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Latest Details
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Name
  V1721 Sgr  
AAVSO UID
000-BFG-139 (219 observations)  
Constellation
Sagittarius Sequence
J2000.0
17 58 43.20 -33 19 33.5  (269.68000 -33.32597) Search nearby
B1950.0 17 55 25.49 -33 19 19.9
Proper motion
RA: 13.646 +/- 0.117 mas/yDec: -16.961 +/- 0.071 mas/ySource: Gaia DR1
Galactic coord. 357.641 -4.644
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
ASAS J175843-3319.5 ASASSN-V J175843.13-331933.0 CD-33 12677
CPD-33 04736 CPD-33 4734 CoD-33 12682
GSC 07382-01422 HD 163649 HIP 88022
PPM 297077 SAO 209541 TYC 7382-1422-1
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Variability type
EA/DM
Spectral type F3V
Mag. range
9.22 - 9.57 V
Discoverer --
Epoch
24 Feb 1991 (HJD 2448311.917) Ephemeris
Outburst --
Period 1.788569 d
Rise/eclipse dur. 8%  (3.43 h)
Remarks
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1 Otero, Sebastian Alberto Min II= 9.27.
2 Admin, VSX Close companion to GCVS star [IBVS 5549]
3 GCVS Team d = 0.03P:.
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References
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1 D.M. Nataf, K.Z. Stanek, G.A. Bakos, 2010, arXiv:1009.2502v1 [astro-ph.GA] 2010arXiv1009.2502N
2 S.W. Dvorak, 2004, IBVS 5549 2004IBVS.5549....1D
3 G.Pojmanski, Acta Astronomica 52, 397, 2002. 2002AcA....52..397P
4 F.M.Bateson, M.Morel, B.Sumner, R.Winnett, Charts for Southern Variables,
ser. N11, 1979.
--
5 L.Plaut, Leid Ann 21, N3, 1958. --
6 Catalogue of Stellar Spectral Classifications (Skiff, 2005) 1949AnHar.112....1C
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 = 8.27H = 8.06K = 8.03J - K = 0.24
AllWISE W1 = 7.91W2 = 7.94W3 = 7.97W4 = 7.88W1 - W2 = -0.03W3 - W4 = 0.09
Images
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Supporting Documents
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1 V1721 Sgr phase plot Otero, Sebastian Alberto 2011-02-22 04:35 UTC Phase plot combining ASAS-3 and Hipparcos data.
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Revision History
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4 Otero, Sebastian Alberto 2011-02-22 04:21 UTC Primary record creation. Period, epoch, eclipse duration and range from ASAS-3 and Hipparcos data. Hipparcos position. New identifcation given.
3 Admin, VSX 2010-01-05 04:43 UTC Position updated from the GCVS version of November 2009.
2 Admin, VSX 2009-04-04 03:38 UTC Update from [2004IBVS.5549....1D].
1 Admin, VSX 2005-12-18 01:33 UTC Initial upload.