Dictionary of Nomenclature of Celestial Objects
(Last update: 16-Jan-2019)

Result of query: info cati PN YM$

Details on Acronym:   YM
   YM (Yerkes McDonald obs.) Write:<<PN YM NN>> N: 47 Object:PN  (SIMBAD class: PN = Planetary Nebula) Note:See also [J55] and [J56] Ref:=1955ApJ...121..604J byJOHNSON H.M. Astrophys. J., 121, 604-610 (1955) Symmetric galactic nebulae. oTable 1: <[J55] NNN> (Nos 1-152), among which 36 are cross-id. with <PN YM NN> (Nos 1-36) Ref:=1956ApJ...124...90J byJOHNSON H.M. Astrophys. J., 124, 90-92 (1956) Symmetric galactic nebulae. II. oTable 1: <[J56] NN> (Nos 1-32), among which 11 are cross-id. with <PN YM NN> (Nos 37-47) Originof the Acronym: A = Assigned by the author(s)

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