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Name
  RT And  
AAVSO UID
000-BCR-283 (11720 observations)  
Constellation
Andromeda Sequence
J2000.0
23 11 10.10 +53 01 33.0  (347.79208 +53.02583) Search nearby
B1950.0 23 08 55.51 +52 45 15.5
Proper motion
RA: -7.620 +/- 0.087 mas/yDec: -21.830 +/- 0.090 mas/ySource: Gaia DR1
Galactic coord. 108.058 -6.926
Other names

(Internal only)
1RXS J231109.9+530123 1SWASP J231110.09+530133.0 2MASS J23111009+5301330
AAVSO 2306+52 AN 79.1901 BD+52 3383
GSC 03998-02167 HIP 114484 TYC 3998-2167-1
UCAC4 716-108891 URAT1 716-508808 USNO-B1.0 1430-0544229
WISE J231110.09+530132.8    
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Variability type
EA/RS
Spectral type F8V+K0V
Mag. range
8.93 - 9.85 V
Discoverer --
Epoch
24 Jan 2008 (HJD 2454489.652) Ephemeris
Outburst --
Period 0.6289285 d  (15.09428 h)
Rise/eclipse dur. 17%
Remarks
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1 Otero, Sebastian Alberto Min I amplitude is 0.85 V. Min II amplitude is 0.23 V. Nonlinear term: -6.33*10**(-11)*E**2. Period changes according to a sine law are possible (1975MitVS...6..172A). The migration period of the distortion wave has P= 6.6 years (2002AN....323...31E).
2 GCVS Team Min II 8.88; DI = DII = 0.17P; dI = dII = 0.00. P var. Nonlinear term: -6.33*10**(-11)*E**2. During JD2433477 - 43878 linear elements are satisfactory: Min = 2441141.8888 + 0.62892984d*E. Period changes according to a sine law are possible [P.Ahnert, MVS 6, H. 8, 172, 1975.].
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References
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1 Butters, O. W.; et al., 2010, The first WASP public data release 2010A&A...520L..10B
2 Eker, Z.; et al., 2006, Dynamical evolution of active detached binaries on
the logJo-logM diagram and contact binary formation
2006MNRAS.373.1483E
3 Ekmekci, F.; Özeren, F. F.; Ak, H., 2002, Chromospherically active binary
systems, RT And and ER Vul: 1995-1998 observations and spot distributions
2002AN....323...31E
4 Perryman, M. A. C.; et al., 1997, The HIPPARCOS and TYCHO catalogues 1997HIP...C......0E
5 D.S.Hall, J.M.Kreiner, AA 30, 387, 1980. 1980AcA....30..387H
6 P. Ahnert, MVS 6, H. 8, 172, 1975 1975MitVS...6..172A
7 Sternberg, B., 1927, Messungen von veranderlichen Sternen in der Jahren
1925-1926
1927PAICU...7D...1S
8 Bob Nelson's O-C files, 2016 --
9 J.Gadomski, WARS Publ 4, 41, 1929. --
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 = 8.04H = 7.78K = 7.69J - K = 0.35
AllWISE W1 = 7.43W2 = 7.50W3 = 7.47W4 = 7.49W1 - W2 = -0.07W3 - W4 = -0.01
APASS-DR9
Images
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Supporting Documents
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1 Phase Plot Sergey, Ivan 2017-03-31 14:08 UTC
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Revision History
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5 Otero, Sebastian Alberto 2017-09-07 17:49 UTC Range and amplitudes from AAVSO and HIPPARCOS data. Spectral type from 2006MNRAS.373.1483E.
4 Sergey, Ivan 2017-03-31 14:08 UTC Period and epoch from AAVSO and SuperWASP data. Position from UCAC4.
3 Billiaert, Bruno 2015-05-27 05:34 UTC Reference added.
2 Admin, VSX 2010-01-04 23:43 UTC Update from the GCVS version of November 2009.
1 Admin, VSX 2005-12-17 20:33 UTC Initial upload.