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Name
  S Tri  
AAVSO UID
000-BBD-926 (3360 observations)  
Constellation
Triangulum Sequence
J2000.0
02 27 19.52 +32 44 22.9  (36.83133 +32.73969) Search nearby
B1950.0 02 24 20.35 +32 30 57.0
Proper motion
RA: 6.99 +/- 2.43 mas/yDec: -3.66 +/- 1.83 mas/ySource: F. Van Leeuwen, 2007
Galactic coord. 145.267 -25.940
Other names

(Internal only)
AAVSO 0221+32A AN 8.1909 HIP 11423
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Variability type
SRA
Spectral type M2e
Mag. range
9.2 - 12.2 V
Discoverer L. Ceraski (7 April 1909)
Epoch
17 Mar 1996 (HJD 2450160.0) Ephemeris
Outburst --
Period 245.4 d
Rise/eclipse dur. 48%
Remarks
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1 Karlsson, Thomas Cycle-to-cycle amplitude <2.5 mag.
2 GCVS Team P var. Max = 2418541 + 248.9d*E (JD2418000 - 31000); since JD2431000 - see Table.
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References
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1 V.P.Zessewitsch, M.S.Kazanasmas, Atlas of Finding Charts for Variable
Stars, M., 1971.
1971afcv.book.....T
2 Ceraski, W., 1909, Deux variables nouvelles 1909AN....180..391C
3 General Catalogue of Variable Stars, 4th Edition, Volumes I-III, P.N.
Kholopov et al.
--
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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 = 5.37H = 4.40K = 4.01J - K = 1.35
AllWISE W1 = 3.55W2 = 3.03W3 = 2.81W4 = 2.36W1 - W2 = 0.52W3 - W4 = 0.45
APASS-DR9 B = 12.75V = 10.90g' = 11.87r' = 10.14i' = 7.59B - V = 1.85
Images
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Supporting Documents
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1 Phase plot Karlsson, Thomas 2017-09-04 15:23 UTC Phase plot from AAVSO visual and V 1995-2017.
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Revision History
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4 Karlsson, Thomas 2017-09-04 15:23 UTC Type, range and elements from AAVSO data.
3 Billiaert, Bruno 2016-02-20 09:51 UTC Discoverer from 1909AN....180..391C.
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.