SIMBAD references

1979A&A....75...61B - Astronomy and Astrophysics, volume 75, 61-72 (1979)

Copernicus observations of theta2 Ori A, a proposed optical counterpart of the X-ray source 4U 0531-05.

BERNACCA P.L. and BIANCHI L.

Journal keyword(s):

Simbad objects: 3

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