Discounted+candidates

List from existing wiki to go here

Discounted candidates from 2012:-
PSN in NGC2768 PSN in NGC4490 PSN in NGC2649

Discounted candidates from 2011:-
PSN in NGC3126 PSN in NGC4932

Discounted candidates from 2010:-
PSN in NGC587 PSN in NGC6113

Discounted candidates from 2008:-
PSN in NGC2493