B?rbel Koribalski ( ATNF ) . ... The Grus-Quartet consists of four large spiral galaxies which are so close to each other that they should be interacting. The high starburst activity of two of the members, namely NGC 7552 and NGC 7582, is also thought to arise from tidal galaxy-galaxy interactions and subsequent formation of a bar in the disk. ... The colour gradient is in units of Jansky/beam km/s.) . The colour gradient is in units of km/s.) . ... Baerbel.Koribalski @ csiro.au ...

... NASA S114E5070 View of the Space Shuttle Discovery's crew cabin and the Orbiter Docking System, photographed as part of the survey sequence performed by the Expedition 11 crew during the STS-114 R-Bar Pitch Maneuver on Flight Day 3. ... STS-114 Commander Eileen Collins Backdropped against a colorful part of Earth, this full view of the International Space Station was photographed by a crewmember onboard the Space Shuttle Discovery following the undocking of the two spacecraft. ...

Photon Scattering: Basic Principle of Photon Scattering . Audio Narration is available . No Scattering: Photon Source and Detector . ... For optical photons, scattering goes as wavelength to the -4 power. In the case of blue photons compared to red photons, this means that blue photons are about 10 times more likely to get scattered than red photons. ... Watch the blue photons scatter away from the detector . ... Interstellar dust make stars appear redder than they really are . ...

... title='Аксессуар Чехол Just Case for iPod Nano 7 Pink' border='0' align='left' width='120' style='margin-right: 20px;' hspace='7' vspace='5'/> . ... Материал изготовления радиатора: сталь, . ... Размер: 6.5 US - 39.0 EU . ... Материал: 55% шелк, 45% лен . ... Размер INT: L . ... Внутренний Материал: Текстиль . Материал: Текстиль . ... Подошва: Искусственный материал . ... Аксессуар Vivacase Challenge for Samsung SM-T530 / SM-T531 Galaxy Tab 4 10.1 . ...

MAIN PAGE . ... Nova Cygni August 1975! ... 1975/76: Comet West! ... Dr. Richard West (4th from left) & AAL members visiting SES Betzdorf on occasion of our club's 25th anniversary - October 1996 . Comet West Information . ... It was the brightest comet visible from Earth since Comet West in 1976. ... 1997: Comet Hale-Bopp! ... Thus Comet Hale-Bopp never got closer to Earth than Earth gets to the Sun. ... Comet Hale-Bopp JPL Page . ... 1999: Total solar eclipse over Luxembourg! ...

... Flux density at 1 GHz (/Jy): 1040 . ... Notes: This is the remnant of the SN of AD 1054. ... Optical: Strongly polarised filaments, diffuse synchrotron emission, with `jet' faintly visible. ... VLA at 1.4 GHz, radio detection of `jet'. ... Velusamy 1985, MNRAS, 212, 359. ... Aller & Reynolds 1985, ApJ, 293, L73. ... Comparison of VLA observations at 74 MHz, 327 MHz, 1.5 GHz and 5 GHz for spectral index studies. ... VLA at 5 GHz (1".4) and HST multi-epoch observation for proper motion studies. ...

... Submitted by Robert Halstead on 10/12/2010 20:35:42 . Stacked image to get longer exposure . This image was created by stacking nine 60-second exposures that were made over the course of a 30-minute period. The comet is moving through the sky quickly enough that aligning the comet in all the images causes the star images to spread out in a line. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

... to See Comet Hale-Bopp . ... An Online Viewing Guide from . Sky & Telescope . Above: Sky & Telescope 's Dennis di Cicco obtained this view of Comet Hale-Bopp before the start of morning twilight on March 12th at a dark-sky location south of Boston, Massachusetts. ... For more information about Comet Hale-Bopp, including tips on viewing it through a telescope and capturing images with conventional or electronic cameras, please see the March and April 1997 issues of Sky & Telescope magazine. ...

... Triangles come in many shapes. ... Subtracting 90њ from both sides . ... a / c = sin A -- "the sine (or sinus) of A" . b / c = cos A -- "the cosine (or cosinus) of A" . ... This statement is usually written with the square written sin 2 A (not sinA 2 , which might be taken to mean the sine of an angle equal to A 2 ): . ... The length of side a then approaches that of c , while the length of b becomes very small: therefore as A approaches 90њ, sinA approaches 1 and cosA approaches zero. ...

