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  T Her  
000-BCB-468 (51447 observations)  
Hercules Sequence
18 09 06.21 +31 01 16.2  (272.27587 +31.02117) Search nearby
B1950.0 18 07 12.64 +31 00 40.2
Proper motion
RA: -1.856 +/- 0.038 mas/yDec: 6.964 +/- 0.051 mas/ySource: Gaia DR1
Galactic coord. 57.600 +22.029
Other names

(Internal only)
AAVSO 1805+31 BD+30 3137 HD 166382
HIP 88923 SAO 66680  
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Variability type
Spectral type M2.5e-M8e
Mag. range
6.8 - 13.7 V
Discoverer --
02 Dec 1982 (HJD 2445306) Ephemeris
Outburst --
Period 164.98 d
Rise/eclipse dur. 47%  (77.540600000000 d)
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1 GCVS Team VB A (B 10m, 67", 321deg).
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1 T. Karlsson, Maxima of Mira stars --
2 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 = 4.21H = 3.31K = 2.99J - K = 1.22
AllWISE W1 = 3.27W2 = 2.56W3 = 2.13W4 = 1.70W1 - W2 = 0.72W3 - W4 = 0.43
APASS-DR9 B = 10.45i' = 8.73
GALEX-DR5 NUV = 19.75
Please review Digitized Sky Survey Acknowledgment and Copyright.
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Supporting Documents
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 Legacy LPV Program
 LPV Program
Revision History
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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.