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Name
  U Cru  
AAVSO UID
000-BBS-921 (728 observations)  
Constellation
Crux Sequence
J2000.0
12 32 23.74 -57 34 58.9  (188.09892 -57.58303) Search nearby
B1950.0 12 29 35.87 -57 18 25.6
Proper motion
RA: 4.6 +/- 1.6 mas/yDec: -4.9 +/- 1.6 mas/ySource: UCAC4
Galactic coord. 300.371 +5.194
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
2MASS J12322374-5734587 AAVSO 1226-57 ASAS J123223-5735.0
ASASSN-V J123223.71-573458.4 GSC 08654-03384 HD 109090
HV 74 IOMC 8654000042 IRAS 12295-5718
TYC 8654-3384-1    
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Variability type
M
Spectral type M4e-M8e
Mag. range
9.6 - <14.9 V
Discoverer Williamina Fleming (1896)
Epoch
15 Jun 2003 (HJD 2452806) Ephemeris
Outburst --
Period 343 d
Rise/eclipse dur. --
Remarks
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1 GCVS Team P var. Max = 2410143 + 351.4d*E (JD2410100 - 14100) [A.Cannon, HA 55, part 1, 1907.]; since JD2437600 - see Table.
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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 G.Pojmanski, Acta Astronomica 52, 397, 2002. 2002AcA....52..397P
3 F.M.Bateson, A.F.Jones, B.Menzies, NZ Circ N141, 1970. --
4 F.M.Bateson, A.F.Jones, I.Stranson, Charts for Southern Variables ser.3,
1966.
--
5 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 = 4.52H = 3.27K = 2.54J - K = 1.99
AllWISE W3 = 0.17W4 = -0.71W3 - W4 = 0.88
APASS-DR9 B = 13.29V = 11.86g' = 14.12r' = 11.34B - V = 1.43
Images
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Supporting Documents
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Revision History
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4 Fernig, Leo 2022-04-22 13:32 UTC Discoverer updated from 1907AnHar..55....1C page 16
3 Otero, Sebastian Alberto 2012-02-17 23:56 UTC Primary record creation. Period, epoch and range from ASAS-3 data. UCAC3 position. Spectral type from Skiff (2010).
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.