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Details for Revision 4
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Name
R Aqr
AAVSO UID
Constellation
J2000.0
B1950.0
23 41 14.33 -15 33 43.5
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
M+ZAND
Spectral type
M5e-M8.5e+pec
Mag. range
5.2 - 12.4 V
Discoverer
Karl Ludwig Harding
Epoch
Outburst
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Period
387 d
Rise/eclipse dur.
41% (159 d)
Remarks
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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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References
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1
G.Pojmanski, Acta Astronomica 52, 397, 2002.
2002AcA....52..397P
2
Harding, C. L., 1830, Kleine astron ephemeriden
1830kaep.book.....H
3
T. Karlsson, Maxima of Mira stars
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4
General Catalogue of Variable Stars, 4th Edition, Volumes I-III, P.N.
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Supporting Documents
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Campaigns/Programs
Binocular program
Legacy LPV Program
LPV Program
LPV Humps
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Revision History
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