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Name
  VX Hya  
AAVSO UID
000-BBQ-735 (22208 observations)  
Constellation
Hydra Sequence
J2000.0
09 45 46.85 -12 00 14.3  (146.44520 -12.00399) Search nearby
B1950.0 09 43 20.97 -11 46 22.5
Proper motion
RA: -4.254 +/- 0.228 mas/yDec: 8.106 +/- 0.157 mas/ySource: Gaia DR1
Galactic coord. 247.741 +30.354
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
AAVSO 0940-11 AN 79.1931 ASAS J094547-1200.2
HIP 47904 IOMC 5482000011  
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Variability type
HADS(B)
Spectral type F2Ib-F8
Mag. range
10.21 - 10.96 V
Discoverer --
Epoch
21 Nov 2000 (HJD 2451870.213) Ephemeris
Outburst --
Period 0.2233889 d  (5.36133 h)
Rise/eclipse dur. --
Remarks
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1 GCVS Team (k - b)2 = 0.26. Luminosity class [G.H.Herbig, ApJ 131, 632, 1960.] contradicts the type of light variability. The shape of the light curve strongly varies. The main oscillation with the period P0 given in the Table is superimposed by the secondary one with P1 = 0.172720d [W.S.Fitch, ApJ 143, 852, 1966.]. P1/P0 = 0.773; Pb = 0.761445d.
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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 M.R. Templeton et al. 2009, PASP 121, 1076 2009PASP..121.1076T
3 G.Pojmanski, Acta Astronomica 52, 397, 2002. 2002AcA....52..397P
4 W.S. Fitch, 1966, ApJ 143, 852 1966ApJ...143..852F
5 W.S.Fitch, PASP 73, 325, 1962. 1961PASP...73..325F
6 C.Hoffmeister, AN 242, 129, 1931. 1931AN....242..129H
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 = 9.96H = 9.77K = 9.70J - K = 0.26
AllWISE W1 = 9.67W2 = 9.70W3 = 9.63W1 - W2 = -0.02
APASS-DR9 B = 10.74V = 10.48g' = 10.58r' = 10.48i' = 10.48B - V = 0.26
GALEX-DR5 FUV = 19.61NUV = 14.77FUV - NUV = 4.84
Images
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Supporting Documents
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Revision History
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3 Otero, Sebastian Alberto 2018-06-10 20:45 UTC Primary record creation.
2 Admin, VSX 2009-09-26 23:18 UTC Update from [1966ApJ...143..852F].
1 Admin, VSX 2005-12-17 20:33 UTC Initial upload.