NNo GCVS J2000.0 Type Max Min I Min II Epoch Year Period M-m/D Spectrum References Other desig. p.m.(as/yr) Epoch Ident. New type GCVS
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311687 |V1687 Cyg |202027.98 +435116.3 |WR | 4.0 |( 2.5 )| |K | | | | |WC7p+O5 |03478 BD | |-0.005 -0.002|2000.0 | |Hip | |V1687 Cyg |
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_______________Cross-identifications:_______________
NSV 13030 = GCVS V1687 Cyg |
V1687 Cyg = ADS 13736 |
V1687 Cyg = BD +43 3571 |
V1687 Cyg = GSC 03164.01678 |
V1687 Cyg = HD 193793 |
V1687 Cyg = Hip 100287 |
V1687 Cyg = IRAS 20187+4341 |
V1687 Cyg = SAO 049491 |
V1687 Cyg = WR 140 |
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Reference to a chart or photograph:
BD Bonner Durchmusterung, F.W.A. Argelander, Bonner Sternverzeichniss, 1 bis 4 Sektion, Astronomische Beobachtungen auf der Sternwarte de Kgl. Rhein/ Friedrich-Wilhelms-Unviersiaet zu Bonn (CDS Cat. I/122).
Reference to a study of the star:
03478. J.A. Hackwell, R.D.Gehrz, G.L.Grasdalen, ApJ 234, 133, 1979 {1979ApJ...234..133H}
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