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Latest Details
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Name
  UX Ari  
AAVSO UID
000-BCT-820 (79 observations)  
Constellation
Aries Sequence
J2000.0
03 26 35.39 +28 42 54.3  (51.64746 +28.71508) Search nearby
B1950.0 03 23 33.06 +28 32 32.4
Proper motion
RA: 41.65 +/- 0.73 mas/yDec: -104.03 +/- 0.63 mas/ySource: F. Van Leeuwen, 2007
Galactic coord. 159.549 -22.913
Other names

(Internal only)
1RXS J032635.1+284302 AAVSO 0320+28 BD+28 532
GJ 141.1 HD 21242 HIP 16042
PPM 92507 SAO 75927 X 03228+285
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Variability type
RS
Spectral type K0IV+G5V
Mag. range
6.35 - 6.71 V
Discoverer --
Epoch
01 Sep 1991 (HJD 2448500.61) Ephemeris
Outburst --
Period 6.388 d
Rise/eclipse dur. --
Remarks
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1 GCVS Team T = 2440133.766 + 6.43791d*E [R.C.Carlos, D.M.Popper, PASP 83, 504, 1971.], where T is epoch of conjunction (G5 component is behind K0 component). Brightness varies in waves with a period ~Porb, but the phase psi of light minimum calculated according to the elements given above changes with time: psi = 0.1P (1972 - 1974), psi = 0.8P (1976), psi = 0.7P (1977), psi = 0.6P (1978). Mean brightness varies, amplitude of the wave varies from 0.04m up to 0.15m.
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References
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1 Aarum Ulvas, V., Henry, G. W., 2003, BV photometry of UX Ari in the period
1987-2002		 2003A&A...402.1033A
2 The Hipparcos and Tycho Catalogues, Variability Annex: Periodic variables,
1997		 1997HIP...C......0E
3 E.J.Weiler, F.N.Owen, B.W.Bopp, M.Schmitz, D.S.Hall, D.A.Fraquelli,
V.Piirola, M.Ryle, D.M.Gibson, ApJ 225, 919, 1978.		 1978ApJ...225..919W
External Links
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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 = 4.79H = 4.07K = 4.03J - K = 0.76
AllWISE W2 = 3.59W3 = 3.77W4 = 3.66W3 - W4 = 0.12
Images
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Supporting Documents
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Revision History
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4 Otero, Sebastian Alberto 2012-08-16 01:20 UTC Spectral type and range from 2003A&A...402.1033A.
3 Admin, VSX 2012-03-15 03:43 UTC Update from [1997HIP...C......0E].
2 Admin, VSX 2010-01-05 04:43 UTC Update from the GCVS version of November 2009.
1 Admin, VSX 2005-12-18 01:33 UTC Initial upload.

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