VSX : Detail for 2MASS J18111163-2630028

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Latest Details

Name

2MASS J18111163-2630028

AAVSO UID

000-BMV-827 (No observations)

Constellation

Sagittarius

Sequence

J2000.0

18 11 11.63 -26 30 02.8 (272.79846 -26.50078)

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B1950.0

18 08 04.77 -26 30 45.2

Proper motion

RA: -43.8 +/- 7.0 mas/y

Dec: 6.3 +/- 5.2 mas/y

Source: UCAC4

Galactic coord.

4.938 -3.688

Other names

(Internal only)

Please note that aliases shown in grey link to obsolete records.
ASASSN-V J181111.69-263002.4	IRAS R18080-2630	OGLE BUL-SC17 V0708
OGLE BUL-SC17 V0709	OGLE BUL-SC17 V0710	OGLE BUL-SC17 V0713
OGLE BUL-SC17 V0719	OGLE BUL-SC17 V0725	OGLE BUL-SC17 V0726
OGLE BUL-SC17 V0728	OGLE BUL-SC17 V0732	OGLE BUL-SC17 V0751
VSX J181111.6-263002

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Variability type

Spectral type

Mag. range

9.2 (>1.0:) Ic

Discoverer

Epoch

20 Jul 1997 (HJD 2450650):

Ephemeris

Outburst

Period

300: d

Rise/eclipse dur.

Remarks

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Otero, Sebastian Alberto

J-K 2.27. Maser. Elements from analysis of OGLEII DIA BUL-SC17 394369, contaminated by light from the actual mira, which is too bright for OGLE. Magnitude from DENIS. Variable period or problems with the contaminated data. Time interval between the 1997 and 1998 maxima is 323 d. Possible strong mean magnitude changes.

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References

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1	Groenewegen M.A.T., A+A 443, 143, 2005.	2005A&A...443..143G
2	The Optical Gravitational Lensing Experiment (online data)	2004MNRAS.348.1439S

External Links

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Location

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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 = 4.71	H = 3.04	K = 2.44	J - K = 2.27
AllWISE	W3 = 0.73	W4 = -0.04	W3 - W4 = 0.78

Images

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Supporting Documents

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2	Phase plot	Otero, Sebastian Alberto	2011-06-15 20:42 UTC	Phase plot with OGLE I-data for a nearby star contaminated by the variable.
1	Light curve	Otero, Sebastian Alberto	2011-06-15 20:42 UTC	Light curve showing a possible mean magnitude change affecting the data for the contaminated star.