22.0 < µ  >  22.5 mag/arcsec²

N2-2:

N2-3:

N4-2:

N5-1:

N5-2:

N5-3:

N5-4:

N6-2:

N6-4:

N9-1:

N10-2:

N11-1:

N11-2:

U1-3:

A1-4:

A1-5:

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