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  RR Lib  
000-BBW-742 (5040 observations)  
Libra Sequence
15 56 23.70 -18 18 14.9  (239.09875 -18.30414) Search nearby
B1950.0 15 53 31.16 -18 09 34.8
Galactic coord. 352.757 +26.181
Other names

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AAVSO 1550-18 ASAS J155624-1818.3 GSC 06191-00619
HD 142641 IOMC 6191000023 IRAS15535-1809
IRC -20300 RAFGL 4220 TYC 6191-619-1
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Variability type
Spectral type M4e-M8e
Mag. range
7.8 - 15.0 V
Discoverer --
11 Sep 2007 (HJD 2454355) Ephemeris
Outburst --
Period 279 d
Rise/eclipse dur. 47%
Some references may be clicked to view in new window. Roll over index number to view submission details.
1 GCVS Team P var. Max = 2409699 + 277.4d*E (JD2409600 - 15600); Max = 2416345 + 273.2d*E (JD2416300 - 19700); Max = 2421027 + 278.6d*E (JD2421000 - 27150) [R.Prager, GuL 2, 1936.]; since JD2427150 - see Table.
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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)
2 G.Pojmanski, Acta Astronomica 52, 397, 2002. 2002AcA....52..397P
3 T. Karlsson, Maxima of Mira stars --
4 General Catalogue of Variable Stars, 4th Edition, Volumes I-III, P.N.
Kholopov et al.
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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 2011-06-06 19:30 UTC Primary record creation. Period and epoch from ASAS-3 data.
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.