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Name
  T Cha  
AAVSO UID
000-BCV-459 (21423 observations)  
Constellation
Chamaeleon Sequence
J2000.0
11 57 13.53 -79 21 31.5  (179.30638 -79.35875) Search nearby
B1950.0 11 54 46.69 -79 04 49.0
Proper motion
RA: -41.656 +/- 0.197 mas/yDec: -8.650 +/- 0.190 mas/ySource: Gaia DR1
Galactic coord. 300.342 -16.761
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
AAVSO 1152-78 AN 28.1916 ASAS J115713-7921.5
GSC 09419-01187 HBC 591 HIP 58285
HV 3383 TYC 9419-1187-1  
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Variability type
INSB
Spectral type G8/K0e
Mag. range
10.09 - 14.5 V
Discoverer --
Epoch
26 Jan 2001 (HJD 2451935.500) Ephemeris
Outburst --
Period 3.253: d
Rise/eclipse dur. --
Remarks
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1 Otero, Sebastian Alberto J-K= 2.00; B-V= 1.2. Possible UXOR according to 2006noao.prop..348R, but they give a spectral type F5.
2 GCVS Team Occasionally quasiperiodic light changes are observed with periods 3.2323d, 3.4375d, 4.1800d, 3.2436d operating during 6 - 26 cycles. IR excess.
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References
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1 J.R. Percy et al., 2010, eJAAVSO 124 2010JAVSO..38..151P
2 Rodgers, B.; Garcia, J., 2006, SMARTS Monitoring for Southern UXOR Stars 2006noao.prop..348R
3 G.Pojmanski, Acta Astronomica 52, 397, 2002. 2002AcA....52..397P
4 C.Hoffmeister, VSS 3, N3, 1958. --
5 F.M.Bateson, A.F.Jones, Charts for Southern Variables, ser.II, 1960. --
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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 = 8.96H = 7.86K = 6.95J - K = 2.00
AllWISE W1 = 5.86W2 = 5.04W3 = 4.66W4 = 2.57W1 - W2 = 0.81W3 - W4 = 2.10
APASS-DR9 B = 14.32V = 12.66g' = 13.48r' = 12.05i' = 11.31B - V = 1.67
Images
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Supporting Documents
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Revision History
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5 Otero, Sebastian Alberto 2018-06-10 20:45 UTC Primary record creation.
4 Otero, Sebastian Alberto 2012-12-14 20:44 UTC Period and minimum magnitude from ASAS-3 data. Spectral type from Skiff (2012). HIPPARCOS position.
3 Admin, VSX 2010-06-14 22:00 UTC Update from [J.R. Percy et al., 2010, eJAAVSO 124].
2 Admin, VSX 2010-01-04 23:43 UTC Position updated from the GCVS version of November 2009.
1 Admin, VSX 2005-12-17 20:33 UTC Initial upload.