 SS 433 at the centre of supernova remnant W50 Credit: NRAO/AUI/NSF, K. Golap, M. Goss; NASA’s Wide Field Survey Explorer (WISE) | |
| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Aquila |
| Right ascension | 19h 11m 49.56s[1] |
| Declination | +04° 58′ 57.8″[1] |
| Apparent magnitude (V) | 13.0 - 17.3[2] |
| Characteristics | |
| Spectral type | A7Ib |
| Variable type | Eclipsing binary[2] |
| Astrometry | |
| Proper motion (μ) | RA: −3.027[1] mas/yr Dec.: −4.777[1] mas/yr |
| Parallax (π) | 0.1182 ± 0.0233 mas[1] |
| Distance | 18,000±700 ly (5,500±200[3][4] pc) |
| Orbit[5] | |
| Period (P) | 13.082 d |
| Eccentricity (e) | 0.05 ± 0.01 |
| Inclination (i) | 79° |
| Other designations | |
V1343 Aql, GAL 039.7-02.0, 2MASS J19114957+0458578, USNO 659, 1A 1909+04, 87GB 190920.8+045332, NEK 40.1-02.1, 3A 1909+048, GPS 1909+049, RGB J1911+049, BWE 1909+0453, GRS 039.60 -01.80, RX J1911.7+0459, 4C 04.66, 1H 1908+047, 1RXS J191149.7+045857, 2E 1909.3+0453, HBHA 204-02, AAVSO 1906+04, 2E 4204, INTEGRAL1 110, TXS 1909+048, 1ES 1909+04.8, INTREF 969, 4U 1908+05. | |
| Database references | |
| SIMBAD | data |
SS 433 is a microquasar or eclipsing X-ray binary system, consisting of a stellar-mass black hole accreting matter from an A-type companion star.[5][6] SS 433 is the first discovered microquasar.[7] It is at the centre of the supernova remnant W50.
SS 433's designation comes from the initials of two astronomers at Case Western Reserve University: Nicholas Sanduleak and Charles Bruce Stephenson. It was the 433rd entry in their 1977 catalog of stars with strong emission lines.[7] Its emission lines were studied by Mordehai Milgrom in 1979.[8]
- ^ a b c d e Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
- ^ a b Samus, N. N.; Durlevich, O. V.; et al. (2009). "VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+ 2007-2013)". VizieR On-line Data Catalog: B/GCVS. Originally Published in: 2009yCat....102025S. 1: B/gcvs. Bibcode:2009yCat....102025S.
- ^ Blundell, Katherine M.; Bowler, Michael G. (2004). "Symmetry in the Changing Jets of SS 433 and Its True Distance from Us". The Astrophysical Journal. 616 (2): L159–L162. arXiv:astro-ph/0410456. Bibcode:2004ApJ...616L.159B. doi:10.1086/426542. ISSN 0004-637X. S2CID 11213274.
- ^ Jeffrey, Robert (2016). The remarkable outflows from the galactic microquasar SS433. ora.ox.ac.uk (DPhil thesis). University of Oxford. EThOS uk.bl.ethos.730205.
- ^ a b Cherepashchuk, A. M.; Belinski, A. A.; Dodin, A. V.; Postnov, K. A. (2021). "Discovery of orbital eccentricity and evidence for orbital period increase of SS433". Monthly Notices of the Royal Astronomical Society: Letters. 507 (1): L19–L23. arXiv:2107.09005. Bibcode:2021MNRAS.507L..19C. doi:10.1093/mnrasl/slab083.
- ^ Hillwig, T. C.; Gies, D. R.; Huang, W.; McSwain, M. V.; Stark, M. A.; Van Der Meer, A.; Kaper, L. (2004). "Identification of the Mass Donor Star's Spectrum in SS 433". The Astrophysical Journal. 615 (1): 422–431. arXiv:astro-ph/0403634. Bibcode:2004ApJ...615..422H. doi:10.1086/423927. S2CID 17930915.
- ^ a b SS 433, David Darling, entry in The Internet Encyclopedia of Science, accessed on line September 14, 2007.
- ^ Milgrom, Mordehai (October 1979). "Thomson scattered lines in the spectrum of SS 433 - A powerful tool for studying the system". Astronomy and Astrophysics. 78 (3): L17–L20. Bibcode:1979A&A....78L..17M.
