EUVE Observations of Planetary Nebulae

We present preliminary results of extreme ultraviolet observations (60--740 Angstroms) of a complete sample of planetary nebulae (PN) selected from the Strasbourg-ESO Catalog (Acker et al. 1992) and observed during the Extreme Ultraviolet Explorer (EUVE) all-sky survey. Our selection criteria are focused on minimizing the impact of the interstellar absorption on the extreme ultraviolet observations, and our sample includes the 26 closest PN (distances <= 1 kpc) at high galactic latitude (|b|>= 20deg ). During the EUVE all-sky survey at least five PN in our sample (NGC 246, NGC 1360, K1-16, Lo Tr5, NGC 4361) were detected in the shortest band (58--174 Angstroms). The extreme ultraviolet emission originates in the central star. Upper limits in the four EUVE bands (centered at ~ 100, 200, 400, 600 Angstroms) are given for all the sources. This work has been supported by NASA contract NAS5-30180.