IPs

AE Aqr
FO Aqr
XY Ari
V405 Aur
HT Cam
MU Cam
DW Cnc
BG CMi
V709 Cas
V1025 Cen
TV Col
TX Col
UU Col
V2069 Cyg
V2306 Cyg
YY Dra
PQ Gem
DQ Her
EX Hya
NY Lup
V2400 Oph
GK Per
AO Psc
WX Pyx
V1223 Sgr
V1062 Tau
EI UMa
IGR 00234
IGR 15094
IGR 17303
Swift J0732
RX J0704
RX J1803
RX J2133
SDSS J233325
XSS 00564

Full Catalog

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FO Aquarii = H2215-086

A finding chart for FO Aqr

SkyView image of FO Aqr (see important notes).

Position
  • Equatorial: 22h17m55.49s, -08d21m05.4s (J2000)
    The SIMBAD server returns 22h17m57.1s, -08d21m11.2s --- this is 25 arcsec or so off. The above is from the Downes & Shara (1993).
  • Galactic: l=53.00, b=-49.16
Finding Chart:
Patterson & Steiner (1983)
Brigntness:
Optical ; fx (2-10 keV)~3.5x10^(-11) ergs/cm/cm/s (ASCA)
IP Credential:
***** (Ironclad)
Periods:
  • Orbital: 0.202 d = 4.84944 hr = 14738 s, see in optical and X-rays.
    HJD = 2444782.869(2) + 0.2020596(1)E
    (Patterson et al 1998b) for the orbital dip.
  • Spin: 0.01452 d = 20.9 min = 1254s, seen in optical photometry, optical spectroscopy and X-rays.
    HJD = 2444782.9168 + 0.014519035E + 7.002x10^(-13)E^2 - 1.556x10^(-18)E^3
    (Erratum to Patterson et al 1998b) works for 1981-1987. However, given the erratic history of this system, a continuing monitoring would be prudent.
  • Others: spin-orbit and 2spin-orbit seen in X-rays; spin-orbit and possibly spin+orbit seen in optical photometry.
Inclination:
~65 deg? (has grazing eclipse).
Distance:
~400 pc?

References


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