V455 And
V515 And
AE Aqr
FO Aqr
XY Ari
V405 Aur
V647 Aur
HT Cam
MU Cam
DW Cnc
V709 Cas
V1033 Cas
V1025 Cen
TV Col
TX Col
UU Col
V2069 Cyg
V2306 Cyg
YY Dra
PQ Gem
V418 Gem
DQ Her
V1323 Her
EX Hya
NY Lup
V2400 Oph
V2731 Oph
V598 Peg
GK Per
AO Psc
V667 Pup
WX Pyx
V1223 Sgr
CC Scl
V1062 Tau
AX J1740.1
AX J1740.2
AX J1853.3
IGR J08390
IGR J15094
IGR J16500
IGR J16547
IGR J17195
IGR J18173
IGR J18308
IGR 19267
RX J2133

Full Catalog

Related Systems

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V1223 Sagittarii = 4U1851-31

A finding chart for V1223 Sgr

SkyView image of V1223 Sgr (see important notes).

  • Equatorial: 18h55m02.0s, -31d09m48s (J2000)
  • Galactic: l=4.96, b=-14.35
Finding Chart:
Steiner et al. (1981)
Optical ; fx (2-10 keV)~8.8x10^(-11) ergs/cm/cm/s (ASCA)
IP Credential:
***** (Ironclad)
  • Orbital: 0.140244 d = 3.365856 hr = 12117.1 s
    T(max) = HJD 2444749.986(3) + 0.1402440(4) E
    (Jablonski & Steiner (1988))
  • Spin: 0.00863 d = 12.43 min = 745.63 s, seen in X-rays and (occasionally) in the optical.
    Tmax = HJD 2445619.1772(2) + 0.00863(5) E
    (Osborne et al. (1985)) is now pitifully out of date --- is there a better one somewhere?
    See the canonical spin profiles
  • Others: The 794.379 s sideband is more prominent than the spin period in the optical.
    Tmax = HJD 2444508.47235(4) + 0.009194204(2) E + 1.28(7)x10-13 E2
    (Jablonski & Steiner (1988))
16-40 (Watts et al. (1985)).
510 pc (Beuermann et al. (2004))


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