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Name
  V4018 Sgr  
AAVSO UID
000-BCX-097 (1161 observations)  
Constellation
Sagittarius Sequence
J2000.0
18 25 26.80 -28 35 57.0  (276.36167 -28.59917) Search nearby
B1950.0 18 22 16.82 -28 37 41.2
Galactic coord. 4.550 -7.460
Other names

(Internal only)
2MASS J18252684-2835572 AAVSO 1819-28 AS 304
ASAS J182527-2836.0 CD-28 14567 GSC 06869-00806
Hen 3-1691 JL-2 PN KFL 20
SOPS IIa- 37 SS73 162 TYC 6869-806-1
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Variability type
L:
Spectral type --
Mag. range
9.5 - <13.6 p
Discoverer --
Epoch
--
Outburst --
Period --
Rise/eclipse dur. --
Remarks
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1 B. Skiff, M. Morel, 2014, Private communication Balmer emission.
2 2013arXiv1312.6063G Pulsation period 93d.
3 Otero, Sebastian Alberto Ellipsoidal and reflection variability superposed with an amplitude of 0.5 mag. at quiescence (mean V= 12.9 - 13.4). B-V= 1.09 (2008BaltA..17..293H). Maximum given is from a single photographic plate in 1976JAVSO...4...64L. The rest of the data is consistent with an outburst maximum around V= 10.5.
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References
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1 B. Skiff, M. Morel, 2014, Private communication --
2 M. Gromadzki, J. Mikolajewska, I. Soszynski, 2013, arXiv:1312.6063
[astro-ph.SR]
2013arXiv1312.6063G
3 Henden, A. A., Munari, U., 2008, Multi-Epoch UBVRcIc Photometric Catalog of
Symbiotic Stars
2008BaltA..17..293H
4 The All Sky Automated Survey 2002AcA....52..397P
5 A catalogue of symbiotic stars, Belczynski K., et al. (2000) 2000A&AS..146..407B
6 J.Lukas, JAAVSO 4, N2, 64, 1975- 1976 (online eJAAVSO) 1976JAVSO...4...64L
7 J.Lukas, JAAVSO 4, N2, 64, 1975- 1976. 1976JAVSO...4...64L
8 S.W. McCuskey, S. W., 1964, AJ 69, 104 1964AJ.....69..104M
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Supporting Documents
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1 Phase plot Otero, Sebastian Alberto 2012-09-20 21:50 UTC Phase plot combining ASAS-3 data and observations from Henden and Munari (2008).
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Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
5 Admin, VSX 2013-12-27 05:49 UTC Update from [2013arXiv1312.6063G].
4 Otero, Sebastian Alberto 2012-09-20 21:50 UTC Type, period, epoch and minimum magnitude from ASAS-3 data.
3 Kiyota, Seiichiro 2011-09-19 08:42 UTC Variability type changed and spectral type added.
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.