http://skyatlas.rgbstore.com/hcngcData.jsp?id=CRU
The above page is for Crux
Entries from the Historically-Corrected New General Catalog of
The NGC/IC Project, for each constellation appear below. All NGC object entries in the
original NGC catalog as maintained by The NGC/IC Project are listed with their data, including duplicate and never found objects. Each object has a link to its atlas location via its NGC number in the HCNGC catalog.