VSX : Detail for MACHO 120.21269.13

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Name

MACHO 120.21269.13

AAVSO UID

000-BKT-216 (No observations)

Constellation

Sagittarius

Sequence

J2000.0

18 05 58.23 -29 31 27.9 (271.49262 -29.52442)

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B1950.0

18 02 46.69 -29 31 50.0

Proper motion

RA: -5.7 +/- 5.2 mas/y

Dec: 59.2 +/- 5.2 mas/y

Source: UCAC4

Galactic coord.

1.725 -4.133

Other names

(Internal only)

2MASS J18055822-2931279	AKARI-IRC-V1 J1805580-293130	ASAS J180558-2931.5
ASASSN-V J180558.12-293128.3

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Variability type

Spectral type

Mag. range

10.8 - 14.8 Rc

Discoverer

Klaus Bernhard, Stefan Hümmerich

Epoch

07 Jun 1999 (HJD 2451337)

Ephemeris

Outburst

Period

310 d

Rise/eclipse dur.

Remarks

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Hümmerich, Stefan

Positional data was taken from 2MASS. J-K = 1.457 (2MASS). Range (V): 13.0-<13.7 (ASAS-3).

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References

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R.A. Allsman, T.S. Axelrod, 2001, arXiv:astro-ph/0108444 (MACHO online
data)

2001astro.ph..8444A

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 = 8.39	H = 7.52	K = 6.94	J - K = 1.46
AllWISE	W1 = 6.32	W2 = 5.81	W3 = 5.15	W4 = 4.54	W1 - W2 = 0.51	W3 - W4 = 0.61

Images

Please review Digitized Sky Survey Acknowledgment and Copyright.

Size	5' x 5' (297 x 298 pixels)
Center	18 05 58.23 -29 31 27.9 (J2000)
Source	STScI
Survey	Red, all sky, 1.0 arcsec/pixel
	Negative

Supporting Documents

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2	MACHO 120.21269.13 - lightcurve and phase plot	Hümmerich, Stefan	2012-11-08 16:11 UTC	MACHO 120.21269.13 - lightcurve and phase plot
1	MACHO 120.21269.13 / ASAS J180558-2931.5 - phase plot	Hümmerich, Stefan	2012-11-08 16:11 UTC	Phase plot based on MACHO Rc data (red) and ASAS V data (black). ASAS V has been shifted to match MACHO Rc.