Любительская астрономияГалактикиNGC 5474Helio. Radial Velocity: 273 +/- 9 km/s Redshift: 0.000911 +/- 0.000030 1975ApJ...198..527S Major Diameter (arcmin) : 4.8 Minor Diameter (arcmin) : 4.3 Magnitude and Filter : 11.28 Classifications : SA(s)cd pec HII Optical spectral atlas of Seyfert nuclei (Ho+ 1995)
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