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| Query : 1986ApJ...304..371G |
1986ApJ...304..371G - Astrophys. J., 304, 371-388 (1986/May-0)
The optical spectrum of HDE 226868 = Cygnus X-1. II. Spectrophotometry and mass estimates.
GIES D.R. and BOLTON C.T.
Abstract (from CDS):
Abstract Copyright: ∼
Journal keyword(s): Spectrophotometry - Stars: Individual Henry Draper Number: HDE 226868 - Stars: Individual Constellation Name: Cygnus X-1 - X-Rays: Binaries
Simbad objects: 6
| Number of rows : 6 |
| N | Identifier | Otype |
ICRS (J2000) RA |
ICRS (J2000) DEC |
Mag U | Mag B | Mag V | Mag R | Mag I | Sp type |
#ref
1850 - 2026 |
#notes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | * alf Cam | s*b | 04 54 03.0113886719 | +66 20 33.633625509 | 3.47 | 4.34 | 4.29 | 4.18 | 4.18 | O9Ia | 675 | 1 |
| 2 | * eps Ori | s*b | 05 36 12.81335 | -01 12 06.9089 | 0.48 | 1.51 | 1.69 | 1.76 | 1.93 | B0Ia | 921 | 0 |
| 3 | * zet Ori A | SB* | 05 40 45.527143 | -01 56 33.26036 | 1.79 | 1.90 | O9.2IbvarNwk | 680 | 0 | |||
| 4 | * kap Ori | s*b | 05 47 45.3888404 | -09 40 10.577707 | 0.87 | 1.88 | 2.06 | 2.09 | 2.27 | B0.5Ia | 588 | 0 |
| 5 | HD 226868 | HXB | 19 58 21.6757355952 | +35 12 05.784512688 | 9.38 | 9.72 | 8.91 | 8.42 | O9.7Iabpvar | 4590 | 0 | |
| 6 | * 19 Cep | * | 22 05 08.7897533088 | +62 16 47.332569936 | 4.36 | 5.19 | 5.11 | 4.95 | 4.92 | O9Ib | 397 | 0 |
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