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Name
R Aqr
AAVSO UID
Constellation
J2000.0
B1950.0
23 41 14.22 -15 33 42.3
Proper motion
Galactic coord.
66.517 -70.325
Other names(Internal only)
Please note that aliases shown in grey link to obsolete records.
2MASS J23434939-1517043
AAVSO 2338-15
ASAS J234349-1517.1
BD-16 6352
HD 222800
HIP 117054
HR 8992
IRC -20642
MWC 400
RAFGL 3136
SAO 165849
TIC 92138849
UCAC4 374-180350
WISEA J234349.53-151704.8
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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 (1811)
Epoch
Outburst
--
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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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 = -0.15 H = -1.10 K = -1.60 J - K = 1.45
AllWISE
W4 = -3.20
APASS-DR9
B = 10.92 V = 9.59 g' = 10.67 r' = 7.57 B - V = 1.33
Images
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Supporting Documents
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Campaigns/Programs
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Legacy LPV Program
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Revision History
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