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RA: 21h 07m 24s
Dec: +56° 22′ 0″
Ch: MSA:1088, U2:56, SA:3
Ref: SIMBAD, VII/220A
Type: dark nebula
Note (supplied by Bill Gray, Project Pluto): Irregular, dark marking. This, together with the dusky space in which B 151 is located, forms an irregular, zigzag marking 54' long.
The Messier objects
The Bennett objects
The Caldwell list
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