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Name
  SY Sco  
AAVSO UID
000-BBZ-603 (753 observations)  
Constellation
Scorpius Sequence
J2000.0
17 53 48.80 -34 24 03.0  (268.45333 -34.40083) Search nearby
B1950.0 17 50 29.36 -34 23 28.7
Galactic coord. 356.197 -4.297
Other names

(Internal only)
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AAVSO 1747-34A AN 18.1908 ASAS J175349-3424.0
HD 320846 HV 3060  
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Variability type
M
Spectral type M6e
Mag. range
10.5 - <15.0 p
Discoverer --
Epoch
13 Jul 1939 (HJD 2429458) Ephemeris
Outburst --
Period 234.9 d
Rise/eclipse dur. --
Remarks
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1 Otero, Sebastian Alberto Minimum in ASAS-3 contaminated by HD 320845 (V= 10.47, F5).
2 GCVS Team In the region of the open cluster NGC 6475 = M7.
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References
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1 J. Alfonso-Garzon, A. Domingo, J.M. Mas-Hesse, A. Gimenez, 2012,
arXiv:1210.0821 [astro-ph.IM] (online info)
2012arXiv1210.0821A
2 G.Pojmanski, Acta Astronomica 52, 397, 2002. 2002AcA....52..397P
3 L.Plaut, Leid Ann 21, N3, 1958. --
4 Dunér, N. C.; Hartwig, E.; Muller, G., 1909, Benennung von neu entdeckten
veränderlichen Sternen
1909AN....182..321D
5 General Catalogue of Variable Stars, 4th Edition, Volumes I-III, P.N.
Kholopov et al.
--
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Supporting Documents
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Stellar Association Membership
 NGC 6475 Open Cluster 2012A&A...548A..97Z
Revision History
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4 Fernig, Leo 2022-09-21 20:30 UTC Discoverer updated from 1909AN....182..321D p329
3 Otero, Sebastian Alberto 2011-02-21 06:41 UTC Primary record creation. Maximum magnitude from ASAS-3 data. Minimum from AAVSO visual data.
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.