LS I +61 303
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Cassiopeia |
| Right ascension | 02h 40m 31.6657s |
| Declination | +61° 13' 45.604"' |
| Apparent magnitude (V) | 10.8 |
| Characteristics | |
| Spectral type | B0Ve |
| Variable type | None |
| Astrometry | |
| Proper motion (μ) | RA: 0.62 mas/yr Dec.: 1.63 mas/yr |
| Parallax (π) | 5.65 ± 2.28 mas |
| Distance | approx. 600 ly (approx. 180 pc) |
| Absolute magnitude (MV) | 11.4 |
| Other designations | |
LS I +61 303 is a binary system harboring a compact object and a massive star (possibly a microquasar) that emits HE and VHE (High Energy and Very High Energy) gamma rays. It is only one of three known star systems that produce such energetic rays. The other two systems are PSR B1259-63 and LS 5039.
References
- Paredes; Ribó, Marc; Bosch-Ramon, Valentí; West, Jennifer R.; Butt, Yousaf M.; Torres, Diego F.; Martí, Josep (2007). "Chandra Observations of the Gamma-Ray Binary LS I +61 303: Extended X-Ray Structure?". The Astrophysical Journal Letters 664 (1): L39–L42. arXiv:0706.0877. Bibcode:2007ApJ...664L..39P. doi:10.1086/520674.
- Variable Very High Energy Gamma-ray Emission from the Microquasar LS I +61 303
- SCIENCE Journal - Submitted on March 31, 2006 - Accepted on May 8, 2006
- PDF Published online May 18, 2006; 10.1126/science.1128177 (Science Express Reports)
- Variable Very-High-Energy Gamma-Ray Emission from the Microquasar LS I +61 303 SUPPORT
External links
- Astronomers Discovery Very High Energy Gamma-ray Emission From Microquasar (ScienceDaily) May 19, 2006
- MAGIC - Major Atmospheric Gamma Imaging Cerenkov Telescope web site
- MAGIC Telescope home page
- Simbad
Coordinates: 
02h 40m 31.6657s, +61° 13′ 45.604″
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