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Latest Details
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Name
  AY Cet  
AAVSO UID
000-BCV-440 (51 observations)  
Constellation
Cetus Sequence
J2000.0
01 16 36.29 -02 30 01.3  (19.15121 -2.50036) Search nearby
B1950.0 01 14 03.89 -02 45 46.7
Proper motion
RA: -99.43 mas/yDec: -63.55 mas/ySource: F. Van Leeuwen, 2007
Galactic coord. 137.746 -64.646
Other names

(Internal only)
39 Cet 1RXS J011636.5-023000 AAVSO 0111-03
BD-03 172 EUVE J0116-02.5 GSC 04682-00108
HD 7672 HIP 5951 HR 373
IRAS 01140-0245 PPM 183240 SAO 129204
TYC 4682-108-1 WDS J01166-0230A  
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Variability type
RS
Spectral type G5III+WD
Mag. range
5.35 - 5.58 V
Discoverer --
Epoch
08 Feb 1991 (HJD 2448295.63) Ephemeris
Outburst --
Period 76.5 d
Rise/eclipse dur. --
Remarks
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1 Salvo Bazan, Raul Domingo Variable period. Long period of 1820 d. (2011AN....332..925T). Spectroscopic period 56.8147 d. Non-synchronous system. B-V= 0.89
2 Admin, VSX Rotation period of 75-78 days.
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References
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1 Tautvaišienė, G.; et al., 2011, Chemical composition of AY Ceti: A
flaring, spotted star with a white dwarf companion
2011AN....332..925T
2 Perryman, M. A. C., 1997, The HIPPARCOS and TYCHO catalogues 1997HIP...C......0E
3 F.C. Fekel, J.J. Eitter, 1989, AJ 97, 1139 1989AJ.....97.1139F
4 J.R.Percy, D.L.Welch, JRAS Can 76, N3, 185, 1982. 1982JRASC..76..185P
External Links
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Location    Go   
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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 = 4.07H = 3.39K = 3.38J - K = 0.68
AllWISE W2 = 2.93W3 = 3.15W4 = 3.10W3 - W4 = 0.05
SDSS-DR12 u = 7.95g = 6.38r = 9.83i = 9.03z = 5.82u - g = 1.57r - i = 0.81
Images
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Supporting Documents
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1 Phase plot Salvo Bazan, Raul Domingo 2014-02-07 10:20 UTC
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Revision History
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4 Salvo Bazan, Raul Domingo 2014-02-02 03:36 UTC Spectral type, long period and color index from 2011AN....332..925T. Epoch and period from HIPPARCOS data. Spectroscopic period from 2004A&26A...424..727P
3 Admin, VSX 2010-06-10 00:17 UTC Update from [1989AJ.....97.1139F].
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.