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Details for Revision 2
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Name
  MACHO 120.21656.31  
AAVSO UID
000-BKJ-107 (No observations)  
Constellation
Sagittarius Sequence
J2000.0
18 06 57.51 -29 41 31.7  (271.73962 -29.69214) Search nearby
B1950.0 18 03 45.69 -29 41 55.1
Galactic coord. 1.682 -4.402
Other names

(Internal only)
2MASS J18065751-2941315 AKARI-IRC-V1 J1806573-294131 OGLE BLG197.8.154346
OGLE-BLG-LPV-211541 VSX J180657.5-294131  
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Variability type
M
Spectral type --
Mag. range
12.260 (2.007) Ic
Discoverer Klaus Bernhard, Stefan Hümmerich
Epoch
08 Apr 1997 (HJD 2450547.0) Ephemeris
Outburst --
Period 301.1 d
Rise/eclipse dur. --
Remarks
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1 Hümmerich, Stefan Positional data was taken from 2MASS. J-K = 1.698 (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 E.V. Kazarovets, N.N. Samus, O.V. Durlevich et al., 2019, The 82nd
Name-List of Variable Stars. Part II – RA 18h to 20h and Novae		 2019PZ.....39....3K
3 I. Soszynski, A. Udalski, M.K. Szymanski et al., 2013, Acta Astronomica 63,
21 (online V data)		 2013arXiv1304.2787S
4 I. Soszynski, A. Udalski, M.K. Szymanski et al., 2013, Acta Astronomica 63,
21 (online I data)		 2013arXiv1304.2787S
5 I. Soszynski, A. Udalski, M.K. Szymanski et al., 2013, Acta Astronomica 63,
21 (Chart)		 2013arXiv1304.2787S
6 I. Soszynski, A. Udalski, M.K. Szymanski et al., 2013, Acta Astronomica 63,
21		 2013arXiv1304.2787S
7 I. Soszynski, A. Udalski, M.K. Szymanski et al., 2013, Acta Astronomica 63,
21		 2013arXiv1304.2787S
8 Soszynski, I.; et al., 2013, The Optical Gravitational Lensing Experiment.
The OGLE-III Catalog of Variable Stars. XV. Long-Period Variables in the
Galactic Bulge		 2013AcA....63...21S
9 S. Hümmerich, K. Bernhard, 2012, OEJV 149 2012OEJV..149....1H
10 R.A. Allsman, T.S. Axelrod, 2001, arXiv:astro-ph/0108444 (MACHO online
data)		 2001astro.ph..8444A
External Links
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Supporting Documents
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2 MACHO 120.21656.31 - lightcurve Hümmerich, Stefan 2012-02-10 02:04 UTC MACHO 120.21656.31 - lightcurve
1 MACHO 120.21656.31 - folded lightcurve Hümmerich, Stefan 2012-02-10 02:04 UTC MACHO 120.21656.31 - folded lightcurve
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Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
4 Otero, Sebastian Alberto 2023-02-27 20:53 UTC Period from 2022ApJS..260...46I. Gaia DR3 position.
3 Admin, VSX 2019-11-01 03:00 UTC Update from [2019PZ.....39....3K].
2 Admin, VSX 2013-04-18 00:07 UTC Update from [2013arXiv1304.2787S].
1 Hümmerich, Stefan 2012-02-10 23:46 UTC Initial submission.

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