89          O(H)        N         D
          008.0$+$03.9     Mpi      1.4     0.14          3            170          …          Y         P
          096.4$+$29.9    Mcspa     1.5     0.09          5            48        Of-WR(H)      N       D, P
          063.1$+$13.9    Ecsh      0.7     0.13          6            148        hgO(H)       Y         N
          041.8$-$02.9     Bth      1.0     0.32         38            110         DAO         Y         N
          083.5$+$12.7    Ecsah     1.3     0.08          5            50         O3f(H)       N       D, P
          037.7$-$34.5    Lbspa     1.5     0.09          3            87          O(H)        N       D, P
          089.0$+$00.3     Bs       1.7     0.16        &lt;1          80         \[WC\]       Y         D
          331.7$-$01.0     Bps      1–3    0.1–0.2      0.6–2          32:          …          N       D, P
  ------ -------------- --------- ------- --------- ------------- ------------- ---------- --------- ---------

Target Selection
----------------

Our aim with HerPlaNS is to generate a comprehensive spatially-resolved far-IR PN data resource which carries a rich and lasting legacy in the follow-up investigations. As HerPlaNS was motivated partly by the Chandra Planetary Nebula Survey (ChanPlaNS; @chanplans) conducted with the [*Chandra X-ray Observatory*]{} [@cxc], our target list is a subset of the initial ChanPlaNS sample (Cycle 12 plus archival). This sample is volume-limited, with an approximate cutoff distance of 1.5kpc, and is dominated by relatively high-excitation nebulae (see @chanplans for details). Then, we took into account the far-IR detectability of the target candidates based on the previous observations made with [*IRAS*]{}, [*ISO*]{}, [*Spitzer*]{}, and [*AKARI*]{}. Through 