The outer shells of M 2-55 and Abel 2

[wvreeven]

New deep imaging of M 2-55 and Abel 2 have revealed faint outer structure in these planetairy nebulae. Especially M 2-55 appears to have an outer arc that may be visible with really large telescopes. For more info, see

https://arxiv.org/pdf/2003.05616.pdf


Wouter