58 citations · 68 across the 2 of their papers we have counts for
1 paper · 1 filter
W. A. Weidmann, E. O. Schmidt, R. R. Vena Valdarenas +3
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 I…