... разработка теории и методов расчета лучевых дифференциалов первого, второго и третьего порядков в градиентных оптических системах; . ... разработка методов расчета геометрических аберраций второго и третьего порядка осесимметричных оптических систем, содержащих асферические поверхности и градиентные среды типа "псевдоаксикон"; . ... получены формулы для расчета смещения изображения и геометрических аберраций второго порядка в градиентных оптических системах с малыми нарушениями осевой симметрии; . ...

. Home . Structure of Data . Description . Catalog . Publications . VO . ЮБ 2000 . 05:47:28.6 . ЮД 2000 . +35:25:56 . l . 174.645 . b . 3.703 . diameter . 4.0' . (m - M) 0 . 11.54 0.3 . distance . 2000 300 pc . E(B - V) . 0.81 0.25 . log(t) . (J, J-H) isochrone VOTable . 2MASS data VOTable . IPHAS IDR data VOTable . Developed by the Team . Send us your questions or feedback

... The NICMOS data reduction and calibration pipeline employs file formats and software architecture techniques that are new and different from what has been used for previous HST instruments. This paper describes the FITS file format used for NICMOS data, which includes error estimate and data quality arrays for each science image, and describes the approach used to associate multiple observations of a single target. ... This group of five data arrays is called an image set, or ``imset'' for short. ...

... OEM COMPONENTS . ... OEM OPTICAL COMPONENTS . ... Objective, Plan Achromatic, 4 X 0.12, BF . ... Objective, Flatfield Achromatic, 20 X 0.40, BF . ... Objective, Flatfield Achromatic, 60 X 1.00-0.70, Oil, Iris, BF . ... Objective, Flatfield Achromatic, 100 X 1.25, Oil, BF . ... Q-Plan™ Achromat Objective, 2.5 X 0.08, BF . ... Q-Plan™ Achromat Objective, 50 X 1.0-0.70, oil, iris, BF/DF . ... Q-Plan™ Achromat Objective, 100 X 1.25, oil, BF . ... Q-Plan™ Achromat Objective, 100 X 1.30, oil, iris, BF/DF ...

1927: 5.21 inches . 1911: 4.91 inches . 1986: 4.65 inches . ... 5 years: 1919 -- 1924: 15.60 inches . 10 years: 1911 -- 1921: 27.05 inches . 15 years: 1912 -- 1927: 36.72 inches . 20 years: 1911 -- 1931: 46.83 inches . 1993: 0.00 inches . 1975: 0.00 inches . 1965: 0.00 inches . ... 5 years: 1988 -- 1993: 3.23 inches . 10 years: 1989 -- 1999: 11.05 inches . ... 15 years: 1909 -- 1919: 23.25 inches . ... 20 years: 1901 -- 1921: 53.32 inches . To the Weather Page . ...

pcyg_00072_V_df.fits TARGET = 'P Cygni ' / target EXPTIME = 1. / exposure time ( seconds ) FILTER = ' (3) V (490-580) ' / filter DATE-OBS = ' 2012-11-21T23 :37:36.580' / date of observation (UT) pcyg_00073_V_df.fits TARGET = 'P Cygni ' / target EXPTIME = 0.25 / exposure time ( seconds ) FILTER = ' (3) V (490-580) ' / filter DATE-OBS = ' 2012-11-21T23 :38:59.629' / ...

... For reliable estimation of the accuracy of asteroid CCD observations we usually consider from ten or more various NUMBERED MINOR PLANETS (NMPs) observed during several nigths per month (more then 50 positions). ... They can be considered as an indicator of accuracy of the CCD positional observations with given MPC code. ... For any NUMBERED minor planet the (O-C) values must be zero if the errors of observations and the errors of its theory are absent. ...

... Imaging GRIN Rod Lens (HAG's) | Relay Rod Lens (LAG's) | ... The Refractive Index Distributions (RID) in GRIN lens preforms are made by multi-stage optimized ion-exchange diffusion between silicate mineral glasses and salt melts. ... In the LAG lenses - L ow A perture GRIN the nature of the changing of refractive index in glass via ion-exchange lies mainly in molecular volume increase. ... LAG lenses are specially treated to create the dark anti-flick surface coating (Fig.2). ...

