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  U Lib  
000-BBW-464 (3817 observations)  
Libra Sequence
15 42 03.15 -21 10 50.7  (235.51313 -21.18075) Search nearby
B1950.0 15 39 08.29 -21 01 17.2
Proper motion
RA: -7.7 +/- 1.5 mas/yDec: -16.1 +/- 1.1 mas/ySource: UCAC4
Galactic coord. 347.820 +26.461
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
2MASS J15420315-2110507 AAVSO 1536-20A ASAS J154201-2110.7
BD-20 4305 IRAS 15391-2101 SOPS IVd- 1
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Variability type
Spectral type M3e-M8.0e
Mag. range
8.9 - 15.2 V
Discoverer --
23 Apr 2008 (HJD 2454580) Ephemeris
Outburst --
Period 228 d
Rise/eclipse dur. 44%  (100 d)
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Click reference title/citation to view in new window. Roll over index number to view submission details.
1 G.Pojmanski, Acta Astronomica 52, 397, 2002. 2002AcA....52..397P
2 T. Karlsson, Maxima of Mira stars --
3 General Catalogue of Variable Stars, 4th Edition, Volumes I-III, P.N.
Kholopov et al.
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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 = 5.82H = 4.98K = 4.56J - K = 1.26
AllWISE W1 = 4.46W2 = 3.64W3 = 3.08W4 = 2.56W1 - W2 = 0.82W3 - W4 = 0.51
APASS-DR9 B = 14.39V = 13.09g' = 13.79r' = 11.83i' = 8.88B - V = 1.30
Please review Digitized Sky Survey Acknowledgment and Copyright.
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Supporting Documents
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Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
3 Otero, Sebastian Alberto 2012-07-19 19:55 UTC Primary record creation. Period and epoch from ASAS-3 data. Range from ASAS-3 and AAVSO V-data. UCAC3 position.
2 Admin, VSX 2010-01-04 23:43 UTC Position updated from the GCVS version of November 2009.
1 Admin, VSX 2005-12-17 20:33 UTC Initial upload.