= NGC 3804. There is no doubt that the objects are identical.
Herschel's positions are 30 seconds of time apart, his descriptions are
similar, and there is no galaxy at the position of NGC 3794. The RNGC got the
wrong galaxy for NGC 3794, supposing that Herschel made a 1 degree error in
the declination as well as a 1 minute error in RA. It is more likely that
WH made a single smaller error rather than two larger ones.