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Latest Details
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| Name |
T Cen |
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| AAVSO UID |
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| Constellation |
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| J2000.0 |
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| B1950.0 |
13 38 53.22 -33 20 43.0 |
| Proper motion |
| RA: -27.819 +/- 0.033 mas/y | Dec: 3.434 +/- 0.031 mas/y | Source: Gaia DR1 |
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| Galactic coord. |
314.802 +28.112 |
Other names
(Internal only)
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Please note that aliases shown in grey link to obsolete records.
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2MASS J13414557-3335505 |
AAVSO 1336-33 |
ASAS J134146-3335.8 |
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CD-32 9549 |
CPD-32 3458 |
HD 119090 |
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HIP 66825 |
HR 5147 |
RAFGL 4909S |
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SAO 204739 |
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| Variability type |
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RVA |
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| Spectral type |
K0:e-M4II:e |
| Mag. range |
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5.56 - 8.44 V |
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| Discoverer |
E. E. Markwick (1894) |
| Epoch |
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| Outburst |
-- |
| Period |
184 d |
| Rise/eclipse dur. |
-- |
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Remarks
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Some references may be clicked to view in new window. Roll over index number to view submission details.
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1 |
Otero, Sebastian Alberto
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P= 184 d for the time span 2019-2025 (AAVSO data). |
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2 |
Otero, Sebastian Alberto
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J-K= 0.92.
The light curve shape is more typical of an RVA variable most of the time. The early spectral type at maximum and short period are consistent with that. Minima interchange happens a lot but that is also common in other RV-type stars like U Mon.
In 1954 Bidelman and Ratcliffe already published: "self-reversal of the hydrogen emission lines has been previously found in two high-velocity [SRD] stars, AG Aur and WY And and also in the peculiar cepheid W Vir. The structure of the H-delta line in W Vir at some phases is quite similar to that found in T Cen at H-alpha. Since the light curve of T Cen shows marked variations in the depth of minimum, and since its mean visual range is quite small, about 2.1 mag., it seems that this variable is in several respects more similar to other types of variable stars than to typical Mira-type stars of longer period" |
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References
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Click reference title/citation to view in new window. Roll over index number to view submission details.
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1 |
G.Pojmanski, Acta Astronomica 52, 397, 2002. |
2002AcA....52..397P |
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2 |
Bidelman, W. P. and Ratcliffe, A. E., 1954, Reversal of the Bright Hα
Line in the Spectrum of T Centauri |
1954PASP...66..255B |
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3 |
Markwick, E. E., 1895, Note on the variable star T Centauri, Cord. GC.
18609 |
1895AN....138..213M |
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4 |
General Catalogue of Variable Stars, 4th Edition, Volumes I-III, P.N.
Kholopov et al. |
-- |
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Catalog Data
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Information from selected catalogs obtained by cross-matching to 2 arc seconds using the CDS X-Match Service. These data may not be complete.
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2MASS
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J = 3.23 | H = 2.55 | K = 2.31 | J - K = 0.92 |
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AllWISE
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W3 = 1.56 | W4 = 1.26 | W3 - W4 = 0.30 |
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