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Latest Details
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Name
  HU Aqr  
AAVSO UID
000-BCT-614 (4685 observations)  
Constellation
Aquarius Sequence
J2000.0
21 07 58.19 -05 17 40.6  (316.99246 -5.29461) Search nearby
B1950.0 21 05 20.34 -05 29 46.8
Proper motion
RA: -61.9 +/- 4.5 mas/yDec: -55.1 +/- 5.0 mas/ySource: UCAC4
Galactic coord. 44.762 -32.638
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
1RXH J210758.2-051741 1RXS J210758.5-051744 1SWXRT J210758.1-051740
1SXPS J210758.1-051741 1WGA J2107.9-0517 2MASS J21075818-0517404
2RXS J210758.2-051743 2XMM J210758.1-051740 3XMM J210758.1-051740
AAVSO 2102-05 ASASSN-V J210757.96-051740.6 ATO J316.9922-05.2948
CRTS J210758.1-051740 CRTS J210758.1-051741 Downes HU Aqr
GSC 05201-00849 Gaia20ctq X 2107-0518
ZTF18abrymfz    
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Variability type
AM+E
Spectral type M4.5V+pec(e)
Mag. range
14.8 - 19.8 V
Discoverer --
Epoch
17 Aug 1993 (HJD 2449217.3459) Ephemeris
Outburst --
Period 0.086820361 d  (2.0836887 h)
Rise/eclipse dur. 8.4%  (0.17503 h)
Remarks
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References
Click reference title/citation to view in new window. Roll over index number to view submission details.
1 Förster, F.; Cabrera-Vives, G.; Castillo-Navarrete, E.; et al., 2021, The
Automatic Learning for the Rapid Classification of Events (ALeRCE) Alert
Broker		 2021AJ....161..242F
2 Gaia Alerts, 2020 (online data) --
3 Gaia Collaboration; et al., 2018, Gaia Data Release 2. Summary of the
contents and survey properties		 2018A&A...616A...1G
4 Coppejans, D. L.; et al., 2016, Statistical properties of dwarf novae-type
cataclysmic variables: the outburst catalogue		 2016MNRAS.456.4441C
5 Drake, A. J.; et al., 2014, Cataclysmic variables from the Catalina
Real-time Transient Survey		 2014MNRAS.441.1186D
6 Light curve from CRTS/CSS (Drake et al. 2009, ApJ, 696, 870) 2009ApJ...696..870D
7 Hunting high and low: XMM monitoring of the eclipsing polar HU Aquarii 2009&A...496..833S
8 R.A.Downes, 2001, PASP 113, 764 (2006 archival) 2005JAD....11....2D
9 R.A. Downes et al., 2001, PASP 113, 764 2001PASP..113..764D
10 P.J.Hakala, M.G.Watson, O.Vilhu, B.J.M.Hassall, B.J.Kellett, K.O.Mason,
V.Piirola, MN 263, No.1, 61, 1993.		 1993MNRAS.263...61H
11 A.D.Schwope, H.-C.Thomas, K.Beuermann, AsAp 271, No.2, L25, 1993. 1993A&A...271L..25S
12 ZTF observations (Lasair), online data --
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 = 14.18H = 13.89K = 13.63J - K = 0.54
AllWISE W1 = 13.77W2 = 13.41W3 = 11.59W1 - W2 = 0.36
APASS-DR9 B = 16.28V = 16.18g' = 16.08r' = 16.43B - V = 0.10
GALEX-DR5 FUV = 18.39NUV = 18.46FUV - NUV = -0.08
Images
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Supporting Documents
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Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
8 Otero, Sebastian Alberto 2024-05-30 04:55 UTC Period and eclipse duration from AAVSO V data.
7 Otero, Sebastian Alberto 2021-07-05 13:36 UTC Gaia EDR3 position.
6 Otero, Sebastian Alberto 2020-06-26 03:09 UTC Gaia Alerts name and reference added.
5 Otero, Sebastian Alberto 2020-05-15 00:50 UTC Gaia DR2 position.
4 Bernhard, Klaus 2017-02-01 01:55 UTC PPMXL position. CRTS identification from 2016MNRAS.456.4441C.
3 Otero, Sebastian Alberto 2011-05-16 19:31 UTC Primary record creation. Type from reference. Maximum magnitude from CRTS/CSS data. UCAC3 position.
2 Admin, VSX 2010-01-05 04:43 UTC Update from the GCVS version of November 2009.
1 Admin, VSX 2005-12-18 01:33 UTC Initial upload.

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