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Details for Revision 2
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Name
  V Hya  
AAVSO UID
000-BBR-784 (9936 observations)  
Constellation
Hydra Sequence
J2000.0
10 51 37.25 -21 15 00.3  (162.90521 -21.25008) Search nearby
B1950.0 10 49 11.24 -20 59 03.9
Galactic coord. 268.965 +33.601
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
AAVSO 1046-20 ASAS J105137-2115.0 BD-20 3283
HIP 53085 IRC -20218 RAFGL 1439
SAO 179278    
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Variability type
SRA
Spectral type C6,3e-C7,5e(N6e)
Mag. range
10.9 - 16.0 p
Discoverer --
Epoch
14 Jul 1943 (HJD 2430920) Ephemeris
Outburst --
Period 530.7 d
Rise/eclipse dur. 50%  (265.350000000000 d)
Remarks
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1 Otero, Sebastian Alberto Recent cycles (ASAS-3 data, 2000-2009) show a perod of 519 d.
2 GCVS Team VB A (B 11.58mV, KO III, 46", 186deg). Mean brightness variations with P = 6670d and A = 3.5m are superimposed by light oscillations with A = 1.1m - 2m and elements given in the Table. Deep light minima were observed in 1891, 1908, 1925, 1942 - 43, 1959, and 1962. A graph of the light curve [M.W.Mayall, JRAS Can 59, 245, 1965.].
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References
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1 G.Pojmanski, Acta Astronomica 52, 397, 2002. 2002AcA....52..397P
2 K.C.Leung, BAAS 5, N4, part I, 415, 1973. 1973BAAS....5..415L
3 Cannon, A. J., 1907, Second catalogue of variable stars 1907AnHar..55....1C
External Links
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Supporting Documents
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1 Historical light curve Otero, Sebastian Alberto 2011-05-10 01:09 UTC Light curve with all V-data available from the literature and visual data from the AAVSO International Database adjusted to the V-magnitude scale.
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Campaigns/Programs
 Binocular program
 LPV Program
 Legacy LPV South
 Percy's Unusual LPVs
Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
4 Fernig, Leo 2022-04-22 13:31 UTC Discoverer updated from 1907AnHar..55....1C page 15
3 Otero, Sebastian Alberto 2011-05-10 01:09 UTC Visual range adopted from the available V-data and AAVSO visual light curve adjusted to the V-mag. scale.
2 Admin, VSX 2010-01-05 04:43 UTC Position updated from the GCVS version of November 2009.
1 Admin, VSX 2005-12-18 01:33 UTC Initial upload.

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