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Latest Details
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Name
  ASAS J180908-2128.5  
AAVSO UID
000-BHQ-081 (1723 observations)  
Constellation
Sagittarius Sequence
J2000.0
18 09 07.93 -21 28 24.8  (272.28304 -21.47356) Search nearby
B1950.0 18 06 07.92 -21 28 58.2
Proper motion
RA: 2.856 +/- 2.527 mas/yDec: 0.352 +/- 2.330 mas/ySource: Gaia DR1
Galactic coord. 9.120 -0.854
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
2MASS J18090792-2128247 ASAS 180908-2128.5 CPD-21 6659
GSC 06276-01849 HD 313926 TYC 6276-1849-1
VSX J180907.9-212824    
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Variability type
EA
Spectral type B3-B7
Mag. range
10.88 - 11.22 V
Discoverer --
Epoch
06 Jun 2006 (HJD 2453893.071) Ephemeris
Outburst --
Period 2.27038 d
Rise/eclipse dur. --
Remarks
Some references may be clicked to view in new window. Roll over index number to view submission details.
1 2014MNRAS.441..343S Eccentric system (2014MNRAS.441..343S).
2 Otero, Sebastian Alberto Eccentric orbit, Min II = 11.09V at phase 0.38. Apsidal motion. Period for Min I given. Min II period is 2.27032 d.
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References
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1 Shivvers, I.; Bloom, J. S.; Richards, J. W., 2014, The highly eccentric
detached eclipsing binaries in ACVS and MACC
2014MNRAS.441..343S
2 S. Rucinski et al., Discovery of the strongly eccentric, short-period
binary nature of the B-type system HD 313926 by the MOST satellite
2007MNRAS.380L..63R
3 G.Pojmanski, Acta Astronomica 52, 397, 2002. 2002AcA....52..397P
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 = 10.36H = 10.33K = 10.29J - K = 0.06
APASS-DR9 B = 11.11V = 10.89g' = 10.94r' = 10.91i' = 10.96B - V = 0.21
Images
Please review Digitized Sky Survey Acknowledgment and Copyright.
Size 5' x 5' (297 x 298 pixels)
Center 18 09 07.93 -21 28 24.8 (J2000)
Source STScI
Survey

Red, all sky, 1.0 arcsec/pixel
  Negative
Supporting Documents
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Stellar Association Membership
 vdBergh 113 Open Cluster 2012A&A...548A..97Z
Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
2 Otero, Sebastian Alberto 2011-11-29 04:31 UTC Primary record creation. Range from ASAS-3 data. Elements from 2007MNRAS.380L..63R. Tycho-2 position.
1 Admin, VSX 2005-12-18 01:33 UTC Preserved original object data.