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Latest Details
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Name
  SY Aql  
AAVSO UID
000-BCK-600 (6211 observations)  
Constellation
Aquila Sequence
J2000.0
20 07 05.41 +12 57 06.3  (301.77254 +12.95175) Search nearby
B1950.0 20 04 44.65 +12 48 23.8
Proper motion
RA: 19.9 +/- 4.3 mas/yDec: -16.7 +/- 3.5 mas/ySource: UCAC4
Galactic coord. 53.367 -10.308
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
AAVSO 2002+12 AN 48.1906 ASASSN-V J200705.41+125705.7
BD+12 4228 HD 190970 HV 1208
IRC +10450 NSVS J2007055+125705  
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Variability type
M
Spectral type M5e-M7e
Mag. range
8.3 - 15.4 V
Discoverer Williamina Fleming (1906)
Epoch
26 Aug 1975 (HJD 2442651) Ephemeris
Outburst --
Period 355.92 d
Rise/eclipse dur. 37%  (131.690400000000 d)
Remarks
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1 GCVS Team Maser H2O, OH.
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References
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1 P.R. Wozniak, S.J. Williams, W.T. Vestrand, V. Gupta, AJ 128, 2965, 2004 2004AJ....128.2965W
2 Cannon, A. J., 1907, Second catalogue of variable stars 1907AnHar..55....1C
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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Location    Go   
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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 = 4.46H = 3.57K = 2.74J - K = 1.72
AllWISE W3 = 0.15W4 = -0.77W3 - W4 = 0.93
APASS-DR9 B = 12.59V = 10.61g' = 11.27r' = 9.50i' = 6.34B - V = 1.98
Images
Please review Digitized Sky Survey Acknowledgment and Copyright.
Size 5' x 5' (297 x 298 pixels)
Center 20 07 05.41 +12 57 06.3 (J2000)
Source STScI
Survey

Red, all sky, 1.0 arcsec/pixel
  Negative
Supporting Documents
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Campaigns/Programs
 LPV Program
Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
3 Fernig, Leo 2022-04-22 13:35 UTC Discoverer updated from 1907AnHar..55....1C page 28
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.