| |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Ophiuchus |
| Right ascension | 17h19m37s[citation needed] |
| Declination | −25° 01′ 03″[citation needed] |
| Apparent magnitude (V) | 16.65[citation needed] |
| Astrometry | |
| Distance | 8500[citation needed] ly (2600[citation needed] pc) |
| Absolute magnitude (MV) | ≥6[2] |
| Database references | |
| SIMBAD | data |
GRO J1719-24 (GRS 1716-249, V2293 Oph, X-Ray Nova Ophiuchi 1993) is believed to be a low-mass X-ray binary.[2] Its name derives from an X-ray transient, detected in 1993.[3] The system consists of a black hole candidate and a low mass companion, estimated to be a main sequence star of the spectral type K0-5 V.[4]
The rotation period is uncertain, estimated at 14.7h.[1] The light curve possibly exhibits some faster fluctuations as well, which are hypothesized to be produced by blobs of matter in the accretion disk.[1]
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