Dictionary of Nomenclature of Celestial Objects

NN
Note:XMM-Newton observations of IC 342.
31 sources among the 35 are plausibly associated with IC 342.
The 3 brightest sources are also designated as 'IC 342 X-N'.
in source:IC 342
Ref:=2003AJ....126.2797B
byBAUER F.E. , BRANDT W.N., LEHMER B.
 Astron. J., 126, 2797-2805 (2003)
  The X-ray properties of the nearby star-forming galaxy IC 342: the XMM-newton view.
oFig.1, Table 1: <[BBL2003b] NN> (Nos 1-35), <[BBL2003b] IC 342 X-N> (Nos 1-3).

====Sorry, no entry could be found====