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Technonlogy Photometric
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Photometric Redshift $70.1 High Quality Content by WIKIPEDIA articles A photometric redshift is an estimate for the distance of an astronomical object, such as a galaxy or quasar. The technique uses photometry (that is, the brightness of the object viewed through various standard filters, each of which lets through a relatively broad spectrum of colours, such as red light, green light, or blue light) to determine the redshift, and hence, through Hubbles law, the distance, of the observed object. The technique relies upon the spectrum of radiation being emitted by the object having strong features that can be detected by the relatively crude filters. The technique was developed in the 1960s, but was largely replaced in the 1970s and 1980s by spectroscopic redshifts, using spectroscopy to observe the frequency (or wavelength) of characteristic spectral lines to see how far the lines were shifted from their usual position. The technique has come back into vogue as a result of large sky surveys conducted in the late 1990s and early 2000s which have detected a large number of highredshift objects. Author: Surhone, Lambert M./ Timpledon, Miriam T./ Marseken, Susan F. Binding Type: Paperback Number of Pages: 92 Publication Date: 2010/07/29 Language: English Dimensions: 6.00 x 9.00 x 0.22 inches |
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Vilnius Photometric System $74.88 Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The Vilnius photometric system is a mediumband sevencolour photometric system (UPXYZVS), created in 1963 by Vytautas Strai ys and his coworkers. This system was highly optimized for classification of stars from ground based observations. The system was chosen to be mediumband, to ensure the possibility to measure faint stars. The temperature classification of earlytype stars is based on Balmer jump (Balmer discontinuity). To measure it one must have two bandpasses placed in the ultraviolet, one beyond the Balmer jump (U magnitude) and another after the jump (X magnitude). The Y bandpass is near the breakpoint of the interstellar extinction law (interstellar extinction in the 300800 nm region can be approximated by two straight lines, which intersect at 435.5 nm). Author: Surhone, Lambert M./ Tennoe, Mariam T./ Henssonow, Susan F. Binding Type: Paperback Number of Pages: 96 Publication Date: 2011/02/25 Language: English Dimensions: 5.98 x 9.02 x 0.23 inches |
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AAM82005 V100 Photometric Headlight Aimer $2148.73 Built in digital display for easy step by step instructions. Uses laser alignment technology no alignment visor needed. Meets or exceeds SAE J599 and J600 specifications approved in all states and Canada. Uses rechargable NiCad batteries. Easy to use simple three step aiming process. The award winning Hoppy Vision 100 Photometric Aimer is the aimer of choice among automotive technicians. It s dependable easy to use and affordable. The Vision 100 is portable and is designed for multiple bay use with minimal adjustments required. |
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Photometric Atlas of Northern Bright Galaxies $201.83 No Synopsis Available |
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Photometric Systems : Photometric System, Sloan Digital Sky Survey, Photometry, Color Index, 2mass, Vilnius Photometric System $8.57 No Synopsis Available |
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Photometric Determination of Traces of Metals, 4th Edition , Volume 1, Part 2B, Individual Metals Magnesium to Zikconium, 4th Edition $594.75 No Synopsis Available |
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Photometric and Spectroscopic Binary Systems: Proceedings of the NATO Advanced Study Institute Held at Maratea, Italy, June 1-14, 1980 $349.05 No Synopsis Available |
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WAC Lighting R6VT-29MH-WT White 6 Step Baffle Metal Halide Recessed Lighting Trim $31.5 WAC Lighting R6VT-29MH 6" Step Baffle Metal Halide Recessed Lighting TrimFeatures:Trim for Metal Halide ED17P or PAR38 Lamps. Trims are full reflector design and provide excellent glare control and superior photometric performance |
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SLI Lighting Flourescent Bulb, T5 Size, 54W, 48, Cool White. Carton of 25 $155.81 Manufacturer: SLI Lighting. Carton of 25. 54 watt, mid color, high output fluorescent tube enhances both cool and white colors. This tri-phosphor, high-efficiency, slim fluorescent T5 tube offers superior colorimetric, photometric and lumen maintenance pe |
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SLI Lighting Flourescent Bulb, T5 Size, 54W, 48, Cool White(Pack of 1) $551.73 SLI Lighting Flourescent Bulb, T5 Size, 54W, 48", Cool White54 watt, mid color, high output fluorescent tube enhances both cool and white colors. This tri-phosphor, high-efficiency, slim fluorescent T5 tube offers superior colorimetric, photometric a |
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Unico SpectroQuest UV-Visible SQ2802A Spectrophotometer $6211.77 Features of the Unico SpectroQuest UV-Visible SQ2802A Spectrophotometer: Wavelength Range: 190 - 1100 nm. Spectral Bandwidth: 1.8 nm / 0.5, 1, 2, 5 nm. Monochromator: Single beam Littrow type, grating 1200 lines/mm. Wavelength Accuracy: ±0.3 nm. Wavelength Repeatability: ±0.2 nm. Wavelength Calibration: automatic at start. Light Source: Tungsten Halogen/Deuterium Lamp. Detector: Solid Silicon Photodiode. Photometric Readout: 1/4 VGA 320X240 pixels backlit LCD. Photometric Range: 0 - 200%T -0.3 - 3.0A 0 - 9999C. Photometric Accuracy: ±0.3%T. Zero Drift: < 0.002A per hour after warm-up. Baseline Flatness: ±0.004A. Stability: 0.002A/h at 500 nm. Stray Light: < 0.15%T. Scanning Speed: Hi, Med., Low. Max. 1000 nm/min. Standard Sample Holder: 8-position Cell Holder. Analogue/Digital Output: Digital, RS232 Serial, Centronics Parallel. Dimensions: 620(L) x 400(W) x 280(H) mm. Weight: 22 kg / 48 lbs. Shipping Weight: 26 kg / 57 lbs. Power Requirements: 115V/60Hz or 230V/50Hz, switchable. Humidity Range: less than 85%. Safety Certificate: CE. |
