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Name
  RW Sgr  
AAVSO UID
000-BCF-870 (8732 observations)  
Constellation
Sagittarius Sequence
J2000.0
19 13 54.60 -18 51 42.1  (288.47750 -18.86169) Search nearby
B1950.0 19 10 59.16 -18 56 53.1
Proper motion
RA: -9.72 +/- 1.87 mas/yDec: -11.22 +/- 1.33 mas/ySource: F. Van Leeuwen, 2007
Galactic coord. 18.322 -13.289
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
2MASS J19135459-1851420 AAVSO 1908-19A ASAS J191354-1851.7
ASASSN-V J191354.62-185142.2 BD-19 5347 GSC 06304-00228
Gaia DR3 4084115845238283264 HD 179604 HIP 94489
HV 79 IRC -20546 PPM 235683
SAO 162339 TIC 10559075 TYC 6304-228-1
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Variability type
SRA
Spectral type M4II/IIIe-M6III:e
Mag. range
9 - 11.7 V
Discoverer Williamina Fleming (1896)
Epoch
05 Sep 1973 (HJD 2441931.00) Ephemeris
Outburst --
Period 186.82 d
Rise/eclipse dur. 47%  (88 d)
Remarks
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1 GCVS Team P var. Max = 2413798 + 189.0d*E (JD2413700 - 23000); Max = 2431998 + 190.87d*E (JD2423000 - 33500); since JD2433500 - see Table.
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References
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1 G.Pojmanski, Acta Astronomica 52, 397, 2002. 2002AcA....52..397P
2 Cannon, A. J., 1907, Second catalogue of variable stars 1907AnHar..55....1C
3 General Catalogue of Variable Stars, 4th Edition, Volumes I-III, P.N.
Kholopov et al.		 --
External Links
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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 = 4.06H = 3.14K = 2.79J - K = 1.27
AllWISE W3 = 1.26W4 = 0.49W3 - W4 = 0.77
APASS-DR9 B = 12.97V = 11.24g' = 11.69r' = 10.26B - V = 1.74
Images
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Supporting Documents
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Campaigns/Programs
 LPV Program
Revision History
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5 Riesen, Peter 2026-07-07 11:15 UTC Discoverer corrected.
4 Fernig, Leo 2022-04-22 13:35 UTC Discoverer updated from 1907AnHar..55....1C page 24
3 Fernig, Leo 2022-04-22 13:34 UTC Discoverer updated from 1907AnHar..55....1C page 24
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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