by | ABELL G.O. |
Publ. Astron. Soc. Pac., 67, 258-261 (1955) | |
Globular clusters and planetary nebulae discovered on the national geographic society-Palomar Observatory sky survey. | |
o | Table I: <Cl Palomar NN> (Nos 1-13), Table II: <PN A55 NN> (Nos 1-73) |
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