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Handbook of Applied Photometry $310.66 Bringing together the contributions of eleven leading photometric experts, this practical reference guide presents common design formulas, essential rulesofthumb, workedout examples, and discussions of photometric instruments. Arranged for ease of reference, the twelve chapters, each of which may be read independently, are grouped into three sections. The first contains introductory material, and defines the terminology and units of measurement used in photometry, while the second covers photometric methods and procedures and provides numerous illustrative case studies. The third section contains reports from the frontiers of photometry, and includes a look at the directions future research might take. Abundantly illustrated and thoroughly referenced, this will prove invaluable to those involved in lighting design, optical physics, or applications design, and will be welcomed by workers in governmentstandards laboratories. The text is supplemented by a list of Web sites which offer photometry information, as well as the editors Web Companion an online site for discussion about the book and related issues. Author: Decusatis, Casimer M. Binding Type: Hardcover Number of Pages: 484 Publication Date: 1997/12/05 Language: English Dimensions: 9.55 x 6.60 x 1.22 inches |
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WAC Lighting R-532-WT White 5 Line Voltage Gimbal Ring Recessed Lighting Trim $15.25 WAC Lighting R-532 5" Line Voltage Gimbal Ring Recessed Lighting Trim5" Aperture series of incandescent recessed down lights, is comprised of residential and light commercial housings incorporating full reflector trims that provide proper lamp position, low glare, and performance photometric not commonly found in competing products. Specifications:20- adjustment from vertical. Height: 1Width: 6.5UL Listed for damp locations |
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WAC Lighting R-535-BN Brushed Nickel 5 Line Voltage Eyeball Recessed Lighting Trim $20.75 WAC Lighting R-535 5" Line Voltage Eyeball Recessed Lighting Trim5" Aperture series of incandescent recessed down lights, is comprised of residential and light commercial housings incorporating full reflector trims that provide proper lamp position, low glare, and performance photometric not commonly found in competing products. Specifications:20- adjustment from vertical. Height: 1.5Width: 6.5UL Listed for damp locations |
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WAC Lighting R-535-CB Copper Bronze 5 Line Voltage Eyeball Recessed Lighting Trim $20.75 WAC Lighting R-535 5" Line Voltage Eyeball Recessed Lighting Trim5" Aperture series of incandescent recessed down lights, is comprised of residential and light commercial housings incorporating full reflector trims that provide proper lamp position, low glare, and performance photometric not commonly found in competing products. Specifications:20- adjustment from vertical. Height: 1.5Width: 6.5UL Listed for damp locations |
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WAC Lighting R-535-WT White 5 Line Voltage Eyeball Recessed Lighting Trim $15.25 WAC Lighting R-535 5" Line Voltage Eyeball Recessed Lighting Trim5" Aperture series of incandescent recessed down lights, is comprised of residential and light commercial housings incorporating full reflector trims that provide proper lamp position, low glare, and performance photometric not commonly found in competing products. Specifications:20- adjustment from vertical. Height: 1.5Width: 6.5UL Listed for damp locations |
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WAC Lighting R-540-WT/WT White / White 5 Line Voltage Scoop Wall Wash with Step Baffle Recessed Lighting Trim $15.25 WAC Lighting R-540 5" Line Voltage Scoop Wall Wash with Step Baffle Recessed Lighting Trim5" Aperture series of incandescent recessed down lights, is comprised of residential and light commercial housings incorporating full reflector trims that provide proper lamp position, low glare, and performance photometric not commonly found in competing products. Specifications:Height: .5625Width: 6.5UL Listed for damp locations |
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WAC Lighting R-622-BK/WT Black / White 6 Line Voltage Step Baffle Recessed Lighting Trim $15.25 WAC Lighting R-622 6" Line Voltage Step Baffle Recessed Lighting Trim6" aperture series of incandescent recessed down lights, is comprised of residential and light commercial housings incorporating full reflector trims that provide proper lamp position, low glare, and performance photometric not commonly found in competing products. Specifications:Height: .1875Width: 7.5UL Listed for damp locations |
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WAC Lighting R-520-CB Copper Bronze 5 Line Voltage Step Baffle Recessed Lighting Trim $16.95 WAC Lighting R-520 5" Line Voltage Step Baffle Recessed Lighting Trim5" Aperture series of incandescent recessed down lights, is comprised of residential and light commercial housings incorporating full reflector trims that provide proper lamp position, low glare, and performance photometric not commonly found in competing products. Specifications:Height: .1875Width: 6.5UL Listed for damp locations |
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WAC Lighting R-520-WT/WT White / White 5 Line Voltage Step Baffle Recessed Lighting Trim $11.7 WAC Lighting R-520 5" Line Voltage Step Baffle Recessed Lighting Trim5" Aperture series of incandescent recessed down lights, is comprised of residential and light commercial housings incorporating full reflector trims that provide proper lamp position, low glare, and performance photometric not commonly found in competing products. Specifications:Height: .1875Width: 6.5UL Listed for damp locations |
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