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Name
  TT Cnc  
AAVSO UID
000-BBP-712 (11191 observations)  
Constellation
Cancer Sequence
J2000.0
08 32 55.09 +13 11 28.0  (128.22953 +13.19110) Search nearby
B1950.0 08 30 09.06 +13 21 45.0
Proper motion
RA: -41.298 +/- 0.169 mas/yDec: -32.155 +/- 0.109 mas/ySource: Gaia DR1
Galactic coord. 212.093 +28.380
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
AAVSO 0827+13 AN 337.1934 ASAS J083255+1311.5
CSS_J083255.0+131127 HIP 41936 SVS 514
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Variability type
RRAB/BL
Spectral type A9-F4
Mag. range
10.931 - 11.572 V
Discoverer --
Epoch
06 Apr 2005 (HJD 2453467.2343) Ephemeris
Outburst --
Period 0.5634488 d  (13.52277 h)
Rise/eclipse dur. 18%
Remarks
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1 GCVS Team (k - b)2 = 0.11. P var. Before JD2430700 Max = JD2425647.452 + 0.5634445d*E [V.P.Zessewitsch, Stars of RR Lirae Type (in russian), Kiev, 1966.]. Since JD2439800 - see Table. Blazhko effect, Pi = 89d [B.Szeidl, IBVS N278, 1968.].
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References
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1 A.J. Drake, M. Catelan, S.G. Djorgovski et al., 2012, arXiv:1211.2866
[astro-ph.GA]
2012arXiv1211.2866D
2 D.M. Szczygiel, G. Pojmanski, B. Pilecki, 2009, arXiv:0906.2199v1
[astro-ph.SR]
2009arXiv0906.2199S
3 G.Pojmanski, Acta Astronomica 52, 397, 2002. 2002AcA....52..397P
4 B.Szeidl, IBVS N278, 1968. 1968IBVS..278....1S
5 R.D.McKnelly, AJ 53, 215, 1948. 1948AJ.....53..215M
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 = 10.25H = 9.97K = 9.88J - K = 0.36
AllWISE W1 = 9.92W2 = 9.95W3 = 10.01W1 - W2 = -0.03
APASS-DR9 B = 11.96V = 11.50g' = 11.71r' = 11.72i' = 11.18B - V = 0.47
SDSS-DR12 u = 14.73g = 10.87r = 10.86i = 10.87z = 13.11u - g = 3.86r - i = -0.01
Images
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Supporting Documents
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Revision History
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5 Admin, VSX 2015-12-18 21:45 UTC Updated variability type to indicate Blazhko effect.
4 Admin, VSX 2013-01-02 22:02 UTC Update from [2012arXiv1211.2866D].
3 Admin, VSX 2010-01-04 23:43 UTC Position updated from the GCVS version of November 2009.
2 Admin, VSX 2009-06-18 21:52 UTC Update from [2009arXiv0906.2199S].
1 Admin, VSX 2005-12-17 20:33 UTC Initial upload.