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Latest Details
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Name
  NSV 542  
AAVSO UID
--  
Constellation
Cassiopeia Sequence
J2000.0
01 33 14.02 +60 41 11.0  (23.30840 +60.68640) Search nearby
B1950.0 01 29 54.25 +60 25 47.7
Proper motion
RA: -1.49 +/- 0.90 mas/yDec: 0.07 +/- 0.81 mas/ySource: F. Van Leeuwen, 2007
Galactic coord. 128.028 -1.771
Other names

(Internal only)
ADS 1209 A BD+59 271 GSC 04031-00388
HD 9311 HIP 7232 IOMC 4031000097
LS I+60 162 PPM 013060 SAO 11822
cl Hoag 1 (NGC 581) cl Purg A (NGC 581)  
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Variability type
VAR
Spectral type B5Ib
Mag. range
7.23 (0.016) V
Discoverer --
Epoch
--
Outburst --
Period 58.65103 d
Rise/eclipse dur. --
Remarks
Some references may be clicked to view in new window. Roll over index number to view submission details.
1 GCVS Team Hp=7.32-7.40 [The Hipparcos and Tycho Catalogues, SP-1200, ESA, 1997.]. B: 10.22, 14", 143deg; C: 9.6, 28", 145deg; D: 11.2, 56", 117deg; E: 10.0, 83", 138deg.
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References
Click reference title/citation to view in new window. Roll over index number to view submission details.
1 J. Alfonso-Garzon, A. Domingo, J.M. Mas-Hesse, A. Gimenez, 2012,
arXiv:1210.0821 [astro-ph.IM] (online info)
2012arXiv1210.0821A
2 C. Koen, L. Eyer, 2002, MNRAS 331, 45 2002MNRAS.331...45K
3 A.Purgathofer, Wien Ann 26, 37, 1964. --
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 = 6.49H = 6.46K = 6.38J - K = 0.12
AllWISE W1 = 6.37W2 = 6.26W3 = 6.32W4 = 6.19W1 - W2 = 0.11W3 - W4 = 0.13
Images
Please review Digitized Sky Survey Acknowledgment and Copyright.
Size 5' x 5' (297 x 298 pixels)
Center 01 33 14.02 +60 41 11.0 (J2000)
Source STScI
Survey

Red, all sky, 1.0 arcsec/pixel
  Negative
Supporting Documents
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Stellar Association Membership
 NGC 581 Open Cluster 2012A&A...548A..97Z
Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
3 Admin, VSX 2013-05-03 23:10 UTC Update from [2002MNRAS.331...45K].
2 Admin, VSX 2010-01-18 23:18 UTC Position updated to NSV version of June 2009.
1 Admin, VSX 2005-12-18 01:33 UTC Initial upload.