Cygnus X-3 ❍｜appendage｜___｜20260628155835-01-•

Observation data Epoch J2000.0 Equinox J2000.0 (ICRS)	…
Constellation	Cygnus1
Right ascension	20${}^h$ 32${}^m$ 25.78${}^s$2
Declination	+40° 57′ 27.9″2
Characteristics	…
Spectral type	WN 4–63
Astrometry	…
Radial velocity (R${}_v$)	208${}_{-127}^{+113}$3 km/s
Distance	7,400±1,1004 pc
Absolute magnitude (M${}_V$)	−4.53
Orbit 3	…
Period (P)	4.8 hours
Semi-amplitude (K${}_1$) (primary)	379${}_{-149}^{+124}$ km/s
Details	…
WR	…
Mass	8–143 M${}_{☉}$
Radius	<23 R${}_{☉}$
Luminosity	209,000${}_{-64,000}^{+93,000}$3 L${}_{☉}$
Temperature	more than 80,0003 K
compact object	…
Mass	2.4${}_{-1.1}^{+2.1}$5 M${}_{☉}$
Other designations	…
V1521 Cyg, 18P 57, WR 145a, X Cyg X-3, RX J2032.3+4057, INTEGRAL1 118, 2U 2030+40, 3U 2030+40, 4U 2030+406	…
Database references	…
SIMBAD	data

Cygnus X-3

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Footnotes

1. Roman, Nancy G. (1987). “Identification of a constellation from a position”. Publications of the Astronomical Society of the Pacific. 99 (617): 695. Bibcode:1987PASP…99..695R. doi:10.1086/132034. Constellation record for this object at VizieR. ↩

2. Cutri, Roc M.; Skrutskie, Michael F.; Van Dyk, Schuyler D.; Beichman, Charles A.; Carpenter, John M.; Chester, Thomas; Cambresy, Laurent; Evans, Tracey E.; Fowler, John W.; Gizis, John E.; Howard, Elizabeth V.; Huchra, John P.; Jarrett, Thomas H.; Kopan, Eugene L.; Kirkpatrick, J. Davy; Light, Robert M.; Marsh, Kenneth A.; McCallon, Howard L.; Schneider, Stephen E.; Stiening, Rae; Sykes, Matthew J.; Weinberg, Martin D.; Wheaton, William A.; Wheelock, Sherry L.; Zacarias, N. (2003). “VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)”. CDS/ADC Collection of Electronic Catalogues. 2246: II/246. Bibcode:2003yCat.2246…0C. S2CID 115529446. ↩ ↩²

3. Koljonen, K. I. I.; MacCarone, T. J. (2017). “Gemini/GNIRS infrared spectroscopy of the Wolf-Rayet stellar wind in Cygnus X-3”. Monthly Notices of the Royal Astronomical Society. 472 (2): 2181. arXiv:1708.04050. Bibcode:2017MNRAS.472.2181K. doi:10.1093/mnras/stx2106. S2CID 54028568. ↩ ↩² ↩³ ↩⁴ ↩⁵ ↩⁶ ↩⁷ ↩⁸

4. McCollough, M. L.; Corrales, L.; Dunham, M. M. (2016). “Cygnus X-3: Its Little Friend’s Counterpart, the Distance to Cygnus X-3, and Outflows/Jets”. The Astrophysical Journal. 830 (2): L36. arXiv:1610.01923. Bibcode:2016ApJ…830L..36M. doi:10.3847/2041-8205/830/2/L36. S2CID 53546093. ↩

5. Zdziarski, A. A.; Mikolajewska, J.; Belczynski, K. (2013). “Cyg X-3: A low-mass black hole or a neutron star”. Monthly Notices of the Royal Astronomical Society. 429: L104–L108. arXiv:1208.5455. Bibcode:2013MNRAS.429L.104Z. doi:10.1093/mnrasl/sls035. S2CID 119185839. ↩

6. “V﹡ V1521 Cyg”. SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved November 7, 2008. ↩