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

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V455 Andromedae = HS 2331+3905

A finding chart for V455 And

SkyView image of V455 And (see important notes)

  • Equatorial: 23h34m01.55s, +39d21m42.9s (J2000)
  • Galactic: l=106.99, b=-21.10
Finding Chart:
Araujo-Betancor et al. (2005)
Optical R~16/5; fx (2-10 keV)~?
IP Credential:
**** (Confirmed): Although not all the periods of this system are fully understood, the presence of the coherent 67.6 s period, which must be the spin period, is beyond doubt.
  • Orbital: 0.05630921 d = 1.351421 hr = 4865.116 s, from the shallow eclipses.
    HJD = 2451812.67765(35) + 0.05630921(1)E
    (Araujo-Betancor et al. 2005) for the times of mid-eclipse.
  • 0.0007826355 d = 1.126995 m = 67.619704 s, seen in optical photometry and time resolved spectroscopy.
  • Others: 83.38 min permanent superhump period; ~3.5 hr spectroscopic period (not strictly coherent); 5-6 min white dwarf pulsation periods; 67.2 s period seen in optical photometry, which appears to be a beat period between the spin and the 3.5 hr period.
90+/-15 pc.


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