This sixth supplement to the ``Catalogue of Galactic Planetary Nebulae'' (Perek, Kohoutek, 1967 - CGPN(1967)) deals with objects of period 1995-1999 and contains five lists. In Table 1 (New Planetary Nebulae) we present 169 new PNe, namely their PN designations, names, equatorial coordinates and references to their discovery as PNe (!). The summary of the main properties of a planetary nebula and of its central star given in CGPN (Version 2000) was used.
There are objects on the evolutionary way between AGB-stars and young PNe. The list of such possible pre-PNe (n=92) is given in Appendix A to Table 1. Similarly, the list of possible post-PNe is given in Appendix B to Table 1. It contains 18 objects which are on the evolutionary way between very old PNe and WD.
As in the former supplements there are also in this period objects which we suggest to remove from the list of PNe. We present these objects (n=47) in Table 2 as misclassified PNe. This table contains PK designations, names and short descriptions why they were misclassified.
The misidentified PNe (n=11) are listed in Table 3. They all have new finding charts with correct identification in CGPN(2000).
The number of new and misclassified PNe differs slightly from that given in SECGPN and in the Supplement 1 (Acker et al.,1992 and 1996) due to somewhat different classification criteria used.
All five lists of this supplement have been included in the corresponding tables of the ``Catalogue of Galactic Planetary Nebulae'' (Kohoutek, 2001 - CGPN(2000)). This supplement was not published separately as a paper, but it is available from the author.
Acker A., Marcout J., Ochsenbein F., Stenholm B., Tylenda R., Schohn C., 1992,
The Strasbourg-ESO Catalogue of Galactic Planetary Nebulae, European Southern
Acker A., Marcout J., Ochsenbein F., 1996, First Supplement to the SECGPN, Observatoire de Strasbourg. (S1 to SECGPN)
Kohoutek L., 2001, Catalogue of Galactic Planetary Nebulae - Version 2000, Abh. Hamburger Sternwarte XII. (CGPN(2000))
Perek L., Kohoutek L., 1967, Catalogue of Galactic Planetary Nebulae, Academia Praha. (CGPN(1967))