... Next: The PROS Big Up: Software Systems Previous: Data Reduction Software . ... The srcinten task provides PROS users with a tool to compute count rates for point sources in the ROSAT High Resolution Imager (HRI). ... Corrected upper limits are cited at locations where the count rate falls below the source detection threshold. ... Srcinten is a new PROS task that computes and applies the above correction factors to the net counts in a user-specified aperture. ...

... Telescopes ћ Binoculars ћ Microscopes . Meade Ultra-High Transmission coatings (UHTC ) Group . ... Meade Standard Coatings: The optical surfaces of all Meade telescopes include high-grade optical coatings fully consistent in quality with the precision of the optical surfaces themselves. ... These specialized, and extremely advantageous, coatings are offered here as the Meade Ultra-High Transmission Coatings (UHTC) group, a coatings group available optionally on many Meade telescope models. ...

The Swan. The Swan is a constellation in the form of a crist from the bright star in the Milky Way. The Babilonian called it "The Wood Bird", the arabs - "The Hen" and the Greeks caaled it the Swan. According to the myth Zevs in the image of the Swan tempted the wife of the Sparta tzar Leda and she bore a beautiful Elena and the celestial twins Castor and Polidevk. ... The Swan's bright star Deneb with Vega ( a of Lira) and Altair ( a of Eagle) forms an autumn-summer triangle. ...

... 2002 March 7 . Comet Ikeya-Zhang Brightens . ... Explanation: In the last week , Comet Ikeya-Zhang has become bright enough to be just visible to the unaided eye. Based on its present activity, observers are optimistic that Ikeya-Zhang will become substantially brighter. This composite color image from March 3rd, captured with a wide-field telescope, shows this active comet's bright, condensed coma and a delightful array of subtle structures in its developing tail. ... About APOD | ...

. Next: About this document ... Up: Part IV Extragalactic Astronomy Previous: Magnitudes . Sky brightnesses in magnitudes per square arcsecond. This data is from Siding Spring observatory - other observatories will be comparable or worse. U . B . V . R . I . J . H . K . Kn . Dark Sky . 22.8 . 22.5 . 21.5 . 20.8 . 19.3 . 6-day Moon ... 21.3 . 20.8 . 20.4 . 19.2 . Full Moon ... 18.8 . 18.5 . 18.9 . 18.2 . 15.0 . 13.7 . 12.5 . 13.7 . Paul Francis . 1999-03-09

... Satellite data ] . SMIS ] . The program is designed to process the specific AVHRR instrument data for calculation and analysis of temperature fields on the sea surface and upper level of clouds. It performs brightness correction for visible channels with regards to clouds altitude. ... The program features a wide variety of classification algorithms (including two-dimensional histogram analysis) and enables to construct personal procedures for classification. ... Back to SMIS Home Page . ...

According to observations by NASA's Chandra X-ray Observatory and ground-based optical telescopes, the supernova SN 2006gy is the brightest and most energetic stellar explosion ever recorded and may be a long-sought new type of explosion. The bottom left panel is an infrared image, using adaptive optics at the Lick Observatory, of NGC 1260, the galaxy containing SN 2006gy. ... X ray: NASA/CXC/UC Berkeley/N.Smith et al.; Infrared: Lick/UC Berkeley/J.Bloom & C.Hansen ...

... Package . Class . ... PREV PACKAGE NEXT PACKAGE . FRAMES NO FRAMES All Classes . Class Summary . ... Displays the ImageJ Channels window. ... Implements the Image/Color/Color Picker command. ... This plugin implements the Brightness/Contrast, Window/level and Color Balance commands, all in the Image/Adjust sub-menu. ... ImageJ plugin that does curve fitting using the modified CurveFitter class. ... Implements ImageJ's Paste Control window. ... This is ImageJ's macro recorder. ...

National Research Institute for Physical-Technical and Radio Engineering Measurements IMPROVEMENT OF THE SOFTWARE BERNESE FOR CALCULATION OF THE EARTH ROTATION PARAMETERS ACCORDING TO THE DATA OF SATELLITE LASER RANGING (LAGEOS 1, LAGEOS 2) IN THE MAIN METROLOGICAL CENTRE OF THE STATE TIME AND FREQUENCY SERVICE Tsyba E. N., Kaufman M. B. 141570, Mendeleevo, Moscow region, Russia tel. +7-903-194-7575; tsyba_e_n@mail.ru ABSTRACT Preparatory ...

