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NGC 7434


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관련 글

An image database. II. Catalogue between δ=-30deg and δ=70deg.
A preliminary list of 68.040 galaxies was built from extraction of35.841 digitized images of the Palomar Sky Survey (Paper I). For eachgalaxy, the basic parameters are obtained: coordinates, diameter, axisratio, total magnitude, position angle. On this preliminary list, weapply severe selection rules to get a catalog of 28.000 galaxies, wellidentified and well documented. For each parameter, a comparison is madewith standard measurements. The accuracy of the raw photometricparameters is quite good despite of the simplicity of the method.Without any local correction, the standard error on the total magnitudeis about 0.5 magnitude up to a total magnitude of B_T_=17. Significantsecondary effects are detected concerning the magnitudes: distance toplate center effect and air-mass effect.

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다음 그룹에 속해있음:


관측 및 측정 데이터

별자리:물고기자리
적경:22h58m21.40s
적위:-01°11'02.0"
가시면적:0.631′ × 0.309′

천체목록:
일반명   (Edit)
NGC 2000.0NGC 7434
HYPERLEDA-IPGC 70145

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