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Latest Details
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Name
  SY Cnc  
AAVSO UID
000-BBQ-187 (32724 observations)  
Constellation
Cancer Sequence
J2000.0
09 01 03.31 +17 53 56.0  (135.26379 +17.89889) Search nearby
B1950.0 08 58 14.31 +18 05 43.7
Proper motion
RA: -28.9 +/- 0.9 mas/yDec: -2.8 +/- 1.4 mas/ySource: UCAC4
Galactic coord. 210.011 +36.441
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
1RXS J090103.8+175356 2MASS J09010332+1753561 AAVSO 0855+18
AN 401.1929 ASAS J090103+1753.9 ASASSN-V J090103.24+175355.6
BD+18 2101 Downes SY Cnc GSC 01397-00817
IOMC 1397000039 KP 105756 PG 0858+181
SVS 228 UCAC4 540-048343  
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Variability type
UGZ
Spectral type pec(UG)+G8
Mag. range
11.0 - 14.0 V
Discoverer Lidiya Ceraski (1929)
Epoch
--
Outburst --
Period 0.3823753 d  (9.17701 h)
Rise/eclipse dur. --
Remarks
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1 GCVS Team Flickering with P ~20s - 34s [I.Nevo, D.Sadeh, MN 182, 595, 1978.]. Spectral investigation [A.N.Burenkov, N.F.Vojkhanskaya, Pis'ma Astron. Zh. 5, N9, 452, 1979.].
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References
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1 Landolt, A. U.; Clem, J. L., 2018, The Dwarf Nova SY Cancri and its
Environs
2018JAVSO..46...50L
2 J. Alfonso-Garzon, A. Domingo, J.M. Mas-Hesse, A. Gimenez, 2012,
arXiv:1210.0821 [astro-ph.IM] (online info)
2012arXiv1210.0821A
3 J. Casares, I.G. Martinez-Pais, P. Rodriguez-Gil, 2009, arXiv:0907.4432v1
[astro-ph.SR]
2009arXiv0907.4432C
4 Light curve from CRTS/CSS (Drake et al. 2009, ApJ, 696, 870) 2009ApJ...696..870D
5 J. Pepper, K.Z. Stanek, R.W. Pogge et al., 2008, AJ 135, 907 2008AJ....135..907P
6 R.A.Downes, 2001, PASP 113, 764 (2006 archival) 2005JAD....11....2D
7 A spectroscopic search for faint secondaries in cataclysmic variables 2003MNRAS.342..151P
8 G.Pojmanski, Acta Astronomica 52, 397, 2002. 2002AcA....52..397P
9 R.A. Downes et al., 2001, PASP 113, 764 2001PASP..113..764D
10 A.Brun, M.Petit, Perem. Zvezdy 12, N1, 18, 1959. 1957PZ.....12...18B
11 W.Wenzel, MVS N211, 1955. --
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 = 11.27H = 11.05K = 10.92J - K = 0.35
AllWISE W1 = 10.97W2 = 10.95W3 = 11.17W1 - W2 = 0.02
APASS-DR9 B = 12.47V = 12.25g' = 12.70r' = 12.55i' = 12.12B - V = 0.22
SDSS-DR12 u = 13.79g = 12.13r = 12.20i = 12.21z = 13.28u - g = 1.66r - i = -0.01
Images
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Supporting Documents
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Campaigns/Programs
 Z CamPaign
 Legacy CVs
Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
4 Fernig, Leo 2022-06-20 18:16 UTC Discoverer added from 2018JAVSO..46...50L
3 Salvo Bazan, Raul Domingo 2014-09-20 03:55 UTC Range from ASAS-3 data. Spectral type of the cool component from 2009arXiv0907.4432C. UCAC4 position.
2 Admin, VSX 2009-07-29 01:38 UTC Update from [2009arXiv0907.4432C].
1 Admin, VSX 2005-12-18 01:33 UTC Initial upload.