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Latest Details
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Name
  MACHO 311.38230.1146  
AAVSO UID
000-BKQ-402 (No observations)  
Constellation
Sagittarius Sequence
J2000.0
18 19 46.27 -23 52 05.7  (274.94278 -23.86825) Search nearby
B1950.0 18 16 43.06 -23 53 25.4
Galactic coord. 8.182 -4.152
Other names

(Internal only)
2MASS J18194627-2352057 AKARI-IRC-V1 J1819462-235204 ASASSN-V J181946.27-235205.7
OGLE-BLG-LPV-261928 OGLE-IV BLG528.28.96207 VSX J181946.2-235205
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Variability type
M
Spectral type --
Mag. range
13.6 - 17.9 Rc
Discoverer Klaus Bernhard, Stefan Hümmerich
Epoch
25 May 1997 (HJD 2450594.0) Ephemeris
Outburst --
Period 548.9 d
Rise/eclipse dur. --
Remarks
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1 Hümmerich, Stefan Listed as a SiO maser in 2007PASJ...59..559D. Positional data was taken from 2MASS. J-K = 2.532 (2MASS).
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References
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1 Iwanek, P.; et al., 2022, The OGLE Collection of Variable Stars: Nearly
66,000 Mira Stars in the Milky Way		 2022ApJS..260...46I
2 R.A. Allsman, T.S. Axelrod, 2001, arXiv:astro-ph/0108444 (MACHO online
data)		 2001astro.ph..8444A
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 = 8.33H = 7.00K = 5.80J - K = 2.53
AllWISE W1 = 3.92W2 = 3.00W3 = 1.42W4 = 0.06W1 - W2 = 0.92W3 - W4 = 1.37
Images
Please review Digitized Sky Survey Acknowledgment and Copyright.
Size 5' x 5' (297 x 298 pixels)
Center 18 19 46.27 -23 52 05.7 (J2000)
Source STScI
Survey

Red, all sky, 1.0 arcsec/pixel
  Negative
Supporting Documents
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1 MACHO 311.38230.1146 - lightcurve and phase plot Hümmerich, Stefan 2012-08-30 19:06 UTC MACHO 311.38230.1146 - lightcurve and phase plot
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Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
2 Otero, Sebastian Alberto 2023-02-21 21:48 UTC Period from 2022ApJS..260...46I. Gaia DR3 position.
1 Hümmerich, Stefan 2012-08-30 19:15 UTC Initial submission.

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