, we will use the OL Series 730-9 Telescopes ...
User`s Manual (Updated 9
... In designing the error sensor our principal aim was to maximize its overall throughput, so that for any given guide star the highest correction rates could be achieved. The generic design concept follows the successful implementation of the tip-tilt correcting system HR-CAM at the CFHT. This design ...
... In designing the error sensor our principal aim was to maximize its overall throughput, so that for any given guide star the highest correction rates could be achieved. The generic design concept follows the successful implementation of the tip-tilt correcting system HR-CAM at the CFHT. This design ...
Celestron Dacl"fl"c ...the world`s leading manufacturer the Celestron
... The School - One telescope ...
... The School - One telescope ...
design for the TMT mid-infrared adaptive optics system
... At mid-infrared wavelengths ground-based observations are background-limited and the observing time to reach a fixed signal-to-noise ratio on point sources for a telescope at the diffraction limit decreases with the fourth power of the telescope diameter. At these wavelengths, the 30-meter TMT teles ...
... At mid-infrared wavelengths ground-based observations are background-limited and the observing time to reach a fixed signal-to-noise ratio on point sources for a telescope at the diffraction limit decreases with the fourth power of the telescope diameter. At these wavelengths, the 30-meter TMT teles ...
December 2011
... In the middle of this month, around 6th to 19th December, there will 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 ...
... In the middle of this month, around 6th to 19th December, there will 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 ...
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).