Melyik galaxis az eddig ismert legnagyobb galaxis? Mindenhol mást írnak. Az NGC 6872 vagy az IC 1101? Vagy egyik sem?

Izofotometriával mérve a legnagyobb az NGC 6872:

"Various other spiral galaxies such as Malin 1 and UGC 2885 have larger galactic features such as haloes. But NGC 6872 is the largest known spiral as measured through isophotometry."

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Az ESO 383-76-ról ezt írják:

"With a diameter of about 540.89 kiloparsecs (1.76 million light-years), it is one of the largest galaxies known."

persze hozzá kell tenni, hogy ez átlagolt érték:

"The physical diameters given by NED for this object are based on the mean of one or more redshift-independent distance techniques, which are subject to errors and sensitivity to extreme values. The diameters given for this object in this list was based on NED's provided scale "Virgo + GA + Shapley" multiplied with the values for the angular diameter of the cited estimation method."

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