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  R Aqr  
000-BCR-898 (22284 observations)  
Aquarius Sequence
23 43 49.46 -15 17 04.2  (355.95608 -15.28450) Search nearby
B1950.0 23 41 14.22 -15 33 42.3
Proper motion
RA: 33.00 +/- 1.53 mas/yDec: -25.74 +/- 1.30 mas/ySource: F. Van Leeuwen, 2007
Galactic coord. 66.517 -70.325
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
AAVSO 2338-15 ASAS J234349-1517.1 BD-16 6352
HD 222800 HIP 117054 HR 8992
IRC -20642 MWC 400 RAFGL 3136
SAO 165849    
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Variability type
Spectral type M5e-M8.5e+pec
Mag. range
5.2 - 12.4 V
Discoverer Karl Ludwig Harding
06 Oct 2005 (HJD 2453650) Ephemeris
Outburst --
Period 387 d
Rise/eclipse dur. 41%
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1 GCVS Team Symbiotic spectrum. Emissions of H, SII, OIII, FeII, NeIII, OII. Variable radio source. SiO maser. The secondary may be an accreting white dwarf. The star is embedded in an expanding gaseous nebula several hundred years old. A cycle ~24a and longer-term variations are possible in the changes of radial velocities and period.
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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 = -0.15H = -1.10K = -1.60J - K = 1.45
AllWISE W4 = -3.20
APASS-DR9 B = 10.92V = 9.59g' = 10.67r' = 7.57B - V = 1.33
Please review Digitized Sky Survey Acknowledgment and Copyright.
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Supporting Documents
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 Binocular program
 Legacy LPV Program
 LPV Program
 LPV Humps
 Individual campaigns
Revision History
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4 Otero, Sebastian Alberto 2011-06-28 21:18 UTC Period and epoch from ASAS-3 data.
3 Admin, VSX 2010-01-04 23:43 UTC Update from the GCVS version of November 2009.
2 Molnar, Peter 2006-08-26 03:48 UTC Added discoverer.
1 Admin, VSX 2005-12-17 20:33 UTC Initial database population.