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Name
  U Hya  
AAVSO UID
000-BBR-567 (10837 observations)  
Constellation
Hydra Sequence
J2000.0
10 37 33.27 -13 23 04.4  (159.38862 -13.38456) Search nearby
B1950.0 10 35 05.02 -13 07 26.3
Proper motion
RA: 42.59 +/- 0.24 mas/yDec: -37.72 +/- 0.18 mas/ySource: F. Van Leeuwen, 2007
Galactic coord. 259.966 +38.074
Other names

(Internal only)
AAVSO 1032-12 BD-12 3218 HD 92055
HIP 52009 HR 4163 IRC -10242
RAFGL 1427 SAO 156110  
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Variability type
SRB
Spectral type C6.5,3(N2)(Tc)
Mag. range
4.56 - 5.4 V
Discoverer Benjamin Gould (1871)
Epoch
30 Jun 2007 (HJD 2454282.0) Ephemeris
Outburst --
Period 389.4 d
Rise/eclipse dur. --
Remarks
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1 Otero, Sebastian Alberto Other period is 217 d. (T0= 2453775).
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References
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1 S. Uttenthaler, 2013, Period - mass-loss rate relation of Miras with and
without technetium		 2013A&A...556A..38U
2 A.Biskupski, H.Kaczmarek, Urania 32, N1, 1961. --
3 Cannon, A. J., 1907, Second catalogue of variable stars 1907AnHar..55....1C
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 = 0.80H = -0.25K = -0.72J - K = 1.52
AllWISE W3 = -1.41W4 = -2.15W3 - W4 = 0.75
GALEX-DR5 NUV = 18.60
Images
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Supporting Documents
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2 Secondary period Otero, Sebastian Alberto 2011-05-09 22:09 UTC Light curve with the secondary period (217 d.) with V-data from the literature.
1 Phase plot Otero, Sebastian Alberto 2011-05-09 22:03 UTC Light curve with all V-data compiled from the literature.
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Campaigns/Programs
 Binocular program
 LPV Program
Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
5 Fernig, Leo 2022-04-22 13:31 UTC Discoverer updated from 1907AnHar..55....1C page 15
4 Bernhard, Klaus 2018-11-07 01:59 UTC Period from 2013A&A...556A..38U.
3 Otero, Sebastian Alberto 2011-05-09 22:03 UTC V-range, period and epoch from the literature.
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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