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Details for Revision 1
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Name
  V4390 Sgr  
AAVSO UID
--  
Constellation
Sagittarius Sequence
J2000.0
18 21 48.90 -16 19 29.0  (275.45375 -16.32472) Search nearby
B1950.0 18 18 55.67 -16 20 58.0
Galactic coord. 15.077 -1.036
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
AAVSO 1816-16 ASAS J182149-1619.5 BD-16 4836
HD 168701 HD 168702 HIP 90001
NSV 10682 PPM 234430 SAO 161385
TYC 6265-1796-1    
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Variability type
EB
Spectral type --
Mag. range
7.75 - 7.87 Hp
Discoverer --
Epoch
--
Outburst --
Period --
Rise/eclipse dur. --
Remarks
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1 Otero, Sebastian Alberto Min II= 7.70 V.
2 GCVS Team SB2 and speckle binary.
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References
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1 J.S. Nichols et al., 2010, ApJS 188, 473 (online data) 2010ApJS..188..473N
2 Pojmanski, G., 2002, The All Sky Automated Survey 2002AcA....52..397P
3 European Space Agency, 1997, The Hipparcos and Tycho Catalogues, ESA
SP-1200
1997yCat.1239....0E
4 Ginestet, N.; et al., 1997, Spectral classifications in the near infrared
of stars with composite spectra. II. Study of a sample of 180 stars
1997A&AS..123..135G
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Supporting Documents
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Stellar Association Membership
 NGC 6618 Open Cluster 2012A&A...548A..97Z
Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
4 Otero, Sebastian Alberto 2014-02-18 08:04 UTC Period, epoch and range from ASAS-3 data. Spectral type from 1997A&AS..123..135G.
3 Admin, VSX 2010-01-05 04:43 UTC Position updated from the GCVS version of November 2009.
2 Admin, VSX 2007-03-23 19:53 UTC Added period, epoch and spectral type from [1997yCat.1239....0E].
1 Admin, VSX 2005-12-18 01:33 UTC Initial database population.