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Name
  GDS_J1830235-135539  
AAVSO UID
000-BPL-326 (4 observations)  
Constellation
Scutum Sequence
J2000.0
18 30 23.47 -13 55 42.0  (277.59779 -13.92833) Search nearby
B1950.0 18 27 33.31 -13 57 48.6
Galactic coord. 18.162 -1.750
Other names

(Internal only)
2MASS J18302347-1355421 ASASSN-V J183023.57-135539.9 ATO J277.5984-13.9275
Gaia DR3 4104372315454847232 OGLE BLG575.27.48590 OGLE-BLG-LPV-264465
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Variability type
NC+M
Spectral type --
Mag. range
11.3 - 18.5 o
Discoverer Bochum Galactic Disk Survey (GDS)
Epoch
--
Outburst 2022
Period 315.3 d
Rise/eclipse dur. --
Remarks
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1 Otero, Sebastian Alberto Until the current outburst, a mira variable with a range 11.0 - 14.1 Ic (13.2 - 18.5 ATLAS o). GDS and ATLAS data are for a blend of several stars. Gaia DR3 4104372315454096896 (at 18 30 23.63 -13 55 39.2 (J2000.0), 3.8" to the NE) was identified as the variable star in 2018AJ....156..241H but it is not variable and is rather blue. Another fainter red giant (2MASS J18302354-1355369) is 5" to the NNE.
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References
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1 K. Taguchi; M. Yamamoto; M. Moriyama; et al., 2022, ATel #15623 2022ATel15623....1T
2 Iwanek, P.; et al., 2022, The OGLE Collection of Variable Stars: Nearly
66,000 Mira Stars in the Milky Way
2022ApJS..260...46I
3 Tonry, J. L.; et al., 2018, ATLAS: A High-cadence All-sky Survey System 2018PASP..130f4505T
4 Heinze, A. N.; et al., 2018, A First Catalog of Variable Stars Measured by
the Asteroid Terrestrial-impact Last Alert System (ATLAS)
2018AJ....156..241H
5 M. Hackstein, Ch. Fein, M. Haas et al., 2015, AN 336, 590 2015AN....336..590H
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Images
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Supporting Documents
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Revision History
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2 Otero, Sebastian Alberto 2022-09-26 16:02 UTC Type and period from 2022ApJS..260...46I and 2022ATel15623....1T. Range from ATLAS data. Gaia DR3 position.
1 Admin, VSX 2016-01-03 04:07 UTC Preserved original object data.