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Name |
VY Scl |
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AAVSO UID |
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Constellation |
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J2000.0 |
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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 |
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Galactic coord. |
19.745 -71.714 |
Other names
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(Internal only)
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Please note that aliases shown in grey link to obsolete records.
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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 |
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Spectral type |
pec(cont+e) |
Mag. range |
11.8 - 18.6 V |
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Discoverer |
-- |
Epoch |
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Outburst |
-- |
Period |
0.232 d (5.6 h) |
Rise/eclipse dur. |
-- |
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Remarks
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Some references may be clicked to view in new window. Roll over index number to view submission details.
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1 |
Linnolt, Mike
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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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Click reference title/citation to view in new window. Roll over index number to view submission details.
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1 |
vsnet-alert 9787 |
-- |
2 |
Gaia Alerts, 2019 (online data) |
-- |
3 |
Coppejans, D. L.; et al., 2016, Statistical properties of dwarf novae-type cataclysmic variables: the outburst catalogue |
2016MNRAS.456.4441C |
4 |
Drake, A. J.; et al., 2014, Cataclysmic variables from the Catalina Real-time Transient Survey |
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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Catalog Data
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Information from selected catalogs obtained by cross-matching to 2 arc seconds using the CDS X-Match Service. These data may not be complete.
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2MASS
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J = 12.84 | H = 12.79 | K = 12.70 | J - K = 0.14 |
AllWISE
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W1 = 12.51 | W2 = 12.40 | W3 = 11.79 | W1 - W2 = 0.11 |
APASS-DR9
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B = 13.33 | V = 13.24 | g' = 13.22 | r' = 13.31 | i' = 13.44 | B - V = 0.09 |
GALEX-DR5
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FUV = 14.02 | NUV = 13.76 | FUV - NUV = 0.26 |
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Images
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Supporting Documents
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Revision History
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