Excellent comments, folks! But being me - always in a hurry - I am now the proud owner of the Uranometria all sky and Deep sky field guide.
A bit difficult to decipher in places. One problem in particular I cant suss out. That is the Messier object Index in the back of the DSFG. First column is M number - OK
Second column is NGC no - OK
Third column is chart No followed by Roman digits from 1 to XX . ie Andromeda is M31, chart is 30, but what are those Roman numbers??
I thought it may be luminosity, but that only goes to V. Then I thought it may be smaller galaxies. I found an Andromeda 11 but no other names going up to XX. Any ideas?? I hate it when I cant find the info....AAAAAAAGGGGGGHHHHH
HELP!