SAC has NGC 3428 and 3429 as the same object at 10h 51.5 +09 17 which is in conflict with some other well known sources. U2 2nd edition has them shown separately on map 92L. The DSS SIMBAD & NED, Guide 8.0 software and the NGC 2000.0 are the same having:
3428 - 10h 51 29.62 +09 16 45.0
3429 - 10h 50 57.40 +09 15 55.0
A few nights ago, I obs 3428 as a fairly bright object approx 5' nf of an 8th mag star and in the position of 3429, a very faint small round object.