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Name
  SDSS J141118.31+481257.6  
AAVSO UID
000-BJQ-852 (25295 observations)  
Constellation
Bo÷tes Sequence
J2000.0
14 11 18.32 +48 12 57.5  (212.82633 +48.21597) Search nearby
B1950.0 14 09 25.04 +48 27 01.9
Galactic coord. 91.890 +63.816
Other names

(Internal only)
1SWXRT J141118.2+481300 1SXPS J141117.9+481259 APM EO0120-0139877
APOP 56510+0010914 CSS_J141118.3+481258 CXO J141118.2+481257
CXOGSG J141118.2+481257 GALEX J141118.3+481257 GSC2.3 N5OE010914
PM J14113+4812 TCP J14111820+4812559 USNO-A2.0 1350-08389183
USNO-B1.0 1382-0271542    
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Variability type
UGWZ/IBWD
Spectral type --
Mag. range
12.4 V - 19.7 CV
Discoverer Scott F. Anderson, Daryl Haggard, Lee Homer, et. al.
Epoch
--
Outburst --
Period 0.032 d  (46 min)
Rise/eclipse dur. --
Remarks
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1 Schmeer, Patrick First ever recorded outburst detected by Tadashi Kojima at mag. 12.4 CR on 2018 May 19.514 UT (vsnet-alert 22174). No previous outbursts were recorded by the ASAS-SN Sky Patrol since 2012 March 18. Orbital period 46 ▒ 2 min (2007MNRAS.382.1643R). Gaia DR2 parallax 2.3613 ▒ 0.3048 mas (distance 0.42 ▒ 0.06 kpc); proper motion pmRA= -17.297, pmDE= +36.323 mas/yr.
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References
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1 K. Isogai; et. al., 2018, vsnet-alert #22186 --
2 K. Isogai; et. al., 2018, vsnet-alert #22181 --
3 T. Kojima; H. Maehara, 2018, vsnet-alert #22174 --
4 Kochanek, C. S.; et al., 2017, The All-Sky Automated Survey for Supernovae
(ASAS-SN) Light Curve Server v1.0
2017PASP..129j4502K
5 Drake, A. J.; et al., 2009, Catalina Real-time Transient Survey 2009ApJ...696..870D
6 Roelofs, G. H. A.; Groot, P. J.; Steeghs, D.; et. al., 2007, The
long-period AM CVn star SDSS J155252.48+320150.9
2007MNRAS.382.1643R
7 R.A. Downes et al., 2001, PASP 113, 764 (2006 archival version) 2005JAD....11....2D
8 Anderson, S. F.; Haggard, D.; Homer, L.; et. al., 2005, Ultracompact AM
Canum Venaticorum Binaries from the Sloan Digital Sky Survey: Three
Candidates Plus the First Confirmed Eclipsing System
2005AJ....130.2230A
9 R.A. Downes et al., 2001, PASP 113, 764 2001PASP..113..764D
10 CBAT "Transient Object Followup Reports" --
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.
GALEX-DR5 FUV = 20.35NUV = 19.56FUV - NUV = 0.79
SDSS-DR12 u = 19.36g = 19.46r = 19.66i = 19.83z = 20.06u - g = -0.10r - i = -0.17
Images
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Supporting Documents
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Revision History
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3 Schmeer, Patrick 2018-05-23 07:33 UTC Type from vsnet-alert #22181 and #22186.
2 Schmeer, Patrick 2018-05-20 07:08 UTC Gaia DR2 position. Type from vsnet-alert 22174. Maximum magnitude from CBAT "Transient Object Followup Reports" (K. Yoshimoto). Minimum magnitude from CRTS (CSS) data. Orbital period from 2007MNRAS.382.1643R. Discoverers added from 2005AJ....130.2230A.
1 Admin, VSX 2005-12-17 20:33 UTC Preserved original object data.