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Details for Revision 3
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  VY Scl  
000-BCR-581 (4157 observations)  
Sculptor Sequence
23 29 00.50 -29 46 46.0  (352.25208 -29.77944) Search nearby
B1950.0 23 26 21.37 -30 03 18.3
Galactic coord. 19.745 -71.714
Other names

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AAVSO 2323-30 Downes VY Scl GD 1662
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Variability type
Spectral type pec(cont+e)
Mag. range
11.8:V - 18.5 p
Discoverer --
Outburst --
Period 0.232 d  (5.6 h)
Rise/eclipse dur. --
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1 Linnolt, Mike AAVSO observer LMK reported it to be unusually bright (V=11.8) Dec 30, 2007. It shows relatively large variation. For example, ASAS-3 recorded V=12.23 on June 29, 2004 and also recorded five outbursts in 2002 (amplitudes typically 1 mag or slightly less with intervals of 1.5-3 months). Historically, Koshiro probably recorded this type of variation in Nov 1988 (reaching mag 12.2). Such behavior has not been documented (as far as known) and needs further study.
2 GCVS Team Porb = 0.1662d? [J.B.Hutchings, A.P.Cowley, PASP 96, 559, 1984.]. High and low states of the system are observed.
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1 Coppejans, D. L.; et al., 2016, Statistical properties of dwarf novae-type
cataclysmic variables: the outburst catalogue
2 Drake, A. J.; et al., 2014, Cataclysmic variables from the Catalina
Real-time Transient Survey
3 Catalina Real-time Transient Survey, 2012 (SSS Data) 2009ApJ...696..870D
4 R.A.Downes, 2001, PASP 113, 764 (2006 archival) 2005JAD....11....2D
5 T. Kato, R. Ishioka, M. Uemura, 2002, PASJ 54, 1033 2002PASJ...54.1033K
6 R.A.Downes, 2001, PASP 113, 764 2001PASP..113..764D
7 J.F.Burrell, J.R.Mould, PASP 85, 627, 1973. 1973PASP...85..627B
8 vsnet-alert 9787 --
9 P.Pismis, TTB 6, N38, 197, 1972. --
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Revision History
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5 Bernhard, Klaus 2017-01-31 21:05 UTC PPMXL position. CRTS identification from 2016MNRAS.456.4441C.
4 Admin, VSX 2010-01-04 23:43 UTC Position updated from the GCVS version of November 2009.
3 Admin, VSX 2009-09-21 17:28 UTC Update from [2002PASJ...54.1033K].
2 Linnolt, Mike 2008-05-08 23:07 UTC Maximum magnitude revised, based upon visual observations by LMK.
1 Admin, VSX 2005-12-17 20:33 UTC Initial database population.