V2400 Ophiuchi = RX J1712.6-2414

SkyView image
of V2400 Oph (see important notes).
- Position
-
- Equatorial: 17h12m36.43s,
-24d14m44.7s (J2000)
- Galactic: l=359.87, b=+8.74
- Finding Chart:
- Buckley et al (1995).
- Brigntness:
- Optical ; fx (2-10 keV)~5.2x10^(-11) ergs/cm/cm/s (ASCA)
- Periods:
-
- Orbital: 3.43 hr period is inferred from the spin and sideband periods.
- Spin: 0.010737 d = 15.46 min = 927.66 s, from optical polarimetry.
- Others: 16.72 min =1003 s period dominates the emission lines,
optical photometry, and X-ray photometry.
- Inclination:
- About 10o?
- Distance:
- ?
This appears to be the prototype diskless IP (indirectly proving that
other IPs do have disks?). It's also polarized.
References