The spacecraft circles the sun carrying a 
photometer, or light meter, to check changes in the brightness of thousands of stars.
Uzay binlerce yıldızın parlaklığındaki değişimleri kontrol etmek için, bir fotometre taşıyan güneş veya ışık metre çevreler.
Kaynak: world-science.netThe spacecraft is orbiting the sun carrying a 
photometer, or light meter, to measure changes in the brightness of thousands of stars.
Uzay aracı, bir fotometre veya binlerce yıldızın parlaklığı değişiklikleri ölçmek için ışık ölçer, taşıma güneşin yörüngesinde.
Kaynak: dailygalaxy.comIn its widest sense, a 
photometer is an instrument for measuring light intensity  or optical properties of solutions or surfaces.
Kaynak: PhotometerA sun 
photometer is a type of 
photometer  conceived in such a way that it points at the sun . Recent sun 
photometers are automated
Kaynak: Sun photometerThe Kepler 
photometer is the main instrument on NASA 's Kepler spacecraft .  It is a Schmidt telescope  (95 cm clear aperture, 140 cm
Kaynak: Kepler photometerThe tiny ionospheric 
photometer (TIP) is a small space-based 
photometer  that observes the Earth's ionosphere  at 135.6 nm.  The TIP
Kaynak: Tiny ionospheric photometerhow many of the billions of stars in our galaxy have such planets A 
photometer  continually monitors the brightness of over 145,000 main
Kaynak: Kepler (spacecraft)edu/mips/ SSC MIPS (long wavelength 24um, 70um, & 160um) imaging 
photometer and spectrometer science users' information page, 4 Oct 2009.
Kaynak: Spitzer Space TelescopeBefore the advent of 
photometer s which accurately measure the brightness of astronomical objects, the apparent magnitude  of an object was
Kaynak: Photographic magnitudeJan Schilt (1894-1982) was a Dutch-American astronomer , inventor of the Schilt 
photometer . Biography: Schilt was born in 1894 in the
Kaynak: Jan SchiltThe first commercial instrument (formally called a “scattered 
photometer”) was the Brice-Phoenix light scattering 
photometer introduced in
Kaynak: Multiangle light scatteringAERONET - the AERONET (AErosol RObotic NETwork) is a network of ground-based sun 
photometer s which measure atmospheric aerosol  properties
Kaynak: AERONETThe P7 
photometer  was active from May 2001 until July 2008.  The 
photometer measured in the 7 band Geneva photometric system.
Kaynak: Mercator TelescopeHistorically, photometry in the near infrared  through long-wavelength ultra-violet  was done with a photoelectric 
photometer, an
Kaynak: Photometry (astronomy)A spectrophotometer is a 
photometer  that can measure intensity as a function of the light source wavelength.  Important features of
Kaynak: SpectrophotometryCGSM is funded primarily by the Canadian Space Agency , and consists of networks of imagers, meridian scanning 
photometer s, riometers,
Kaynak: Canadian Geospace Monitoring