V455 And
V515 And
AE Aqr
FO Aqr
V349 Aqr
XY Ari
V405 Aur
V647 Aur
HT Cam
MU Cam
DW Cnc
V709 Cas
V1025 Cen
V1033 Cas
TV Col
TX Col
UU Col
V2069 Cyg
V2306 Cyg
DO Dra
PQ Gem
V418 Gem
DQ Her
V1323 Her
V1460 Her
V1674 Her
EX Hya
NY Lup
V2400 Oph
V2731 Oph
V3037 Oph
V598 Peg
GK Per
AO Psc
HZ Pup
V667 Pup
WX Pyx
V1223 Sgr
V4743 Sgr
CC Scl
V1062 Tau
AX J1740.1
AX J1832.3
AX J1853.3
CTCV J2056
CXO J174954
IGR J04571
IGR J08390
IGR J15094
IGR J16500
IGR J16547
IGR J17014
IGR J17195
IGR J18151
IGR J18173
IGR J18308
IGR J19267
PBC J0927.8
PBC J1841.1
RX J1804
RX J2015
RX J2113
RX J2133
RX J2306
Swift J0717
Swift J1839
Swift J2006
Swift J2138

Full Catalog

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V515 Andromedae = XSS J00564+4548 = 1RXS J005528.0+461143

Links to this object in VSX and in Swift BAT 157 month survey

A finding chart for V515 And

SkyView image of V515 And (see important notes).

  • Equatorial: 00h55m19.85s, +46d12m56.9s (Gaia)
  • Galactic: l= 123.63, b=-16.65
Finding Chart:
Bikmaev et al. (2006)
Optical: G=14.8 (Gaia); X-rays: 1.9x10-11 ergs cm-2s-1 (BAT 157m; 14-195 keV), 2.6x10-11 ergs cm-2s-1 (4XMM-DR11)
IP Credential:
**** (Confirmed): The spin period is well-established through X-ray and optical observations. The orbital period is mainly infered from the spin and beat period (also seen in optical photometry), without precise determination from optical spectroscopy.
  • Orbital: 0.1137953 d = 2.731087 hr = 9831.914 s (inferred)
  • Spin: 0.0053875571 d = 7.7580822 min = 465.48493 s, seen in X-ray and optical photometry.
    BJD(max) = 2454743.146425 (23) + 0.0053875571 (8) E
    (Kozhevnikov 2012) from optical photometry, also seen in X-rays (465.68 s with RXTE; the 469.75s period seen with XMM-Newton is likely to be a blend of this and the beat period)
  • Others: 0.005655303 d = 8.143637 min = 488.61822 s
    BJD(max) = 2454743.150323 (20) + 0.0056553035 (10) E
    (Kozhevnikov 2012) from optical photometry.
930.1 (910.2-946.7) pc (Gaia EDR3; parallax: 1.044+/-0.025 mas)


  1. Bikmaev et al. 2006 (optical identification)
  2. Butters et al. 2008 (X-ray timing)
  3. Bonnet-Bidaud et al. 2009, ATel 1895 (X-ray pulsation)
  4. Revnivtsev et al. 2010 (optical photometry)
  5. Kozhevnikov 2012 (optical photometry)
  6. Bernardini et al. 2012 (X-rays)
  7. Suleimanov, Doroshenko & Werner 2019 (X-ray spectroscopy)
  8. Shaw et al. 2020 (X-ray spectroscopy)
  9. Covington et al. 2022 (optical photometry)

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Please send your comments, suggestions etc. to Koji.Mukai@nasa.gov and/or Koji.Mukai@umbc.edu
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