... The compressed inverted IZMIRAN dynamic radio spectrum in 05:50-13:00 UT interval (c) and extracted time-intensity profiles (d) at 58 MHz (right axis) and 86 MHz (left axis) display large-scale restructuring of the noise storm associated with the event: sharp weakening of the pre-existing noise storm in the 75-100 MHz range and some intensification of radio emission at lower frequencies. The horizontal stripes are interferences from TV and radio stations. ...

List of publications . ... Moscow University Press. 160 pp. ... Shevchenko V.V. A Lunar Base. Moscow. ... Shevchenko V.V., Chikmachev V.I. Lunar Base - a Project of XXI Century. ... Shevchenko V.V., Pugacheva S.G., Dehktereva K.I. Brightness Characteristics of the Infrared and Visible Radiation of the Lunar Surface. ... Problems of Complex Research of the Moon. ... Solar System Research. ... Baydal G.M., Sizentzev G.A., Sotnikov B.I., Shevchenko V.V. Lunar Base Infrastructure and Lunar Resources. ...

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... 295 Astronomical Data Analysis Software and Systems XII, eds. H. E. Payne, R. I. Jedrzejewski, & R. N. Hook (San Francisco: ASP), 411 . ... Observations by the Chandra X-Ray Observatory are made in a coordinate frame that is essentially fixed. Most objects observed with Chandra, such as supernova remnants, quasars, or pulsars, are at infinity for all practical purposes and the observations produce sharp, focused images. ... Figure 2: Jupiter in ICRS and Object Centered coordinates . ... 2002). ...

... ASRAS HOME . ... About ASRAS . ... ASRAS Board Members . Our Observing Site . Activities б /б  Star Parties . ... ASRAS holds WEEKLY and MONTHLY star parties in the Rochester area ! ... Use the parking lot behind the planetarium and the stair case to the scope is to the right before entering the back door of the planetarium. ... In addition to weekly observing sessions on the rooftop at Strasenburgh Planetarium, ASRAS holds public star parties during the months when the snow doesn't fly. ...

... Right Ascensions are tabulated in decimal degrees in the archive. This may be used with the column label RA, which conforms to the archive convention [ 5 ]. ... Fortunately, the MIDAS table commands will accept sexagesimal input (see the on-line HELP for CREATE/COLUMN and NAME/COLUMN ), in almost any human-readable form. By using the R11.6 format specification for the Right Ascension columns in the *.fmt file, existing ASCII tables can easily be converted to MIDAS table format. ...

... The following tools are available: 3.1 strbs: Star Tracker BoreSight calculation  SYNOPSIS strbs instrument = instr ra= ra dec = dec apos = apos odffixout= true |false bstoolsout= true |false  DESCRIPTION Given the prime instrument instr and its viewing direction in terms of Right Ascension and Declination of the boresight + astronomical ... REFERENCE See task epicbscalgen and cal documentation for de nition of boresight related coordinate frames. ...

Contents. planet: 5 - Jupiter satellites: Callirhoe J17 - S/1999 J 1: 20 total number: 20 type: absolute dates: 1999-2000 observatory: 687 - Northern Arizona University, Flagstaff 809 - ESO, La Silla 309 - Cerro Paranal Reference. IAU Circular No. ... Number of observer (see informations above) --------------------------------------------------------- Year alpha delta Observatory month day with Telescope decimals h m s deg ' '' Observer --------------------------------------------------------- ...

... Results of measurement of Jovian flux, enumerated on a standard distance 4.04 бе, are displayed on figure 1a. The attempt is made to divide a response of a magnetosphere of the falling comets into two parts: immediate responce during impacts and more delaed one. On figure 1b the relation of the measured flows to a relative phase is showed and the data from July 17 till July 23 are excluded. ... A shaped line - prospective sinusoidal relation of a flow to a phase. c) Flux depending on date. ...

... Meade Instruments Corporation . ... Autostar Computer Controllers . 497 Autostar . ... One of the most important advances in telescope control in the past 25 years, the Meade #497 Autostar Computer Controller turns the ETX into an automatic celestial object locating system. ... The #497 Autostar Computer Controller plugs into the control panel of ETX-90EC, ETX-105EC, and ETX-125EC telescopes and enables automatic location of more than 30,000 celestial objects. ... about meade | ... Meade 4M | ...