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Name
VY Scl
AAVSO UID
Constellation
J2000.0
B1950.0
23 26 21.39 -30 03 18.1
Proper motion
RA: -13.3 +/- 1.7 mas/y Dec: -4.4 +/- 1.0 mas/y Source: UCAC4
Galactic coord.
19.745 -71.714
Other names(Internal only)
Please note that aliases shown in grey link to obsolete records.
2RXS J232900.4-294702
AAVSO 2323-30
ATO J352.2519-29.7794
CRTS J232900.4-294646
CRTS J232900.5-294646
Downes VY Scl
EC 23263-3003
GD 1662
GSC 06986-00765
Gaia19ddr
UCAC4 302-276023
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Variability type
NL/VY
Spectral type
pec(cont+e)
Mag. range
11.8 - 18.6 V
Discoverer
--
Epoch
Outburst
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Period
0.232 d (5.6 h)
Rise/eclipse dur.
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Remarks
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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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References
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1
vsnet-alert 9787
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2
Gaia Alerts, 2019 (online data)
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3
Coppejans, D. L.; et al., 2016, Statistical properties of dwarf novae-type
2016MNRAS.456.4441C
4
Drake, A. J.; et al., 2014, Cataclysmic variables from the Catalina
2014MNRAS.441.1186D
5
Catalina Real-time Transient Survey, 2012 (SSS Data)
2009ApJ...696..870D
6
R.A. Downes et al., 2001, PASP 113, 764 (2006 archival version)
2005JAD....11....2D
7
T. Kato, R. Ishioka, M. Uemura, 2002, PASJ 54, 1033
2002PASJ...54.1033K
8
R.A. Downes et al., 2001, PASP 113, 764
2001PASP..113..764D
9
J.F.Burrell, J.R.Mould, PASP 85, 627, 1973.
1973PASP...85..627B
10
P.Pismis, TTB 6, N38, 197, 1972.
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External Links
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Location
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AAVSO Variable Star Plotter
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AAVSO WebObs
APASS
AAVSOnet EPD
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Downes
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ZTF
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Kamogata Wide-field Survey (KWS)
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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 = 12.84 H = 12.79 K = 12.70 J - K = 0.14
AllWISE
W1 = 12.51 W2 = 12.40 W3 = 11.79 W1 - W2 = 0.11
APASS-DR9
B = 13.33 V = 13.24 g' = 13.22 r' = 13.31 i' = 13.44 B - V = 0.09
GALEX-DR5
FUV = 14.02 NUV = 13.76 FUV - NUV = 0.26
Images
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Supporting Documents
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Revision History
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