... We present an analysis of an optical blue spectrum of the pulsating helium star V652 Her (=BD+13 3224$) in order to determine its effective temperature, surface gravity and chemical composition. ... The surface composition is characterised by abundances of nH=0.009, He=0.988, nC~0.000040, nN=0.0025 and nO=0.00010 (number fractions). ... If V652 Her was formed by the merger of two white dwarfs, its surface composition demands that they should both be helium white dwarfs. ...

... Class . ... java.lang.Object ij.ImagePlus ij.CompositeImage . ... public class CompositeImage . ... CompositeImage ( ImagePlus imp, int mode) . ... Copies the LUTs and display mode of 'imp' to this image. LUT . ... public CompositeImage ( ImagePlus imp, int mode) . ... public void setLuts ( LUT [] luts) . ... Does nothing if 'imp' is not a CompositeImage or 'imp' and this image do not have the same number of channels. public void reset () . ... public void setChannelLut ( LUT table, int channel) . ...

... Многоапертурный детектор атмосферных мерцаний (MASS) разработан для продолжительного мониторинга параметров оптической турбулентности в свободной атмосфере на существующих обсерваториях и при выборе мест для новых обсерваторий. ... The Multi-Aperture Scintillation Sensor (MASS) is intended for continuous monitoring of free atmosphere parameters at different observatories and potential observational sites. ... Mainly, the site is designed for Sternberg Astronomical institute MASS group itself. ...

... NASA Lunar Orbiter . ... The Lunar Prospector is designed for a low-polar orbit investigation of the Moon, including mapping of surface composition and possible polar ice deposits, measurements of magnetic and gravity fields, and study of lunar outgassing events. Data from the 1- to 3-year mission will allow construction of a detailed map of the surface composition of the Moon, and will improve our understanding of the origin, evolution, current state, and resources of the Moon. ...

... Тертышников А.В. ( atert@mail.ru ) . ... Скрипачев В.О., Скребушевский Б.С., Долгих Н.А. "Анализ возможности космического мониторинга объектов ядерного топливного цикла", Исследование Земли из космоса. ... Полушковский Ю.А., Тертышников А.В., Зубков И.А., Платонов В.В., Скрипачев В.О. "Применение методов математической статистики к анализу предвестников землетрясений, возможных для наблюдения из космоса", Современные проблемы дистанционного зондирования Земли из космоса. ... Сборник научных статей. ...

... News . ... Read Mark BosloughУ?т??т??s blog on the Jupiter impact . ... New model reconciles the Moon's Earth-like composition with the giant impact theory of formation . ... However, a major challenge to the theory has been that Earth and the Moon have identical oxygen isotope compositions, even though earlier impact models indicated they should differ substantially. ... Only registered members of Astronomy.com are allowed to comment on this article. ... Oldest to newest . ... LATEST NEWS . ...

... By admin July 22, 2013 Posted in: Comets and Asteroids . On 30 April 2013, NASA?s Hubble Space Telescope observed Comet ISON. ... Comet ISON imaged by Damien Peach on 24 September 2013. ... If you cannot see Comet ISON why not try to find the other near-naked eye comet currently in the sky, C/2013 R1 Lovejoy? ... It is now impossible to see this dead comet, but during December 2013 the remains of Comet ISON will be in both the morning and evening sky as it races through the constellations. ...

... НОВОСТИ CASTROL ! ... Решение 1: AircomaticR III/Airco-CleanR обработка. AircomaticR III/Airco-CleanR обработка: Очистка всей системы вентилирования автомобиля: . ... Решение 2: AircomaticR III Ozonizer/Air Purifier обработка. The AircomaticR III Ozonizer/Air Purifier обработка: . ... Этап 1: AircomaticR III Ozonizer. ... Специалисты АвтоТехЦентра AD REM всегда находятся в Вашем распоряжении по всем вопросам ремонта и эксплуатации Вашего автомобиля! ... 2006 AD REM SRL . ...

... MAISON ( Multi-wavelength Astronomical Image Service On-line ) is a Web broker service which allows users to retrieve different images of the same field-of-view (FOV) from separate image servers. Through MAISON, users can readily preview a composite image created on-the-fly from these multiple images. ... Pointing observation images are searched for within a finite area on the sky centered at the users' specified location, thus generally have different FOVs. ... The image viewer . ...

ATM Forum Message . Forums: . ... Amateur Telescope Making | Post . ... Convex Mandrell . ... Post Message | ... I am looking at making a convex mandrel for a composite mirror project. On a search of the forum, I noticed that making a convex mirror is easy, but testing it is more difficult. ... www.astronomy.net . About Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

. Galaxy and four QSO images; SPIcam data with FWHM = 0.77" PSF. (Blow-up shown below). Close-up of QSO images (Circle enclosing 4 images has a radius of 0.9".) Data obtained by Camron Hastings for the APO-PU Gravitational Lens Monitoring Project. Image processing by Dan Long and Ed Turner.

... Under certain conditions, like those in the nucleus of a QSO, all atoms can be made to emit light at particular wavelengths. ... If that source is approaching the observer, the wave is squashed up onto itself making the wavelength shorter. ... This is redshift. ... You can see how the section of the QSO spectrum which we observe changes with redshift. ... We then see how far we had to slide the observed spectrum along the scale to make it match and that is the objects redshift. ... The 2QZ team . ...

... Роман Евгеньевич Ильинский email : ilinsky_r@mail.ru . ... Ильинский Р. Е., Ровенская Т. С. Дифференциалы луча в оптической системе // Вестник МГТУ. ... 1998.- ... Roman Ilinsky , Gradient-index meniscus lens free of spherical aberration, Journal of Optics A: Pure and Applied Optics, volume2, number 5, pages 449-451, year 2000 . ... Ильинский Р. Е. Определение реальных габаритов пучков в градиентных оптических системах // Прикладная оптика -2000: Тез. докл. ... 2000.- ... ROMAN ILINSKY . ...