NAUTICAL ASTRONOMICAL YEARBOOK for 2017 (in Russian) . Foreword . ... NAY) is the daily visual geocentrical equatorial ephemerides of brightest navigational stars ? the Sun, the Moon, four major planets (Venus, Mars, Jupiter, Saturn) and of the 69 brightest stars, and the time of the rising and setting of the Sun and the Moon, the time of the beginning and the end of civil and navigational twilights, the azimuths of the upper limb of the Sun on rising and setting. ...

... Einstein data for SNR are available as images on magnetic tape or diskette and as tables of counting rates. ... In seven cases, with coverage from 35% to 90%, we have calculated an HRI rate for the entire SNR by using the observed IPC data and assuming the ratio of HRI to IPC rates was the same for the observed and the unobserved parts of the remnant. ... Positions of the bright bulge sources and remnants in the galactic plane are known and the rates in table 2 are free of the effects of these. ...

Russian SHAREABLE DATA CENTER Institute of Solar-Terrestial Physics SB RAS . ... The real-time radiosignals characteristics calculation algorithm from current VS data is carried out according to the following scheme (V.P.Grozov ,G.V.Kotovitch,V.E.Nosov,S.N.Ponomartvhuk, S.V.Pushkarev,L.P.Sergeeva,V.V.Khakhinov. Real time decameters radio systems characteristics calculation by ionosphere vertical sounding data. ... ionogram and calculation results display on monitor; . ...

You Can Make Stellar Images Brighter . Articles | ... A few months ago I wrote an article titled "You Can’t Make Them Brighter". So why am I now writing that you can make them brighter. ... The image of a focused star is actually a small disk called the Airy disk, named after the 19 th century scientist Sir George Airy. ... For a given aperture, a smaller Airy disk means that the light is focused to a smaller disk and is therefore brighter. ... www.astronomy.net . About Astronomy Net | ...

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... Развивающая игрушка Лягушка Bright Starts привлечет ребенка красочным видом, подарит новые ощущения и вскоре станет любимой игрушкой, приятной и веселой. ... Цвет: розовый . ... Цвет: Коричневый . ... Цвет: натуральный . ... Кружка имеет силиконовую крышку оранжевого цвета с прорезью для питья. ... Цвет: синий . ...

. Comment on J0318+4151 . No detection: according to global VLBI observations at 5 GHz by Xu, O'Dea & Biretta (1999), the core of this double-tail radio galaxy has a brightness of 13 mJy/beam, too weak for us to be detected. VLBApls home page . Last modified: 16 Oct 2000

... About meteorites . ... Meteorite Encyclopedia . ... About laboratory . ... On the night of September 24-25, in the north of Irkutsk Oblast, local residents saw a brightly glowing space object draw a line across the sky and fall into the taiga. ... But scientists learned of the heavenly visitor only on October 3, when a fax arrived at the Institute of Sun And Earth Physics from Bodaibo. ... The first thing we did was to interview residents of villages located along the meteor's flight path. ...

A team of U.S. and German astrophysicists have made the first ever detection of X-rays coming from a comet. ... Following the initial detection, the team reported repeated X-ray emissions from the comet over the next 24 hours. ... One preliminary theory is that X-ray emission from the Sun was absorbed by a cloud of gaseous water molecules surrounding the nucleus of the comet, and then were re-emitted by the molecules in a process physicists call "fluorescence." ... Comets . ...

... Bad Astronomy . Misconceptions . ... Bad Astronomy : "That's as remote as the dark side of the Moon!" ... As the tired, hackneyed refrains went on, one in particular caught my ear: " Fly me away to the bright side of the moon, and meet me on the other side." ... As the Moon orbits the Earth, different parts of it get illuminated by the Sun. ... Bad Addendum : At the end of the album "Dark Side of the Moon" by Pink Floyd, there is a voiceover that actually says "There is no dark side of the moon. ...

New reduction of minor planets photographic plates obtained with Pulkovo Normal Astrograph A.A. Berezhnoy Pulkovo Observatory of RAS, Saint-Petersburg, Russia Minor Planet observations at Pulkovo Periodical observations of 14 bright asteroids named Selected Minor Planets (SMP) were performed at Pulkovo since 1948 within the international framework started by works of B.V. Numerov and D. Brouwer. ... 108 133 113 74 124 67 97 88 14 84 64 5 20 19 Epochs (YYYY.MM) 1200 Mean values of total obs. ...