NGC 4644 B at 1.4' (28 kpc) separation (4808 km s^-1^) is an interacting system.
The double-peaked HI profile represents both the interacting galaxies. No other
obvious confusing source is found within the Effelsberg beam.
= NGC 4644B
Pair with NGC 4644 at 1.7 arcmin
In Haro 32 Group (A1241+55A,B).
Photograph, Dimensions, Photometry and Spectrum:
A.J., 75, 1143, 1970. (Obj. 32C,D).