Next: A Coronagraphic Search for Up: NICMOS Science Previous: NICMOS Science . ... A search for previously unknown low-mass (giant planet and brown dwarf) companions to stars in the solar neighborhood, and circumstellar dust disks around main sequence stars by direct coronagraphic imaging has been undertaken by the NICMOS Instrument Definition Team (IDT). ... The problem in the target acquisition process resulted in degraded pointing and target centration performance for these observations. ...

... The Magazine . ... Get to Know the Night Sky . ... Cosmic particle accelerators get things going . Cluster has shown that narrow shocks may be vital to kick-starting the acceleration process in exploding stars, young stars, black holes, and whole galaxies. ... For example, the Large Hadron Collider at CERN employs a series of small accelerators to get its particles up to speed before injecting them into the main 17-mile-circumference (27 kilometers) ring for further acceleration. ...

... Comets and Asteroids . ... Earth Satellites . ... Illustration of how NASA could capture an asteroid . ... The meteor was quite small compared to some of the objects out there that could potentially hit the Earth, thus if we understood asteroids it could be potentially life-saving! ... This mission could start as soon as the early 2020s with NASA already simulating an asteroid mission to figure out how astronauts might undertake a spacewalk on it. ... Can NASA lasso an asteroid back to Earth? ...

Astronomical Society of the Pacific Conference Series-Instructions for Authors Using Microsoft Word Lisa B. Roper and Enid L. Livingston Astronomical Society of the Pacific Conference Series, N221 ESC, Brigham Young University, Provo, Utah 84602-4463, USA J. Ward Moody Department of Physics and Astronomy, Brigham Young University, N484 ESC, Provo, Utah 84602-4463, USA Abstract. ... Please use only the included styles to format your paper. ... Within parentheses use "(Author 1 & Author2 1999)". ...

... Home Articles A History of the First Forty Years of the Amateur Astronomers Association . ... Beyond New York City . ... A History of the First Forty Years of the Amateur Astronomers Association . ... At the 35th Anniversary Dinner of the Amateur Astronomers Association, I had been asked to give a talk on the history of our society. ... The Amateur Astronomers Association had a past even before it began. ... 2016 Amateur Astronomers Association of New York Designed by Press Customizr Powered by . ...

... Mir treffen eis all Иischte Samsden am Mount fir ze beobachten. ... Wou mir eis treffen: Dippach-Gare . ... Wou mir eis treffen: Donatuskapell Beidweiler . ... Wou mir eis treffen: Parc Leh Dudelange . ... Wou mir eis treffen: Dippach-Gare / cot. ... Wou mir eis treffen: Clubraum DiddelИng . ... Wou mir eis treffen: Dippach-Gare um Parking. ... Wou mir eis treffen: NaturmusИe . ... Wou mir eis treffen: Parc LИi zu DiddelИng . ... Wou mir eis treffen: Eise ClubrДum an der Deichschoul zu DiddelИng . ...

The Astronomy Net . Articles | ... Forums . ... Planets | ... The list below is a live snapshot of where the planets and moon are located right now. ... The links in the left hand column take you to a mirror of the excellent NinePlanets web site where you can read about each planet and much much more. The latest news includes the fact that Pluto is no longer classified as a planet. ... Pluto is now classified as a 'dwarf planet' which includes Ceres and soon to be many others. ... 100 . ...

... European Southern Observatory at Site 2010 Kislovodsk Collaboration University of Lethbridge, Canada ­ R. Querel, D. Naylor, G. Tompkins U. Valparaiso ­ A. ChacСn, O. Cuevas, M. Cure, L. Cortes, M. Caneo, L. Illanes ­ J. ThomasOsip, G. Prieto ­ A. OtАrola, M. SchЖck, T. Travouillon ­ R. Hanuschik, M. Sarazin, C. Guirao, G. Avila, G. Lo Curto, I. Saviane, A. Pizarro, G. Ihle, J. Navarette, A. Smette, D. Rabanus Site 2010 Kislovodsk, Oct 5th, 2010 2 GMT, Las Campanas TMT ESO F. Kerber et al. ...

... 000, 1­12 (2009) Printed 11 February 2010 A (MN L TEX style file v2.2) Analytical approximations of K -corrections in optical and near-infrared bands I1gor V. Chilingarian1 2 ,2,3 , Anne-Laure Melchior 1,4 and Ivan Yu. ... Received 2010 February 01; in original form 2009 August 14 ABSTRACT To compare photometric properties of galaxies at different redshifts, the fluxes need to be corrected for the changes of effective rest-frame wavelengths of filter bandpasses, called K -corrections. ... Table 1. ...

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