Great shot of one of the most intriguing of the planetaries Scott and getting VBRC7 in as well is a bit of a bonus for a Novocastrian shooter, well done
. In a really deep shot of Sp1, an outer envelope
and a very faint bow shock front reveals itself. I captured the bow shock in mid 2017 and thought I had made another discovery
...only to realise it had been first referenced in a paper on Sp1 as recently as just Nov 2011, so pretty recently, damn! missed by thaaat much 99
Mike