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Details for Revision 4
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Name
  T Cha  
AAVSO UID
000-BCV-459 (22594 observations)  
Constellation
Chamaeleon Sequence
J2000.0
11 57 13.53 -79 21 31.5  (179.30638 -79.35875) Search nearby
B1950.0 11 54 45.94 -79 04 49.4
Galactic coord. 300.342 -16.761
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
1RXS J115713.3-792122 2MASS J11571348-7921313 2RXS J115713.4-792124
AAVSO 1152-78 AN 28.1916 ASAS J115713-7921.5
ASAS J115715-7921.5 ASASSN-V J115713.41-792132.0 GSC 09419-01187
HBC 591 HIP 58285 HV 3383
IRAS 11547-7904 PDS 60 RX J1157.2-7921
SSTc2d J115713.5-792131 TIC 357019659 TYC 9419-1187-1
XMMSL2 J115714.0-792136 [K2001c] 49  
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Variability type
INSB
Spectral type G8/K0e
Mag. range
10.09 - 14.5 V
Discoverer --
Epoch
--
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 Wahhaj, Z.; Cieza, L.; Koerner, D. W.; et al., 2010, The Spitzer c2d Survey
of Weak-line T Tauri Stars. III. The Transition from Primordial Disks to
Debris Disks		 2010ApJ...724..835W
3 Rodgers, B.; Garcia, J., 2006, SMARTS Monitoring for Southern UXOR Stars 2006noao.prop..348R
4 Rodgers, B.; Garcia, J., 2006, SMARTS Monitoring for Southern UXOR Stars 2006noao.prop..348R
5 G.Pojmanski, Acta Astronomica 52, 397, 2002. 2002AcA....52..397P
6 F.M.Bateson, A.F.Jones, Charts for Southern Variables, ser.II, 1960. --
7 C.Hoffmeister, VSS 3, N3, 1958. --
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Supporting Documents
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Revision History
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6 Otero, Sebastian Alberto 2021-04-22 05:20 UTC Gaia EDR3 position. Type from 2010ApJ...724..835W.
5 Otero, Sebastian Alberto 2018-06-11 00:45 UTC Primary record creation.
4 Otero, Sebastian Alberto 2012-12-15 01:44 UTC Period and minimum magnitude from ASAS-3 data. Spectral type from Skiff (2012). HIPPARCOS position.
3 Admin, VSX 2010-06-15 02:00 UTC Update from [J.R. Percy et al., 2010, eJAAVSO 124].
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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