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Latest Details
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Name
  V1640 Sgr  
AAVSO UID
000-BFG-064 (No observations)  
Constellation
Sagittarius Sequence
J2000.0
18 43 35.47 -34 52 13.5  (280.89779 -34.87042) Search nearby
B1950.0 18 40 15.91 -34 55 15.8
Proper motion
RA: 0.7 +/- 1.5 mas/yDec: -0.3 +/- 1.5 mas/ySource: UCAC4
Galactic coord. 0.469 -13.633
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
ASAS J184335-3452.2    
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Variability type
RRAB
Spectral type F6
Mag. range
12.3 - 13.6 p
Discoverer --
Epoch
03 Sep 1937 (HJD 2428780.3361) Ephemeris
Outburst --
Period 0.3673598 d  (8.81664 h)
Rise/eclipse dur. 32%  (2.821 h)
Remarks
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1 GCVS Team (k -b)2 = 0.24. P var?
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References
Click reference title/citation to view in new window. Roll over index number to view submission details.
1 G.Pojmanski, Acta Astronomica 52, 397, 2002. 2002AcA....52..397P
2 J.Ponsen, Leid Ann 20, N16, 383, 1955. --
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 = 11.95H = 11.72K = 11.63J - K = 0.32
AllWISE W1 = 11.35W2 = 11.35W3 = 11.66W1 - W2 = 0.00
APASS-DR9 B = 13.64V = 13.08g' = 13.30r' = 12.92i' = 12.74B - V = 0.56
Images
Please review Digitized Sky Survey Acknowledgment and Copyright.
Size 5' x 5' (297 x 298 pixels)
Center 18 43 35.47 -34 52 13.5 (J2000)
Source STScI
Survey

Red, all sky, 1.0 arcsec/pixel
  Negative
Supporting Documents
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Stellar Association Membership
 ASCC 98 Open Cluster 2012A&A...548A..97Z
Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
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.

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