LS I +61 303
Star in the constellation Cassiopeia / From Wikipedia, the free encyclopedia
Dear Wikiwand AI, let's keep it short by simply answering these key questions:
Can you list the top facts and stats about LS I +61 303?
Summarize this article for a 10 year old
SHOW ALL QUESTIONS
LS I +61 303 is a binary system containing a massive star and a compact object. The compact object is a pulsar[6] and the system is around 7,000 light-years away.
Quick Facts Observation data Epoch J2000 Equinox J2000, Constellation ...
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Cassiopeia |
Right ascension | 02h 40m 31.6643s[1] |
Declination | +61° 13′ 45.592″[1] |
Apparent magnitude (V) | 10.61–10.83[2] |
Characteristics | |
Spectral type | B0Ve[3] |
U−B color index | −0.34[4] |
B−V color index | +0.86[4] |
Variable type | High-mass X-ray binary[2] |
Astrometry | |
Radial velocity (Rv) | −41.41 km/s |
Proper motion (μ) | RA: 0.27[5] mas/yr Dec.: 2.38[5] mas/yr |
Parallax (π) | 0.45 ± 0.23 mas[1] |
Distance | approx. 7,000 ly (approx. 2,000 pc) |
Other designations | |
Database references | |
SIMBAD | data |
Close