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Name
  V0725 Tau  
AAVSO UID
000-BBJ-814 (3876 observations)  
Constellation
Taurus Sequence
J2000.0
05 38 54.57 +26 18 56.8  (84.72737 +26.31578) Search nearby
B1950.0 05 35 47.98 +26 17 18.1
Proper motion
RA: -0.620 +/- 0.102 mas/yDec: -2.803 +/- 0.070 mas/ySource: Gaia DR1
Galactic coord. 181.445 -2.644
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
1A 0535+262 1RXS J053855.1+261843 2MASS J05385458+2618568
A 0535+26 AAVSO 0532+26 AAVSO VAR? SW
AAVSO_DES 0533+26 D ASAS J053854+2618.9 ASASSN-V J053854.59+261854.2
BD+26 883 HD 245770 HDE 245770
HIP 26566 IOMC 1869000044 MWC 507
SAO 77348 SON 10795 TIC 75078662
TYC 1869-200-1 WISEA J053854.57+261856.9 X 05357+262
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Variability type
GCAS+HMXB/XP
Spectral type O9.7IIIe
Mag. range
8.88 - 9.47 V
Discoverer --
Epoch
--
Outburst --
Period 111.0 d
Rise/eclipse dur. --
Remarks
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1 GCVS Team SB1 (Porb = 110.8d [A.Guarnieri, A.Piccioni, C.Bartolini, P.Giovanelli, Istituto di Astrofisica Spaziale (Frascati, Italia), Rapparto Interno N20, 1983.]). X-ray outbursts occur periodically near the periastron passages of the pulsar with P = Porb. The amplitude of the corresponding variations of visual brightness of the system A(V) = 0.03m. The period of pulsar rotation Prot var [F.Nagase, S.Hayakawa, H.Kunieda, F.Makino, K.Masai, Y.Tawara, H.Inoue, N.Kawai, K.Koyama, K.Makishima, M.Matsuoka, T.Murakami, M.Oda, Y.Ogawara, T.Ohashi, N.Shibazaki, Y.Tanaka, S.Miyamoto, H.Tsunemi, K. Yamashita, I.Kondo, ApJ 263, 814, 1982.]. Prot = 104.17s (JD2442531), 103.806s (JD2442728), 103.882s (JD2443505), 103.8402s (JD2443620) [F.Li, S.Rappaport, G.W.Clark, J.G.Jernigan, ApJ 228, 893, 1979.]; 103.647s (JD2444521), 103.423s (JD2445292), 103.3429ss(JD2445623) [F.Nagase, S.Hayakawa, T.Ku, N.Sato, T.Ikegami, N.Kawai, K. Makishima, M.Matsuoka, K.Mitaki, T.Murakami, M.Oda, T.Ohashi, Y.Tanaka, Sh.Kitamoto, PAS Japan 36, N4, 667, 1984.].
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References
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1 J. Alfonso-Garzon, A. Domingo, J.M. Mas-Hesse, A. Gimenez, 2012,
arXiv:1210.0821 [astro-ph.IM] (online info)		 2012arXiv1210.0821A
2 Catalogue of high-mass X-ray binaries in the Galaxy (4th edition) 2006A&A...455.1165L
3 G.Pojmanski, Acta Astronomica 52, 397, 2002. 2002AcA....52..397P
4 Long-term variability of the Be/X-ray binary A0535+26 - III. Photometry 1999MNRAS.302..167C
5 F.Li, S.Rappaport, G.W.Clark, J.G.Jernigan, ApJ 228, 893, 1979. 1979ApJ...228..893L
6 M.Stier, W.Liller, ApJ 206, 257, 1976. 1976ApJ...206..257S
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Catalog Data
Information from selected catalogs obtained by cross-matching to 2 arc seconds using the CDS X-Match Service. These data may not be complete.
2MASS J = 8.37H = 8.27K = 8.16J - K = 0.21
AllWISE W1 = 7.11W2 = 6.93W3 = 6.17W4 = 5.21W1 - W2 = 0.17W3 - W4 = 0.96
APASS-DR9 g' = 10.22
Images
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Supporting Documents
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Revision History
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4 Otero, Sebastian Alberto 2011-05-30 19:37 UTC Reference added.
3 Otero, Sebastian Alberto 2011-05-30 19:37 UTC Primary record creation. Type and range from Clark et al. (1999). Orbital period from Liu et al. (2006)
2 Admin, VSX 2010-01-05 04:43 UTC Position updated from the GCVS version of November 2009.
1 Admin, VSX 2005-12-18 01:33 UTC Initial upload.

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