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Name
  HW Vir  
AAVSO UID
000-BFP-597 (2130 observations)  
Constellation
Virgo Sequence
J2000.0
12 44 20.24 -08 40 16.8  (191.08433 -8.67133) Search nearby
B1950.0 12 41 44.62 -08 23 51.4
Proper motion
RA: 7.52 +/- 1.88 mas/yDec: -14.44 +/- 1.35 mas/ySource: F. Van Leeuwen, 2007
Galactic coord. 299.934 +54.159
Other names

(Internal only)
ASAS J124420-0840.3 BD-07 3477 HIP 62157
IOMC 5528000022 PG 1241-084 PPM 195791
TYC 5528-629-1    
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Variability type
EA/HW
Spectral type sdB+dM
Mag. range
10.48 - 11.38 V
Discoverer --
Epoch
13 Aug 2002 (HJD 2452500.0552) Ephemeris
Outburst --
Period 0.11671948 d  (2.801268 h)
Rise/eclipse dur. 12%
Remarks
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1 Otero, Sebastian Alberto Min II= 10.62 V.
2 Renz, Wolfgang Its an (non-eclipsing,) circuumstellar exoplanet system that was found by the exoplanet's light time effect in the O-C values of the close dwarf system binary eclipses.
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References
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1 J. Alfonso-Garzon, A. Domingo, J.M. Mas-Hesse, A. Gimenez, 2012,
arXiv:1210.0821 [astro-ph.IM] (online info)
2012arXiv1210.0821A
2 The sdB+M Eclipsing System HW Virginis and its Circumbinary Planets 2009AJ....137.3181L
3 J.M. Kreiner, 2004, Acta Astronomica 54, 207 2004AcA....54..207K
4 Pojmanski, G., 2002, The All Sky Automated Survey 2002AcA....52..397P
5 Wood J.H., Zhang E.O., Robinson E.L., 1993, MNRAS, 261, 103 1993MNRAS.261..103W
6 Extrasolar Planets Encyclopaedia - Candidates detected by timing - HW Vir --
7 Bob Nelson's O-C files, 2016 --
8 SAAO Report 1985,20,1986. --
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 = 10.97H = 11.09K = 11.12J - K = -0.15
AllWISE W1 = 11.40W2 = 11.46W3 = 11.31W1 - W2 = -0.06
APASS-DR9 B = 10.38V = 10.58g' = 10.46r' = 10.85i' = 11.27B - V = -0.20
SDSS-DR12 u = 10.79g = 10.36r = 10.81i = 11.13z = 11.88u - g = 0.43r - i = -0.32
Images
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Supporting Documents
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Revision History
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5 Admin, VSX 2017-12-26 16:32 UTC Added HW Vir-subtype.
4 Otero, Sebastian Alberto 2014-02-07 21:54 UTC Period, eclipse duration and range from ASAS-3 data.
3 Admin, VSX 2009-03-11 21:49 UTC Update from [2004AcA....54..207K].
2 Wils, Patrick 2007-08-29 21:29 UTC Period given. Poistion from Tycho.
1 Admin, VSX 2005-12-17 20:33 UTC Initial database population.