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Name
  ST Sge  
AAVSO UID
000-BCK-848 (3383 observations)  
Constellation
Sagitta Sequence
J2000.0
20 11 42.17 +20 37 17.0  (302.92571 +20.62139) Search nearby
B1950.0 20 09 29.56 +20 28 16.4
Proper motion
RA: -7.9 +/- 2.9 mas/yDec: -2.0 +/- 2.5 mas/ySource: UCAC4
Galactic coord. 60.546 -7.192
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
2MASS J20114216+2037170 AAVSO 2007+20A AN 170.1905
ASAS J201142+2037.3 ASASSN-V J201142.15+203716.6 GSC 01626-00118
IRAS 20095+2028 TYC 1626-118-1  
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Variability type
M
Spectral type M3-M4e
Mag. range
9.8 - 15.5 V
Discoverer --
Epoch
07 Aug 2008 (HJD 2454686) Ephemeris
Outburst --
Period 190 d
Rise/eclipse dur. 42%  (80 d)
Remarks
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1 Otero, Sebastian Alberto VSP Note: 14.2 mag. star 8" to the ESE and 16.4 mag. star 11" to the SSE.
2 Otero, Sebastian Alberto ASAS-3 magnitudes contaminated by UCAC4 554-105891 (V= 14.2:; sep. 8") and UCAC4 554-105890 (V= 16.4:; sep. 11"). Range has been corrected.
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References
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1 G.Pojmanski, Acta Astronomica 52, 397, 2002. 2002AcA....52..397P
2 M.U.G.Wolf, AN 170, 361, 1906. 1906AN....170..361W
3 T. Karlsson, Maxima of Mira stars --
4 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 = 6.28H = 5.37K = 5.04J - K = 1.24
AllWISE W1 = 4.88W2 = 4.33W3 = 4.20W4 = 3.86W1 - W2 = 0.56W3 - W4 = 0.34
APASS-DR9 B = 12.54V = 10.69g' = 12.02r' = 10.45B - V = 1.85
Images
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Supporting Documents
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Campaigns/Programs
 LPV Double Trouble Campaign
Revision History
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3 Otero, Sebastian Alberto 2013-10-15 03:20 UTC Primary record creation. Period, epoch and range from ASAS-3 data. UCAC4 position.
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.