Astronomy Picture of the Day . Neptune in Infrared . ... 25.10.1999 . ... Neptune is the eighth most distant planet from the Sun, thirty times the Earth-Sun distance. Neptune is the fourth largest planet, almost four times Earth's diameter. ... A fascinating feature of the above photograph is that it was taken far from distant Neptune , through the Earth's normally blurry atmosphere. ... Publications with keywords: neptune - infrared . Publications with words: neptune - infrared . ...

... October 25, 1999 . Neptune in Infrared . Credit: Don Banfield ( Cornell ), JPL , NASA ; Copyright: Cornell U. Explanation: Neptune has never looked so clear in infrared light. Neptune is the eighth most distant planet from the Sun, thirty times the Earth-Sun distance. Neptune is the fourth largest planet, almost four times Earth's diameter. ... A fascinating feature of the above photograph is that it was taken far from distant Neptune , through the Earth's normally blurry atmosphere. ...

... HST . Domains of Observability in the Near-Infrared with HST/NICMOS and (Adaptive Optics Augmented) Large Ground-Based Telescopes . ... HST Peer Review Process . ... HST Overview . ... Retrieving HST Data . ... HST Science Year in Review . ... NICMOS . ... DOMAINS OF OBSERVABILTY . IN THE NEAR-INFRARED . ... HST/NICMOS . ... ADAPTIVE OPTICS AUGMENTED) LARGE GROUND-BASED TELESCOPES . A summary study solicited by STScI in preparation for HST Cycle 12 . ...

... GSAOI Home . Instrument . ... The Gemini South Adaptive Optics Imager (GSAOI) is a near-infrared adaptive optics camera that will be used with the Multi-Conjugate Adaptive Optics (MCAO) system on the Gemini South 8-m telescope . ... Gemini's major instrumentation goal is to develop its Multi-Conjugate Adaptive Optics (MCAO) system for scientific use on Gemini South. ... Existing adaptive optics systems use a single natural guide star or artifical laser guide star to measure this image blur. ...

... Guido Agapito, This email address is being protected from spambots. You need JavaScript enabled to view it. Jacopo Antichi, This email address is being protected from spambots. ... Carmelo Arcidiacono (OAB), This email address is being protected from spambots. ... Valdemaro Biliotti, This email address is being protected from spambots. ... Marco Bonaglia, This email address is being protected from spambots. ... Runa Briguglio, This email address is being protected from spambots. ...

... ATNF Home . About ATNF . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Murchison Radio-astronomy Observatory . ... Parkes radio telescope . Australia Telescope Compact Array . Mopra radio telescope . ... Australia Telescope Online Archive (ATOA) . ... Parkes | ... Australia Telescope 20GHz Survey . ... Visiting Parkes radio telescope . Visiting Australia Telescope Compact Array . ... Parkes radio telescope webcam . ...

... The IDL-based simulation software Code for Adaptive Optics Systems (CAOS) was originally developed to simulate the behavior of generic adaptive optics systems. ... We present in this paper the last version (3.0) of the CAOS Simulation Package, together with an example of an application to the Large Binocular Telescope interferometer adaptive optics system. ... Table 1 shows a complete list, together with a very brief description, of the modules of CAOS Simulation Package 3.0. ...

... Science . ... Observing Facilities . ... Observing with ESO Telescopes . ... ESO Data . ... ESO HST Image Galleries . ... Over the past ten years, the concept of adaptive optics has matured from early experimental stages to a standard observing tool now available at many large optical and near-infrared telescope facilities. ... This ESO workshop aims also at educating the general astronomical community in Europe on the unique science potential of adaptive optics for all branches of astronomy. ...

... Astrophysics Group . ... Optical Interferometry . Optical Interferometry Team Publications . SPIE 2004 Papers . ... SPIE 2000 Papers . SPIE 2002 Papers . ... SPIE 2006 Papers . SPIE 2008 Papers . SPIE 2010 Papers . SPIE 2012 Papers . Optical Interferometry Publications . ... Lucky Imaging Publications . ... The following papers were presented at SPIE?s Astronomical Telescopes and Instrumentation 2004 Symposium by members of the Cavendish team and by co-authors at MRO . ...

... Archives . ... Please, do not confuse adaptive filter (hereafter, AF ) with adaptive optics (hereafter, AO ). ... Not just the hardware part, but I was interested in how astronomers have applied theories and algorithms of AF to acquire cleaner data that are processed with speed and efficiency. ... A long story short, against my expectation for frequent allusion from ADS, adaptive filter turned out to be almost [MADS]. ... Tags: adaptive filter , adaptive optics , MADS . ... Comment ( RSS ) | ...

