s often designated as <Cyg OB2 NNA> in the literature. See also Schulte. | |
in source: | NAME VI Cyg = Ass Cyg OB 2 |
Ref: | =1953ApJ...118..161M |
by | MUNCH L. , MORGAN W.W. |
Astrophys. J., 118, 161-162 (1953) | |
A probable clustering of blue giants in Cygnus. | |
o | <Schulte NN> (Nos 1-11) = <[MM53] Cyg OB2 NN> (Nos 1-11). |
Ref: | =1954ApJ...119..344J |
by | JOHNSON H.L. , MORGAN W.W. |
Astrophys. J., 119, 344-345 (1954) | |
A heavily obscured O-association in Cygnus. | |
o | <Schulte NNA> (Nos 8A-8D) added = <[MM53] Cyg OB2 NNA> (Nos 8A-8D) added. |
Ref: | =1954PASP...66...85M |
by | MORGAN W.W. , JOHNSON H.L., ROMAN N.G. |
Publ. Astron. Soc. Pac., 66, 85-87 (1954) | |
A very red star of early type in Cygnus. | |
o | <Schulte NNA> (No. 12) added = <[MM53] Cyg OB2 NNA> (No. 12) added. |
Ref: | =1954ApJ...120..506M |
by | MORGAN W.W. , MEINEL A.B., JOHNSON H.M. |
Astrophys. J., 120, 506-508 (1954) | |
Spectral classification with exceedingly low dispersion. | |
o | Fig. 5: <Schulte NNA> (Nos 13-19) = <[MM53] Cyg OB2 NNA> (Nos 13-19) added. |
Ref: | =1956ApJ...123..250S |
by | SCHULTE D.H. |
Astrophys. J., 123, 250-252 (1956) | |
Some recent results of low-dispersion spectral classification. | |
o | Figs 3, 4: <Schulte NNA> (Nos 20-30) added = <[MM53] Cyg OB2 NNA> (Nos 20-30) added. Fig.6: <Cl* NGC 6618 Sch N> (Nos 1-2). |
Ref: | =1956ApJ...124..530S |
by | SCHULTE D.H. |
Astrophys. J., 124, 530-532 (1956) | |
New members of the association VI Cygni. | |
o | Fig. 6: <Schulte NN> (Nos 31-85) added = <[MM53] Cyg OB2 NNA> (Nos 31-85) added. |
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