5P 21 , the SIMBAD biblio

1985AJ.....90.1224C - Astron. J., 90, 1224-1230 (1985)

The supernova remnant G 54.5-0.3 and its environs.

CASWELL J.L.

Journal keyword(s):

Nomenclature: Table I: 5P NN (Nos 1-32), retroactive numbering.

Simbad objects: 35

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