摘要：We present an atlas of more than one hundred original images of planetary nebulae (PNe).
These images were taken in a narrow-band filter centred on the nebular emission of the
[N ii] during several observing campaigns using two moderate-aperture
telescopes, at the Complejo Astronómico El Leoncito (CASLEO), and the Estación Astrofísica
de Bosque Alegre (EABA), both in Argentina. The data provided by this atlas represent one
of the most extensive image surveys of PNe in [N ii]. We compare the new images
with those available in the literature, and briefly describe all cases in which our
[N ii] images reveal new and interesting structures.
