Classroom Activity: Making a Rainbow . ... When white light from the Sun or a light bulb passes through a prism, the light splits into its component wavelengths. ... Red, blue, green colored filters - if possible, cut 1x4-inch pieces of the filters for each student . ... Many students have the misconception that filters somehow dye the light a certain color. ... Younger students can draw the rainbow and make up a mnemonic for remembering the order of the colors (such as, ROY G. BIV). ...

... I. Mean Surface Brightnesses and Integral Color Indices for Bars Gusev A.S. ================================================================================ Abstract: UBVRIJHK surface brightnesses and color indices of bars of galaxies are determined using surface photometry data for 100 barred galaxies (table1.dat). ... J0 Mean surface J0 brightness 46 A1 --- CI- CI sign 47 -50 F1.2 magn/sq.arcsec. U-B)0 (U-B)0 color index 52 -55 F1.2 magn/sq.arcsec. ...

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... INCLUDETEXT = NO INCLUDEGEOM = NO $!FRAMELAYOUT HEADERCOLOR = RED XYPOS { X = 1 Y = 0.25 } WIDTH = 9 HEIGHT = 8 $!FRAMEMODE = XY $!DELETEXYMAPS $!ACTIVEXYMAPS = [1-4] $!GLOBALXY DATALABELS { DISTANCESKIP = 5 } $!XYMAP [1] NAME = 'U' ASSIGN { XAXISVAR = 1 YAXISVAR = 2 } LINES { COLOR = PURPLE LINEPATTERN = DOTTED } SYMBOLS { SYMBOLSHAPE { GEOMSHAPE = DEL } COLOR = PURPLE ISFILLED = YES FILLCOLOR = PURPLE SIZE = 1.1 } BARCHARTS { COLOR = RED ...

m = -2.5log(DN/sec) + C - K*(airmass - 1.0) + A*color . ... g* and i* zero points determined by Eugene Magnier (dec 5, 1997), errors are about 10%. u*, r*, and z* are very preliminary and may have errors of 20%. filter . lambda . ... UBVI zero points determined by Ted Wyder (fall '97), about 3% internal error. filter . ... UBVI zero points determined by Dan Zucker (oct 19, 1997), about 3% internal error. filter . ... JHK Zero points determined by Eugene Magnier over several runs in 1997. filter . ...

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. This color image was obtained with Fuji color film (Super Plus 400) in focal plane of the 70-cm reflector (F = 27 m) at Lisniki Observatory by A.M.Evtushevsky. Data and time of observation: April 27, 1997, 21:25 LT. Comet-Earth distance: 1.7 a.u. Time of exposure: 10 min. Field of view : 3 minutes of arc. Distance between shells, in average: 15 000 km. Diameter of bright coma in the picture center: of about 5 000 km. Last updated: January, 2005.

... We have developed a web site using HTML, Php, Python, and MySQL that extracts, processes, and displays data from the Sloan Digital Sky Survey (SDSS) and the Two-Micron All-Sky Survey (2MASS). The goal is to locate brown dwarf candidates in the SDSS database by looking at color cuts; however, this site could also be useful for targeted searches of other databases as well. MySQL databases are created from broad searches of SDSS and 2MASS data. ... 2002). ... 2002, AJ, 123, 3409 . ...

... These colors are not only beautiful, they give us clues to the stars’ sizes, ages and life cycle status. ... While stellar life is interesting, stellar death results in many of the objects that amateur astronomers love to observe including planetary nebulae, supernova remnants and black holes. ... Dr. Russell Pinizzotto is currently the Dean of the Faculty of Science and Engineering at Merrimack College in North Andover, MA. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

... The history of star formation was successfully analyzed for the first time based on the spectra of the stellar population of dwarf galaxies of low surface brightness outside the Local Group. We have investigated the stellar population of two dwarf spheroidal galaxies KDG61 and KDG64 in the central part of a close group of galaxies M81. ... These galaxies are dominated by the old stellar population (12-14 billion years) of low metallicity ([Fe/H] ~ -1.5). ... KDG61 . ... KDG64 ...

MILLENNIUM's GIRLS Next 4 astronauts . My name is Oksana. ... I am quit interested in interior design but i am bored by history. ... I study at school.My favorite colors are black, white and gray.I am very interested in School Theater. ... My hobbies are music and reading. ... I hate rock My favorite colours are red, black, white.My hobbies are computer, tennis, music e.t.c. My favorite music group is BACKSTREETE BOY`SI am quate interested in life BSB VERY(100000000) SOI am fan BSB. ...

. Translator (English to Russian) and (Russian to English) . Russian Universities and Institutes . Directory of pub/ from SAI . Color Cods . Pixelsight . National News Service . Weather of Moscow . Information Center of Physics . Animation GIF . Radio Europe Plus . На досуге . Непридуманные высказывания . Рефераты . Equinox .

. F IGURE . 8. Relations between GC parameters and the horizontal-branch color index. The open circles correspond to the old halo, filled circles to the young halo (large filled circles correspond to clusters with (B-R)/(B+V+R)>0.32 ), and filled triangles to the corona. discussion in the text | privious figure | next figure .

Russian SHAREABLE DATA CENTER Institute of Solar-Terrestial Physics SB RAS . ... Here we present the ionospheric parameters variations for quiet conditions. ...

. Russian Version [MS-Win] . [ News ] . [ Satellite data ] . [ SMIS ] . [ ] . IBM PC compatible personal computer with the following minimal required technical features: . CPU: 80386 and higher . not less than 4 MBytes memory . not less than 100 MBytes hard drive . at least Super VGA (256 colors) video system . The interface card complies with ISA standards and can be plugged into any IBM-compatible personal computer. Back to SMIS Home Page .

University Satellites and . Space Science Education . ... Anaglyph method of a visual perception of 3-D images consists of: - simultaneous presentation of the complement images of stereomate (left image of the red color, right image of the blue color); - next following visual perception of these images through the left red filter and through the right blue filter. ... A stereomate of the anaglyph images is projecting to the screen from display of digital photogrammetric equipment. ...

The revision of the MASS/DIMM star catalogue N. Shatsky, V. Kornilov March 16, 2008 Abstract The compilation of the (updated) version of the MASS (MASS/DIMM) device target catalogue is described. ... Then the list was cleaned according to following criteria: I. Remove stars too faint for a MASS device. ... Here the color equation of the Sternb erg device was taken: M AS S mag = V mag + 0.45 (B - V ); stars with M AS S mag > 3.2 were removed. ... This was made based on the GCVS4.2 catalogue data. ...

. Here it seems you see only diffuse top clouds. But actually i'd like to show you the optical effect known as "Glory". It consists in formation of colored circles around the shadow of the plane . hovering under the clouds.

яЛП . PubliУ? le 25/10/2011 par Didier Tellier . Lieu : st remy au bois . MatУ?riel de prise de vue : camera orion v2 pro color telescope de 254 Mm sur monture eq6 pro goto .

... arXiv.org . ... Here we present and analyse the properties of an updated sample of 37 ULP Cepheids observed in galaxies within a very large metallicity range of 12+log(O/H) from ~7.2 to 9.2 dex. ... The Origin of Color Gradients in Early-Type Systems and Their Compactness at High-z . ... Multiwavelength Observations of Markarian 421 in 2005 - 2006 . ... In addition to this, the well-sampled spectral energy distribution of Markarian 421 (1101+384) is presented for three different activity levels. ...