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Name
   VSX J180514.3-285131  
AAVSO UID
--  
Constellation
Sagittarius Sequence
J2000.0
18 05 14.35 -28 51 31.7  (271.30979 -28.85881) Search nearby
B1950.0 18 02 03.80 -28 51 47.7
Galactic coord. 2.231 -3.671
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
2MASS J18051436-2851317 OGLE BUL-SC33 96559 OGLE BUL-SC33 V2339
OGLE BUL-SC33 V2343 OGLE BUL-SC33 V2367 UCAC3 123-394613
V1010 Sgr    
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Variability type
EB:
Spectral type --
Mag. range
14.23 - 14.29 Ic
Discoverer --
Epoch
28 Sep 2000 (HJD 2451816) Ephemeris
Outburst --
Period 800: d
Rise/eclipse dur. --
Remarks
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1 Otero, Sebastian Alberto ID was wrong. Further investigation led to the finding that these OGLE detections are just artifacts caused by light contaminaton by the bright mira V1010 Sgr. They create reversed light curves at 1.5' from the variable star.
2 Otero, Sebastian Alberto J-K 1.21: Magnitudes given are for OGLE BUL-SC33 96559 which is a possible artifact caused by light contamination from the true and brighter variable. Identification uncertain. All OGLE artifacts around this position (between AR 18h 05m 12s and 18h 05m 15s and DEC -28º 51' 30" and -28º 52' 10") show the same light curve contamination. Those with the largest amplitudes are: OGLE BUL-SC33 96559 at 18 05 14.40 -28 51 31.6 OGLE BUL-SC33 96744 at 18 05 13.92 -28 51 33.7 OGLE BUL-SC33 96712 at 18 05 14.28 -28 51 58.2 OGLE BUL-SC33 97111 at 18 05 14.14 -28 51 33.2 The closest bright 2MASS star was chosen for the identification. No bright mira candidate nearby to account for the mira classification in Groenewegen et al. (2005). Maxima look too long for a mira. An SR with Long Secondary Period (LSP) variability or a very long period RV Tauri star can't be ruled out.
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References
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1 Groenewegen M.A.T., A+A 443, 143, 2005. 2005A&A...443..143G
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Images
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Supporting Documents
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1 Phase plot Otero, Sebastian Alberto 2011-05-06 00:50 UTC Light curve showing OGLE I-data.
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Revision History
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3 Otero, Sebastian Alberto 2011-05-06 02:15 UTC Actually light contamination from V1010 Sgr. No real variable at this position.
2 Otero, Sebastian Alberto 2011-05-06 00:53 UTC Primary name changed to VSX designation to avoid confusison with other OGLE entries that show the same light contamination.
1 Otero, Sebastian Alberto 2011-05-06 00:51 UTC Initial submission.

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