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physical object > natural object > celestial body > collection of stars > galaxy > radio galaxy > D galaxy

D galaxy comparison table

Subject	has volume	has catalog	has number of star	has momentum	has spectra	has material	has velocity	has mass	has extent	has angular momentum	has definition	is part of	has location	is a kind of	has wavelength	has temperature
db galaxy		galaxy catalog	106 to 1012								One of a small number of dumbbell-shaped radio galaxies. They might be called D systems with double nuclei, in which two elliptical nuclei share a common extended envelope.	celestial sphere	or center of gravity	D galaxy	radio

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