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Name
  Cl* Westerlund 1 W 243  
AAVSO UID
--  
Constellation
Ara Sequence
J2000.0
16 47 07.51 -45 52 29.2  (251.78129 -45.87478) Search nearby
B1950.0 16 43 28.65 -45 47 07.9
Proper motion
RA: -4.9 +/- 4.9 mas/yDec: -7.0 +/- 4.9 mas/ySource: UCAC4
Galactic coord. 339.538 -0.427
Other names

(Internal only)
2MASS J16470749-4552290 ASASSN-V J164707.51-455229.2 Cl* Westerlund 1 BKS G
GDS_J1647075-455229 W243 [B2007] J164707.52-455229.0
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Variability type
SDOR
Spectral type B0.5Ia-A3Ia+
Mag. range
14.4: - 16.1 V
Discoverer --
Epoch
--
Outburst --
Period --
Rise/eclipse dur. --
Remarks
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1 Otero, Sebastian Alberto B-V= 4.1; J-K= 1.78.
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References
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1 Ritchie, B. W.; et al., 2009, Spectroscopic monitoring of the luminous blue
variable Westerlund1-243 from 2002 to 2009		 2009A&A...507.1597R
2 A.Z. Bonanos, 2007, AJ 133, 2696 2007AJ....133.2696B
External Links
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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 = 6.41H = 5.27K = 4.63J - K = 1.77
Images
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Supporting Documents
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Revision History
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2 Otero, Sebastian Alberto 2014-10-17 09:25 UTC Type, spectral type and maximum magnitude from 2009A&A...507.1597R. Minimum magnitude from SPM 4.0. UCAC4 position.
1 Admin, VSX 2012-05-10 02:12 UTC Preserved original object data.

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