... smoothstyle =`adaptive'. This is exactly the same as the patchwork convolution described in section 3.3.4 , except here the task calculates the library of convolvers and the associated index image itself. ... The task actually makes two passes through the library of gaussians: the first as described above, to calculate the index image; the second refers to the index image while performing the convolution, exactly as described in section 3.3.4 . ...

Next: Comparison using a Up: Noise reduction from Previous: Adaptive filtering from . In the previous algorithm we do not use the hierarchy of structures. We have explored many approaches for introducing a non-linear hierarchical law in the adaptive filtering and we found that the best way was to link the threshold to the wavelet coefficient of the previous plane . ... and L is a threshold estimated by: . ... The function must return a value between 0 and 1. ... Mon Jan 22 15:08:15 MET 1996 ...

... Solar System . ... Comets and Asteroids . ... Vision of Vesta: a dark feature with a diameter of approximately 100 kim near the asteroid's equator can be seen in this image from Dawn (Image credit: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA) . Between Mars and Jupiter lies the Asteroid Belt. ... The Dawn space probe is expected to go into orbit around Vesta on 16 July, from there it will return some detailed images and other data, staying at the asteroid for about a year before setting off to visit Ceres. ...

WPLTN-2012 Technical Workshop Research and Experiment of Lunar Laser ranging Yaoheng Xiong, Zhulian Li, Yuqiang Li, Honglin Fu, Xiangming Zheng, Dongsheng Zhai, Yuncheng Zhang Yunnan Observatory Chinese Academy of Sciences St. Petersburg , Sep24-28 2012 LLR researchs & experiments in Kunming Overview Key problems of LLR Very long distance ranging, sub-single photon detection,.. ... St. Petersburg , Sep24-28 2012 LLR Experiments in Kunming Station Thank you ...

Computer Ephemeris. Lunar orbital data. Explanations. ... mean longitude of the Moon (degrees) . ... mean longitude of lunar node (degrees) . inclination of mean lunar equator to real equator of the Earth (degrees) . angular distance from ascending node of mean lunar equator on real equator of the Earth to ascending node of mean lunar equator on ecliptic (degrees) . angular distance from real equinox to ascending node of mean lunar equator on real equator of the Earth (degrees). ...

. Gemini adaptive optics image of 1RSX J160929.1-210524 and its likely ~8 Jupiter-mass companion (within red circle). This image is a composite of J-, H- and K-band near-infrared images. All images obtained with the Gemini Altair adaptive optics system and the Near-Infrared Imager (NIRI) on the Gemini North telescope. Gemini Observatory

... I t was long thought that Titan was the largest satellite in the solar system but recent observations have shown that Titan's atmosphere is so thick that its solid surface is slightly smaller than Ganymede's . ... R ecent observations with the Hubble Space Telescope show remarkable near infrared views of Titan's surface (right and top). ... T he observations by HST also indicate that Titan's rotation is in fact synchronous like most of Saturn's other moons. more images . ... Saturn .. ...

... The exercises are now available on the web and in six booklets (100 pages in total), titled: . ... Exercise 1: Measuring the Distance to Supernova 1987A", . Exercise 2: The Distance to Messier 100 as Determined by Cepheid Variable Stars", . Exercise 3: Measuring the Distance to the Cat's Eye Nebula" and . Exercise 4: Measuring a Globular Star Cluster's Distance and Age". ... More exercises will follow in the future. ... Exercise 3 - Measuring the Distance to the Cat's Eye Nebula . ...

... galaxies: bulges galaxies: clusters: general galaxies: clusters: individual: . ... star formation statistics stellar content structure Cosmology ( cosmology :) cosmic background radiation ( cosmology :) cosmological parameters cosmology : miscellaneous cosmology : observations cosmology : theory ( cosmology :) dark ages, reionization, first stars ( cosmology :) dark energy ( cosmology :) dark matter ( cosmology :) diffuse radiation ( cosmology :) distance scale ( cosmology :) early Universe (...

... Orbit trace geographical coordinates on the last day of flight . Predicted "landing point" coordinates . Orbit in the topocentrical c/s of the "landing point" . The local topocentrical C/S connected with arbitrary point Lp on the Earth surface: . Origin on the point Lp . ... Elevation : The SC angular distance from the local horizontal plane. ... The last day of flight is shown in the predicted "landing point" (Lp) local topocentrical coordinate system . ... INTERBALL mission  ...