Twenty six southern NGC deep sky objects were found before Messier started his catalogue.
They make an interesting observing project. All of them are south of declination -25.
Here is the list:
Name TYPE Con Vmag Discoverer YEAR
M7 OC SCO 3.3 Ptolemäus -138
SMC Gx TUC 2.2 Vespucci 1501 (The LMC is not in the NGC catalogue)
6231 OC SCO 2.6 Hodierna 1654
M6 OC SCO 4.2 Hodierna 1654
5139 GC CEN 5.3 Halley 1677
M4 GC SCO 5.4 de Cheseaux 1745
47 Tuc GC TUC 4.0 Lacaille 1751
Tarant Neb DOR 6.5 Lacaille 1751
2477 OC PUP 5.8 Lacaille 1752
2516 OC CAR 3.8 Lacaille 1752
2546 OC PUP 6.3 Lacaille 1752
2547 OC VEL 4.7 Lacaille 1752
3228 OC VEL 6.0 Lacaille 1752
3293 OC CAR 4.7 Lacaille 1752
3372 Neb CAR 4.0 Lacaille 1752
3532 OC CAR 3.0 Lacaille 1752
3766 OC CEN 5.3 Lacaille 1752
4755 OC CRU 4.2 Lacaille 1752
4833 GC MUS 8.4 Lacaille 1752
M83 Gx HYA 7.5 Lacaille 1752
5281 OC CEN 5.9 Lacaille 1752
5662 OC CEN 5.5 Lacaille 1752
6025 OC TRA 5.1 Lacaille 1752
6124 OC SCO 5.8 Lacaille 1752
6242 OC SCO 6.4 Lacaille 1752
6397 GC ARA 5.3 Lacaille 1752
Reference: Wolfgang Steinicke
http://www.klima-luft.de/steinicke/index_e.htm
