BD+42 3780 , the SIMBAD biblio

1959IzKry..21..229I - Izv. Krym. Astrofiz. Obs., 21, 229-256 (1959)

The spectra, magnitudes and colours of O-A type stars in an area of the Milky Way, with the Center alpha = 20h16m, delta = +42 D 30'.

IKHSANOV N.R.

Journal keyword(s):

Nomenclature: [I59] +39 NNN (Nos 1-136), [I59] +40 NNN (Nos 1-209), [I59] +41 NNN (Nos 1-204), [I59] +42 NNN (Nos 1-191), [I59] +43 NNN (Nos 1-138), [I59] +44 NN (Nos 1-74)

Simbad objects: 425

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